The Math Behind Speeding: More is Less

[@AEONIC_MUSIC]

So what im getting is speeding in school zones is more effective than speeding on a highway

[@skankytrick]

Yes, that's what he is basically saying.

[@Telesk1er]

This!

[@wuppi]

Found mkbhd

[@chrisdawson9312]

@@wuppilol

[@Daniel-qc2tl]

Yes

[@garrettmccullough2249]

Lost all the time I saved in speeding by doing math to figure out how much time I saved by speeding.

[@TheScribbledEquation]

It's the cycle of life lol :D

[@18outof20]

You’re supposed to perform the calculations while speeding

[@ltpetrenko]

@@TheScribbledEquationovercomplicated. 3/4 To = 4/3Vo Near linear on small %

[@meanman6992]

Leaving 15min early has almost never let me down, it also allows for me to relax and enjoy the drive a LOT more which is worth a lot as well.

[@HooksNAmmo]

If you just use your phone and Google it while you’re driving you save a lot of time.

[@michaelhawkingphd]

I don't speed for the time saved I speed for the love of the game

[@TheScribbledEquation]

Haha, looks like we have a Need For Speed fan here :D

[@Nethezbet]

I was literally going to say this. I learned MANY years ago that speeding BARELY saves time. That being said... 😁

[@karlnygren]

My intuition got me right in this question and for me I used it the other way around. If I slow down just a little time won't change much but because of air resistance and such my fuel consumption will decrease. Also, only on longer trips would I benefit from 10% speeding since for short trips it hardly makes any difference.

[@ccolina8176]

Amen, brother.

[@boricuaMaldo]

I also speed for safety. If I'm leading the pack, the pack can't hit me.

[@mr.d8747]

*If you want to go the same distance in 3/4 of the time, you would need to go at the 4/3 of of the speed*

[@Ledabot]

Indeed this waa my intuition, but at some point I wondered if it counts as doing calculations if I just did them in my head to reach my guess of 20mph over

[@TheTechnopider]

​@Ledabot Yeh I was gonna say 80 then he said "no calculations" and I was like... darn. my bad.

[@synchronium24]

Yep, always the reciprocal.

[@ultrasquall22]

Challenge accepted

[@JohnSmith-zs1bf]

These calculations are all wrong. Sometimes going 10% faster means you catch a green light before it turns red which puts you ahead of some slow moving truck which means you catch the next light etc. The only way to play those odds is to be ahead.

[@Julian-n4v6j]

Came here to learn some math, ended up getting a life lesson

[@TheScribbledEquation]

Haha, another life lesson: "the best life lessons are intertwined with the math" :D

[@Flaystray]

You can only learn the lessons of life from God. Stop steering towards the DEVIL 📖

[@patrick.meyers]

@@Flaystray this guy stinks

[@norbertnagy5514]

​@@Flaystray you mean TheScribbledEquation is God himself?

[@husarvargonai4846]

Its fake. Time does not depend on speed. A common misconception

[@onlainari]

You basically prove the most efficient speeding is a small amount of speeding, which is what the vast majority of people do.

[@btCharlie_]

Considering we can't really enforce non-speeding to a T, it's probably the best result we could've hoped for.

[@mikeo6632]

It's not that it's most efficient, just that people's perceptions of how helpful it is line up more with the truth at very low Dv. Most people think 1 or 2 units of speed extra doesn't help very much, and they're right. They also think speeding a lot helps a lot, and they're wrong.

[@WavyCats]

⁠@@mikeo6632 not really. Usually people go 5-10km/h over a limit of 100 if they are on a small hw. That doesn’t help very much. Going 30 over, however, helps a lot. Going 60 over doesn’t help a lot more, but almost no one goes 60 over anyways, unless you are overtaking. The average speed on the Canadian 401 is 30 over the limit. It will shave 25% off your trip of many hours. 30-40 over is a lot, and it does help a lot, which lines up with people’s expectations.

[@ParkourBrian]

@@WavyCats I live and work on either side of a road comprised of a 30km/h zone where people routinely drive 50-60km/h. It all comes down to greed and stupidity in this case. Drivers in this capacity simply don’t consider anyone in proximity to the road - two schools, a public library, a municipal park and a 3 unit plaza entirely made up of daycares - and think the speed limit is only there to inconvenience them in their drive. Selfish and idiotic.

[@killerbski9412]

@@mikeo6632 what about speeding to get ahead of under limit driver or to make traffic lights? Basically speeding to stay on time rather then getting shit on by traffic and lights

[@alexfinn7989]

How much time do you save if the 3 seconds faster gets you through a yellow light?

[@wildearpsadventures4991]

exactly!

[@shawmz]

From experience. Multiple crucial minutes. Running a yellow sometimes avoids future red lights

[@alexeybalshoi2455]

@@shawmz Not just future red lights, a whole lane of cars. That adds up. Some places need an increase in speed limits. In the past few years my city has added 5 mph to some areas & it has helped.

[@kel1770]

You can apply probability to this to measure it. While skipping a red can save minutes, on average you actually save even less time when red lights are involved because even in the few cases where you save time, you tend to hit other red lights or traffic more frequently due to light syncing and platoons. This has been measured in multiple studies.

[@Ninja-2.0]

Strategic speeding and passing can save lots of time, especially if you have over an hour commute. I've cut my ETA down by almost 30min and I've never had a time loss from speeding, so yes, going faster does mean you get there sooner if you know what you are doing

[@danielleza908]

This was very well done, but it is also an overcomplication for most purposes. The simplest intuition is that velocity and time are inversely proportional, so going from 60 minutes to 45 is like multiplying the time by a factor of 3/4, so one must multiply the velocity by an inverse factor of 4/3, which brings 60 to 80 mph. Pretty easy that way. Instead of looking at the change in velocity (delta v) and the change in time (delta t), one can simply look at the new velocity and new time. Thus we get t/t_0 = v_0/v, which indicates the inverse relationship discussed above.

[@TheScribbledEquation]

You're absolutely correct, and that's exactly how I derived the delta v - delta t relationship -- my motivation is that the reciprocal v propto 1/t relationship is not very intuitive, and there is this interesting behavior relating the changes!

[@timesize]

It was actually trash. I was super disappointed in the area that he over explained, and then under explained on thing he thought that were given. While also not referencing crash data above the speed limit, relative to below. Which is certainly relevant in the discussion of whether it’s worth it to speed

[@quentinreid3111]

@@timesize​​⁠​⁠​⁠it’s a bit harsh to say that this was trash. If things were over or under explained then it’s fair to say so. clearly this wasn’t aimed as a safety brief. The video is titled “math behind speeding” and he walks through just that. What viewers take from this demonstration is up to them.

[@timesize]

@@quentinreid3111 fair. But if I’m not sugarcoating, I was thoroughly disappointed. Nearly all of the dimensions I was hoping for were left out. In favor of some nerdy minutia, mathematically speaking

[@antey2008]

I came to say the exact same thing. Instead of revealing 80 is the speed you need to drive to get there in 45 minutes (60/0.75). He over explained the math which the majority of the population doesn’t care about which then defeat the purpose of the video. Is this a math video or a video about speeding? Who knows.

[@swimonster311]

6:50 if you want to save 80% time, you need to ADD 400% of the speed limit. So to save 48 minutes (80% time), you have to add 240mph to 60mph, or go 300mph.

[@TheScribbledEquation]

Ah, yes, good catch! You are absolutely correct, my apologies for this mistake.

[@mikemazzantini6397]

I was about to write this. I checked my math twice and thought I was crazy.

[@Castigar48]

Yeah so increase the speed limits. I'm all for this

[@MrWiseinheart]

Oh ok let me start up my Bugatti...

[@frafraplanner9277]

This is why we need high speed rail

[@KevinDurette]

My city timed its lights to discourage speeding, and what it did instead was reward outright racing with MINUTES of time saved by allowing a sufficiently motivated driver to skip into the next pack of cars and bypass delays from turns and cross streets.

[@maplemayhem1988]

That's some ingenious urban planning

[@privatename7634]

Don’t hate the player hate the game. A Tesla and motorcycle get the green they accelerate so fast.

[@sudunambi94]

Ive intuitively thought this is the case with all traffic lights. As long as I adhered to the speed limit, signals were always green

[@sixty2612]

There’s some stretches where I’ve figured out I need to go really fast between lights to beat the reds. Is fun.

[@jeffgagnon1983]

At 2:40, I knew I was too dumb for this.

[@TheScribbledEquation]

Occupational hazard of a theoretical physicist, often complicating things which don't need complication :D

[@Stossburg]

I know this isn't the point of the video, but trying to get ahead in an urban or congested setting is usually ridiculous. People can't wait to whiz around me, only to get stuck at the same upcoming red light. And they do this over and over. It's a needlessly stressful way to drive, and gains you little time.

[@wyattb3138]

Yeah. I laugh when that happens. “You passed me 10 minutes ago and we still meet at the same stop light.”

[@Kebin-Blebin]

also wastes gas, compared to conserving momentum

[@Ptoki1]

Interestingly enough, all of that is wrong. I've done an experiment for a month, 1 week I sped 10 over, 1 week i went speed limit, 1 week I sped again, and 1 week I went speed limit. I'll spare you the details, but I stopped at 3.4 traffic lights less, i saved 11 minutes (45->34minutes), and my fuel mileage went from ~11l/100 to 9.9l/100. Not to mention if I speed im further away from other cars and more in control of the road.

[@Kebin-Blebin]

@@Ptoki1 the odds of hitting a red light depends only on the light cycle of that light, but the odds of hitting one of a few lights in a row also depends on the timing between each of them, so the optimal speed to avoid reds may vary between each. If that’s your experience in your specific circumstances, good for you, but it doesn’t invalidate the point. Take one way streets as an example, which pretty much always have coordinated light timing such that driving the speed limit will allow you to catch back to back greens. On two way roads, holding a constant speed on average will mostly give the same number of reds, but you can avoid reds by speeding up OR slowing down.

[@Kebin-Blebin]

Another thing to consider for fuel mileage is that accelerating too slow or too fast can be inefficient, since ICE engines generate power most efficiently at certain RPMs, though conserving momentum is the highest priority. Some “hypermilers” can get crazy fuel efficiency out of hybrids that shut off their engines when not accelerating by accelerating in the peak power band to 10 over their target speed, then coasting to 10-20 under, and repeating. It’s pretty interesting, though it sounds annoying and very distracting to drive like that. EVs will generally run more efficiently at lower speeds because the power curve is pretty flat, so efficiency is dominated by air resistance and rolling friction.

[@Chris.Davies]

As a frequent passenger in a siren and flashing light equipped emergency vehicle, I can say that trying to drive faster in a city is a waste of time. The ONLY way to achieve lower times is to use a better route, to run red lights with the siren on. My doctor dad used to measure the time it took driving dangerously to car crashes, and then measure again driving home at normal traffic speeds. If we saved more than 90 seconds driving dangerously, my Dad was shocked. And armed with actual data about travel times, he stopped using the siren or the lights, saying, "If 90 seconds is the difference between life and death for someone, there's nothing I'd be able to do for them, arriving 1 minute earlier." As a frequent driver of a very fast car on long trips, I can tell you that the shortest trip times are achievable by anyone with a modern car: do not slow down for corners. Maintain your cornering speed at a level which would freak out a passenger, and gas it hard at (or before!) the apex. Very good trip times can be obtained on long trips while never going more than 10km over the limit, but only if you keep your average speed high.

[@CodyLynn100]

This is why I didn't even get a blue light for my personal until one of the town officers pretty much told me to get one, so he knew who I was, after blocking me from going down a street we were called to since he didn't recognize my car in the dark.

[@1495978707]

Yep, the only way to get there earlier in the city is to leave earlier and stop less

[@billrobert3226]

That cornering style is going to go through a lot of tires. Slowing down for corners I do mostly for saving tires or if I have a work vehicle and sometimes tools, materials and things shift around if you corner too hard.

[@rangersmith4652]

This is why lower speed limits in urban areas don't meaningfully increase drive times. I marvel at people who race from one red light to the next or blow past one car to wait behind five more.

[@pedrocatalunia]

This is a very within the reality topic that was not considered in the video: trafic. Doesnt matter how fast you are if you end up behind a huge truck, or a trafic jam, semaphore, where you'd be stuck anyways if going withing speed limit.

[@Ziptietechnician]

What we should really be focusing on is risk vs. reward.

[@maplemayhem1988]

Or better yet, fuel efficiency. Risk might screw you but burning more money will.

[@cwr8618]

@@maplemayhem1988risking yours or others lives vs fuel efficiency? Great priorities boss

[@maplemayhem1988]

@cwr8618 better to make an argument that works on people than to waste time focusing on something half of them will ignor

[@shawnb50]

If you gain 50% then you have 150% but then that is now 100% so if you lose 50% then you end up down 25% from where you first started.

[@douglasreid699]

​@@maplemayhem1988the people that choose to speed have accepted it is going to cost more in fuel to get there faster and are happy to do that. Drivers that are not trained to speed but speed anyway need to be educated about the risks of speeding, braking distances increase, they need to read the road far further in advance than normal, they need to be ready to react to every bit of information, they need to understand other drivers are not expecting them to be speeding. The risk is less the speeding itself and more to do with other road users. If all drivers were trained in advanced driving in the UK, rather than taught to pass a test of basic skill to drive unsupervised, there would be less incidents and motorway speed limits could probably be higher.

[@rickintexas1584]

If people would not drive slow in the fast lane then I could save plenty of time.

[@travesty-studios]

It's not about driving slow in the "fast" lane, it's about using the lanes correctly. The left lane is the passing lane, the right lane(s) is the travel lane. You should only be in the left lane if you are passing and subsequently you should move out of the way of people driving faster as it is far safer and efficient than forcing them to slow down, change lanes, speed up, change lanes again.

[@glenm99]

Where I live, the people thinking that the left lane is the "fast" lane are the problem. On ramps are designed for the posted speed limit. If those in the right lane can't easily merge into the left in order to assist and dissipate merging traffic, then merges produce turbulence and bring the entire highway to a crawl. Add in a single accident.... If everyone just drove the speed limit, we'd all get there faster.

[@Reblwitoutacause]

​@@glenm99"if we all drove the speed limit." But we don't. Or, rather, they won't. So, now I'm speeding.

[@mtb416]

@@glenm99Found the “But I’m going the speed limit in the left lane!” guy. Gross.

[@chadkent1241]

Omg right??? There's only TWO reasons people stay in the left (passing lane) on interstates and highways....ignorance to "camping" laws or entitlement. Move over stupid a-hole

[@margauxlowery4324]

I knew i have to drive 2x always. Thanks.

[@waltoncummins719]

Intial guess is 80mph (if want to decrease time by 3/4, I need to divided time by 3/4, which is the same as 60 mph*4/3=240/3= 80mph

[@mr.d8747]

*Me too*

[@zTonyHD]

"If I want to decrease time by 1/4, I need to divide speed by 3/4"* is the logic you're following

[@cric2gd16]

You forgot the last step, 80-60 = 20mph over the speed limit

[@TheScribbledEquation]

Fantastic! I find it very interesting that the 1/time scaling when looked at from a delta_t perspective can lead to such diminished marginal returns.

[@sergeyalexandrovich8443]

And this is correct, no complex formulas are needed here

[@prattacaster]

The less distance you have to go the less speeding matters

[@hurricanemeridian8712]

The dumbest shit is people overtaking you at a risky spot literally less than a mile before they turn into a driveway or at a light at which they have to wait. Whats the point for such a short distance? I understand trucks overtaking each other though since going loke 5mph faster for multiple hrs definitly saves you some time overall

[@joeshmoe7967]

@@hurricanemeridian8712 I just saw this a week ago. A guy zig zagging through traffic. Still got stuck at all the lights I did. So literally got nowhere fast. Risk of tickets or worse. I get in a hurry sometimes too, but recognize when it won't make a difference, so then relax and get there in one piece. - Cheers

[@Killbayne]

​@@hurricanemeridian8712 during a driving lesson, I was on this long slight left curve outside town going maybe 5 under the limit because i was focused on steering, this bmw behind me couldn't take it any more and speeds up to overtake me, still on the bend, as a tractor was incoming. that got his ass right back in his lane before he got turned into mush. it's NOT worth it

[@andreasreichwaldt3994]

Going long distance time spent on breaks matter significantly more than the speed you’re traveling at.

[@1wheeldrive751]

@@andreasreichwaldt3994- true! I do a lot of relatively long distance motorcycle riding. A stop to refuel every 200 miles makes much more difference than increasing your road speed by 10 or 20 mph. The real long distance warriors, which I do not qualify as, put on auxiliary fuel tanks so they can increase their time between refuels. Time at 0 mph is devastating to trip time.

[@JSK1993]

As with anything in life, over time, consistently going at a good pace beats short bursts of high pace

[@tukriko]

It is funny how almost everyone in the comment section had it right on a quick guess, but when you actually randomly ask people to QUICKLY say the answer, I bet most of them will say +15 or 30 mph. Perfect reflection of the internet

[@Pierre.03]

While that is partly true, I think another reason for that is who this video is targeted towards. I might be wrong, but if I had to guess, the majority of people who clicked on this video are more into math, and thus understand the concepts of the relationship between velocity and time better than your average person.

[@tukriko]

@Pierre.03 Good point, that has some effect no doubt

[@musicyay116]

Oh yeah i had guessed 75 mph, but then I actually did the calculation in my head.

[@RaquelFoster]

When something takes 25% less time, it's 33.33% faster. This is the semantic/mathematial nightmare of mixing rate (speed) with time. You have to deal with the reciprocal. 4/3 == 33% faster 3/4 == 25% less time It's only confusing if you're using unlike terms. Pick a context and stick to it. 60 miles / 1 hr == 60 miles/hr 60 miles / 0.75 hr == 80 miles/hr 60 miles / 60 min == 1 mile/min 60 miles / 45 min == 4/3 mile/min == 80 miles/hr 6:33 I'm much more comfortable with this representation! 😂

[@TheScribbledEquation]

Haha, indeed -- reciprocals are something I feel we don't have good, quick intuition for, we are often too used to dealing with linear scalings!

[@makantahi3731]

traffic lights play a role, if you catch the right wave then you are fast, if there is a chance to catch you at a red light, you speed up

[@jsmariani4180]

Speeding up to go through the red light feels exhilarating and saves time at that particular intersection. Unless the lights are timed, you then reach the next light red faster and wait longer.

[@jacobvriesema6633]

I did an experiment back when I drove ~25 mins to work (partial highway). I determined that when driving my Honda Civic at 77mph instead of 67mph, I’d save about 92 seconds. I then drove those speeds for a week each, and determined I got about 5mpg better fuel mileage going slower. Not a huge delta either way, but putting risk into my daily drive wasn’t worth it to save 92 seconds. I’d rather save the money.

[@rjones6219]

I solved this problem around 30 years ago. It was when, they first started installing trip computers in cars. One year, I reset the trip computer, and let it run for about 6 months. During that period, I did many thousands of miles, mainly on motorways, but also on A & B roads. In those days I was a speed merchant (once done for doing average of 104 on motorway, but many times reaching around 130) breaking limits didn't matter. At the end of the period, I checked the computer, and discovered that my average speed, was 30 mph!!!!! Even today, I find the average is still around 30 on extended trips. On motorways, I now set my speed at around 60 mph, I find that on motorways I travel in a 'bubble', vehicles overtake me, and vanish into the distance. And because I'm travelling at a fairly constant speed, my fuel consumption, is very good.

[@CristiNeagu]

Thank you for clogging up the motorways and making life for everyone difficult. Have you tried driving at the speed limit?

[@MoltenSamurai]

As long as he stays in the right lane…

[@GetOffxMyLawn]

​@@CristiNeagu MOST freeways also have a minimum speed limit, typically 55mph... he's not doing anything wrong. Just pass him and carry on about your day.

[@CristiNeagu]

@@GetOffxMyLawn Kinda hard to pass him when his slow speed pushes lorries into the second lane, which then push middle lane hoggers that are going 65 into the third lane...

[@GetOffxMyLawn]

@CristiNeagu Your usage of "lorries" leads me to believe you're not from the US. Most US freeways have 4 or 5 lanes.

[@jphakola]

Driving a speed matching to the road helps you focus what you are doing instead daydreaming.

[@Snerdles]

But driving at 400% of that speed means you have to focus every ounce of energy youbhave on the task or you die... And you get first pick of the pizza slices when you get to the party. Win-Win!

[@DevinJuularValentine]

If you can't focus on the road without speeding, you shouldn't be driving. Because driving is almost mandatory in some countries, it is easy to forget that not everyone is seriously equipped with the right skills in order to be a good driver. The amount of times I hear people say they're so scatterbrained, can't focus on anything, have poor spacial awareness and couldn't ever play a video game because of lackluster hand eye coordination... Then they just go and get in a car 🤷‍♂️ problem is, if you choose the respectful option and admit you don't have the skills to drive, you are penalised for it in most cases, your life will just be a lot more inconvenient and difficult unless you live in a city or country that doesn't have car at the heart of urban planning.

[@Ptoki1]

Nah i disagree, going exactly the speed of traffic is boring, going slightly over is where you pay more attention, regardless if you're a good driver, and also it allows for more room for maneuvers as you're less likely to be around other cars with more room, and if you are you've already planned your route (which lane to change, where you'll be slowing down/speeding up, etc. It's been proven that going under the speed limit is more dangerous than going over it till around 15-20% over when it becomes more dangerous than a car going 10% under, but youre still less of a hazard going above 20% than youre going under 20%.

[@2bfrank657]

100% the most dangerous thing is disengaged drivers.

[@DaKosi]

It was never about getting somewhere on time. It is about the feeling of accelaration, the sound, the tech that just works, having control over something that is powerful and fun. Hearing an engine rev up is like a cry I would like to get out but can't. It just feels good.

[@mrozowskitomasz]

I understood one thing. Speeding 40% over speed limit is a sweet spot 😂

[@TheScribbledEquation]

Lol!

[@taylorseigler]

Go hard to go home!

[@kanjakan]

I love how much, I guess, "soul" this video has. It isn't just a robotic analysis of the math behind speeding. Thank you. Subscribed!

[@bakedjohnwick4793]

I work nightshift and freeway is dead quiet at 3am… 200kmh gets me home in half the time 🤙🏼

[@TexasRoast]

it's not the speed that matters, but the number of red lights you get screwed over by. That's the real-time saving right there.

[@eusebiupopescu-i2b]

i need to reduce my time by a quarter, so i have to go 25% faster. half of 60 is 30, so 15 miles faster. @0:45 this is what went through my mind

[@tylerchidester7179]

yeah. I feel like if I need to half my time, double the speed limit.

[@josecamacho5522]

I like to be late after peak hours because that's the time when everyone is speeding, so my normal speed becomes closer to traffic speed

[@josephlance9262]

I don’t speed simply just to travel faster. I speed to get to the green light in time. Getting the red light adds like 2 minutes which adds up when there’s multiple lights.

[@jwmonke]

Another thing to consider are traffic lights, speeding might get you to the light faster and beat the red, or if it already turned red you are going to stop and wait like the rest of the people not speeding as much. Gas milage goes down a lot when you speed, your engine burns a lot more fuel

[@seankrake4776]

It depends on the route. If it’s mostly freeway driving with no stops, then doubling your speed almost halves your time. If you have to deal with stoplights, stop signs, speeding up, slowing down, traffic, etc, then you have a lot of fixed time barriers. Your increased speed really only affects the smallest portion of the time, and so it’s going to be exponentially less beneficial to speed. I’d guess something more like 45 mph to turn 1 hour at 16mph to 45 minutes, but like I said it depends on the route.

[@aether_beat]

Assuming stoplights are fixed red on arrival, you will never save any time by speeding. But, you may be able to get to a light while it is still green by speeding, which you originally would have stopped at. In this case speeding is more beneficial than in the freeway. Of course, like you said, it depends on the route.

[@Faolan_Grey]

I don't speed to save time, I speed because anything under 60 feels weirdly slow.

[@rancidmarshmallow4468]

My immediate guess was 20 over, because 45 minutes is 25% less than 60, and speed is the inverse of time, so you'd need a speed (80) that 60 is 25% less of

[@widevader]

5:30 point taken, ill be speeding from now.

[@Ptoki1]

I've done an experiment out of sheer curiosity a few months ago, ive averaged my time and traffic lights hit over the span of a month (2 weeks going speed limit, 2 weeks going 8-12 over) My average for the commute time dropped from average 34 minutes to average 45 minutes, and I hit approximately 3.4 lights more while going speed limit. Interesting enough, while speeding my fuel efficiency went from ~11l/100km to 9.9l/100km, I assume this is both because of the car's sweet spot for fuel mileage, as well as the fact I stopped at average 3.4 lights less, which burns the most fuel (no, other commutes did not affect that number because I made sure to clear it on the time I left for the day and note it down when I came back). So in city setting ~60km/h limit, going 70km/h is objectively better in my commute, both for the time, and the fuel mileage, and I don't think my commute is special compared to everyone else's. Not to mention while speeding you are more in control of the road, you are in more open areas with no traffic, your next moves are pre planned (such as lane changes, accelerations, and decelerations), you're more engaged, so your awareness and reaction time are better, and in general it's just much more fun. Now yeah outside conditions could've affected these results, but I wouldn't really assume that over 2 weeks the driving conditions would've changed that much in October.

[@2bfrank657]

Your second point is why I speed. I feel more in control and safe when I get to pick my speed. Keeping my speed at what is largely an arbitrary number just doesn't work for me - makes what would be a flow activity in to a recipe for disengagement. We already have far too many people who are disengaged from their driving and looking for engagement elsewhere e.g. their phones.

[@Ptoki1]

@2bfrank657 you are very correct, the worst cause of crashes is lack of attention to the road, not lack of control over vehicle due to speed.

[@joeshmoe7967]

Your 'experiment' is like my every day driving. With what I call artificially slow limits on some roads, it would be such a chore to stay to the posted limits. Some days it may not pay, but on average I think I get around better at MY speeds. Of course NOT in construction school/playground zones.

[@davidkafka2452]

I find your scenario to be quite the non sequitur. You feel more engaged because you are speeding? Maybe you just need to pay more attention at all times while driving. Lane changes aren’t safer at higher speeds and your ability to react to changes in traffic are reduced due to the compressed time frame. If someone makes an unexpected move and you have to react is objectively better to have more time to react which implies a slower speed being better as per this video. Speed and time being non linear. As far as it being more fun? Wholly subjective and difficult to quantify let alone justify. If doing 10 over the speed limit is more fun then in 20 over the limit the most fun? Is fun also non linear where you see diminishing fun returns at higher speeds? Just plain silly. Another point is how vehicles are engineered. Gearbox ratios are often tailored to speed limits if you have actual gears in your transmission. So you’ll be more fuel efficient driving the speed limit because the vehicle is in the ideal gear at a low engine speed. Let’s say it’s geared to be in 3rd at 25 and 4th at 35 with rpms around 1500. As you start going over the speed limit of 25 the engine speed increases which decreases fuel economy all the way up to about 35 where the vehicle finally shifts to the next gear and the rpms drop back down to maybe 1550 now. So in that range better 25 and 35 you are in a highly inefficient state.

[@Ptoki1]

@davidkafka2452 i pay attention at all times, but i still end up paying MORE attention while speeding. Lane changes at a higher speed than the flow of traffic are safer due to the fact you are the one in charge of where you'll be changing lanes, you can easier find gaps for your car instead of hoping other people are paying attention in a platoon of cars and aren't going to do something stupid. By speeding you also pull away from other cars which makes it overal safer as you aren't driving next to someone who could sideswipe you any moment. The chance of someone making that unexpected move you said are much higher if you drive next to people than if you don't, am i wrong? By going 10 over you don't lose any chances to react, in fact i'd say your reaction time is about the same because youre more engaged. Yes, fun is subjective, and i don't usually go more than 10 over bc i dont want to pay tickets, so i cant tell you, to me the fun factor is overtaking cars and finding gaps in traffic flow. On fuel efficiency topic, speed limits are honestly way too random for you to be able to apply your point, speed limits range from 30-80 kmh in city roads, there are plenty at each range (30,40,50,60,70,80) so if your car does work less efficient at some speeds, then inevitably that willl be the case when you follow a different speed limit as well, so the only place we can apply your point is the highway, and yes, usually the faster you go on a highway the more fuel you will burn for multiple reasons, but im speaking strictly about city driving. In a city by going 10 over you reduce the amount of red lights you stop at statistically which are the main reason your fuel economy takes a hit.

[@DevinJuularValentine]

I always think... I'd rather be ten mins late to whatever I'm late for, than late for everything else I could have gone to in life because I died having an accident whilst speeding. After reading a comment here from an emergency responder, I can safely say that there is nothing worth speeding for. We operate the most dangerous machines on the planet in terms of cause of death and frequency, I wish more people really held that responsibility with the respect it deserves... And stopped being babies about speed limits as if such enforcements really impact their lives

[@Jouzou87]

7:00 Need to go 400% OVER the limit, so 300 mph

[@TheScribbledEquation]

Absolutely correct! That was my bad, I apologize for the slip!

[@SliderFury1]

From my experience, it's less about adding speed and more about not losing it. I don't slow down on highway curves. In fact, I usually speed up. Cruise control can help with this if you don't feel confident. But, I have beaten Google's projected arrival time for me by anywhere from 3 to 10 minutes depending on the length of the drive just from not slowing down on curves.

[@TheOneAndOnlyNeuromod]

All of those maniac speed demons need to watch this. And it holds true except in one common case: When *everyone* is leaving 15 to 30 mins early to get the same gains, they end up creating the rush hour situation - and all arriving at the same time (on time) anyway…which sucks. Having the flexibility to leave a little after or before everyone else creates less flow restriction on the highway/freeway - and gets you the most gains.

[@CristiNeagu]

I do a relatively short drive on a daily basis. If there is no traffic and I can drive at my own pace (which is, in places, slightly above the speed limit), I get there in 10 minutes. If there is traffic moving at normal traffic speed, I get there in 15 minutes. I am not talking about congestion. This is because UK drivers are incredibly slow. If I can, I overtake these drivers. So if I don't speed, it takes 50% more time to get there. And that's the difference between going 37 and going 45. This is because if you're slow, more drivers get in front of you, and you have to deal with a lot more slower drivers, and you have a higher chance of ending up with a very slow driver in front of you. This isn't only a distance over time problem. The environment matters too.

[@GryphonBlazier]

My thought process was like this: "Hmmm... Isn't it something like to get there in 3/4 of the time, you have to drive 4/3 as fast? That's a direct inverse, but I don't know why I know that, so lets plug in some values. Twice the speed... Half the time! Four times the speed? A quarter of the time! Half the speed? Twice the time. Ok, it at least works for powers of two. What would 4/3 be then? Well 1/3 is 20, so... 80 miles per hour. So then in an hour, you go 80 miles. To see how far you go in just 45 minutes, thats 3/4 of the time, 3/4 of the distance, which is... 60! Awesome"

[@sanketssc]

0:55 lol I already did calculations till you said

[@TheScribbledEquation]

@sanketssc hope you enjoyed a reiteration of the calculation you did as you watched the video :)

[@sanketssc]

@TheScribbledEquation yes, indeed got good insights about the calculations

[@TepidTake]

Incredibly good, in-depth explanation of this. Every time I happen to think of this problem, I'm driving and can't do any calculations, and by the time I'm done driving I'm done thinking about it.

[@theredblob]

This was intuitive for me in my head. 45 mins is 0.75 of an hour, so 1/0.75 is 1.3, and 0.3 of 60 mph is 20, so you’d need to be going 20mph faster.

[@DavidPysnik]

Well, 0.3 of 60 is actually 18. You of course mean 0.333… repeating forever, or 1/3, instead of 0.3, which is 3/10.

[@kgpax]

When ling distance driving speeding can make a huge difference!

[@danielboughton3624]

Making up that much time is a big difference over a relatively short distance. If you are driving a long distance on relatively open road then a small amount of speed change makes a big difference. This is obvious crossing states like Nebraska, Wyoming, and Montana.

[@CalvinHodgson]

Exactly! Driving 800 miles, a 5 MPH extra can save 45 minutes on the trip overall.

[@remander3873]

When a mathematician overcomplicates a simple problem, but in doing so, provides a much more detailed explanation of not only the answer but all possible answers. I simply had this as x/1 = 60/0.75, which, of course, gives the answer, but it misses the intricate relationships.

[@TheScribbledEquation]

@@remander3873 i’ll take that to imply that you enjoyed the video :) but I absolutely second what you said!

[@misternaem2103]

I do it to get away from the people who don't know what they're doing with their vehicle. So many people will brake when unnecessary, which wastes time.

[@joeshmoe7967]

Even more so on a motorcycle. Not only do they waste my time, they endanger me. Lately it seems they hand out licenses to clearly clueless people. Also seeing a huge surge in not signalling.

[@peterbaruxis2511]

@@joeshmoe7967 I love (hate) seeing the turn signal come on when they're half way through the turn. WTF do they think it's for. Wait- "think" never mind. Stay safe on the two wheels.

[@soumilkadam9310]

If you drive fast and then reach a red light or traffic, the car you passed eventually joins you again! 😂 I learnt while driving to work, that some of the shortest times were not achieved when going fast, they were achieved even with moderate speed when there was no traffic!

[@DavidPysnik]

My intuition says you need to go 80 MPH, but I do this kind of thinking all the time when I’m driving long distances. Because you want to make it in 3/4 of the time, you have to go 4/3 as fast, and 4/3 of 60 is 80. Time to watch the rest of the video…

[@TheScribbledEquation]

Absolutely correct! Hope the video was able to add some nuances behind the non-linearities in speeding!

[@bryanherman1035]

Good video, I liked it. Very interesting. I read a response in a car magazine once that sort of talked about this same concept, but it was more about how much energy is required to go faster. It was a reader that thought they had caught them making a mistake in their math. They initially said it takes 8 times the power to go twice as fast. The reader thought that the formula for kinetic energy was correct (it says that when you go twice as fast, you have 4 times as much kinetic energy), but the magazine explained that the initial statement was correct, because the real formula is "road-load power requirement", meaning essentially, "what does it take to push a car forward, acting against all the forces trying to slow it down?" When I played around with it a little, I found it astonishing how much things like aerodynamic drag would increase at incredible rates, requiring more and more power to counteract them.

[@adamhale6672]

Some thing you should consider when driving is that the risk you take also increases exponentially the more you exceed the speed limit. This means that driving 10% faster not only saves you 9% the time, but comes with a greater than 10% increase in risk. Be safe out there!

[@blubb7711]

Speed has nothing to do with accidents.

[@goodbodha]

I always joke about having someone pass me on the interstate a few miles from my exit and yet we end up sitting at the same light at the exit. A small bit of extra speed rarely works out because you just rush to get behind someone else.

[@postwardream]

This is oversimplified. If you go faster, you might make it to signals and not waste the time standing and waiting for green light. Even if you not make it to signal, you still can be closer to intersection and it can save you some time on the next signal. This is non-linear system.

[@wrongplacerighttime]

100% I have clocked certain areas and know if I speed at a certain point on the road I’m on, I’ll make the light. Making the light is wayyyyyy more efficient than just speeding. I drove 77k miles in one year as a trainer for a roadside assistance company. Making the lights is key.

[@abrownduck3]

Traffic and stopping and getting going again with people in front of you is what takes time. They are the reason you speed

[@nikolairubinskii6450]

3:30 my intuition was spot on lol

[@basstegehuis200]

If you want to save time, include as little left turns (or right turns in countries that where traffic drives on the left side of the road) in your route as possible. This will save more time than speeding when there’s traffic

[@pandabytes4991]

I always use driving 65 for 1 hour in a 60 zone. Then, after I make that time easy to understand for more people, I bring the randomness off traffic and lights into the mix to express how speeding, sometimes, has no time benefit.

[@DevinJuularValentine]

Conversely, you save so much money on petrol. I do 60 on motorways in England (70mph speed limit) and generally get 200 miles out of £20 when before I would get 120 miles on the same money. This is on a motorcycle, so quite literally your milage may vary. I used to commute 66 miles a day, 5 days a week. 40 weeks a year for two years - by doing 60mph on just the motorway section (40 out of 66 miles per day) I roughly saved £1760 in petrol (132 full tanks of petrol [~£20 for ~14litres] vs 220 tanks of petrol)

[@chrisl1797]

I once drove our Ford Mondeo back home from 80 miles away with my Dad following in a Transit. I didn't speed, but I didn't hang around either. By the end of nearly two hours driving I was a massive ..... 30 seconds in front of him.

[@waterboy330]

I race the lights. Not the speed limit. This data is incomplete because it doesn’t factor the average amount of time people wait per speed light. Where I go to school I can get there in either 10 minutes or 30 minutes based exclusively on the traffic lights alone. It is definitely worth it to punch the gas through a notoriously long stop light. The amount of time spent at the stop lights would also affect your overall average speed which could also be factored.

[@DevinJuularValentine]

What if one day you race the lights, but focusing more on getting past that one annoying junction, you miss the cues that another car is pulling out into your path. Because of the extra speed, the force on impact is greatly increased, and you are shunted into oncoming traffic. A truck slams into your door side, crushing you in an instant. You don't get to school that day, or ever again. Idk dude take a chill pill and leave 20 mins earlier. Seriously, driving relaxed is so much less stressful, and you are no longer fighting traffic infrastructure. In England, I have noticed that you have to be doing about 50 in a 30 if you want to beat the traffic lights. 40 isn't going to cut it, they are designed that way to discourage speeding - so it seems, anyway. So just imagine how much more brutal an accident at 50mph is than 30mph. Maybe it's different where you are, but honestly... It's not worth it, it's just not worth it.

[@waterboy330]

@ I am a relaxed driver. I am not aggressive whatsoever and often play reggae while cruising. They say when you get in a car accident when you’re relaxed, your chances of injury are significantly reduced. I’ll probably be fine.

[@Ptoki1]

This comment is what i was looking for. Racing the lights when you're going 10 over is guaranteed to save you at least one light cycle somewhere along your journey if we suppose your journey is 30 minutes through the city, and it is likely to save you more than just one cycle, already bringing the time saved to a good 6 minutes, if not multiple. My journey times through the city dropped by ~13 minutes from 30 min to 45 while i was doing the speed limit instead of my usual 8-12 over, over a month period of testing, fuel mileage also was better.

[@Reblwitoutacause]

This.

[@LukeA_55]

​@@Ptoki1 I've also noticed how driving the speed limit sometimes gets you in sync with the lights in town

[@toomdog]

This just reinforces my friends viewpoint, who once said ever so matter-of-factly, "I've never seen much point in speeding unless you're going to double or triple the speed limit."

[@TomoReso]

2:55 yes yes i understand nothing already 😂

[@orazha]

Many years ago, the Milwaukee Journal had a front page article about a test they did having 3 drivers leave Madison (WI) at the same time headed to Milwaukee (about 60 miles) at different speeds. It was a much simpler way of testing the effect of driving different speeds in the same conditions. I'm guessing that the speeds were something like 55, 60, and 65. The difference in time to arrive in Milwaukee was so close that it showed that it didn't pay to speed. I'm not convinced that it made any difference in how fast traffic went after readers saw that. These are interesting projections that likely won't make any difference in how drivers drive because drivers are reacting to too many other factors in deciding how to drive.

[@Rl55322]

1) it’s a distance of about 80 miles not 60. 2) getting from Milwaukee to Madison takes a 70mph freeway. No clue where you got those speeds from, but if they weren’t on the freeway then traffic lights or getting stuck behind slow drivers on a one lane could’ve made a big difference 3) no way a local journal is going to be encouraging its residents to speed so of course they aren’t gonna say if it really makes a difference 4) very few speeders on the freeway speed by only a small amount. I’ve done trips at the speed limit, and doing the same drive 10-15 over makes a BIG difference in time. Bear in mind the math from this very video shows going 4/3 of the speed limit can reduce drive time by 1/4 which is pretty substantial. 15 over in a 70 isn’t gonna be as much but that can still be a lot of time for drives that are 2 hours + 5) lastly, speeding in more urban areas can make a huge difference. Going just 3 or 4 mph faster can be the difference between getting stuck at a red light for a minute or more. Yeah sometimes it’s inconsequential but sometimes it really matters

[@Nabla_Squared]

I always complain about this when I'm travelling with someone and I'm not the one driving, because you have to take into account kinetic energy, which is quadratic with speed. So to save a little time you have to increase the risk of death by accident by a factor that goes to the square of the velocity. And it really strikes me that this is not talked about when people are being taught about driving safety, it's basic physics and it can save hundreds of thousands of lives a year

[@flurbleman4486]

You overestimate how many of the general population would bother with any notion of physics

[@Nabla_Squared]

@flurbleman4486 maybe, that's what happened when you are a physicist. But os not too difficult to explain it and inform people about that

[@tristan6773]

average person can barely spell their name. 3 steps of thinking is way too much.

[@tristan6773]

50% of people will sit and hear this and not understand it. you overestimate ppl

[@xxslayer255xx]

I feel like if you told the average American that kinetic energy was proportional to velocity squared and that risk increases quadratically with velocity, then the average American would not understand why we're talking about "squares and shapes" with energy

[@waynenocton]

Might be fun to do the same thing, but in an airplane using headwind and tailwind. A headwind hurts your time more than a tail wind helps your time because you spend more time in it with the headwind, maybe you could do another video about that. But, if you go just a little bit over the speed limit, and it makes you get a traffic light green instead of red, or keeps you from getting stuck behind a school bus, or slow traffic, it can help you much more. Of course, going faster makes you more likely to crash, so you could end up not getting there at all.

[@marcelnel2544]

But when you consider speeding in town or somewhere with traffic lights, speeding could do more than just go faster. You can get more green lights as you are driving or get a green light earlier compared to when you are driving at speed limit

[@meepilee7991]

You are just as likely to have to wait at a red light. On roads which are empty enough to speed, red lights really only last for about minute anyways. If the time is significant enough where that matters, just take the highway

[@gobblox38]

There's a lot of people with this mindset. They'll quickly speed up when the light turns green and brake hard at the next red light. I just accelerate slowly and coast to a red light. Most times, I end up right next to the people rushing. It's a waste of gas and causes more wear and tear on the vehicle to speed quickly and brake hard.

[@charliecandimaunten1635]

Ime, going faster in hopes to catch the next green almost never pays off. As the video shows, to beat the timed lights you have to go significantly faster than the limit, and forget about the sensor lights. Occasionally you get lucky, but most of the time you just burn gas and risk a ticket only to hit the red light anyway. Getting pulled over will add at least 15 minutes to your trip, compared to the 1 minute you _might_ have saved by beating the light-and nvm the hit on your insurance, the fine, the time to go to court, traffic school, etc. etc.

[@dle511]

@@gobblox38 can't agree more, those people might get there 5-10 min faster but they must definitely spend more on maintenance (tires, brakes, gas, etc.). I love coasting!

[@Ptoki1]

@@dle511 tbh im going to disagree with you, obv dont accelerate if the next light is red and you can see it, but going 10 over the speed limit caused me to stop less at red lights on average, which means my car was traveling at a more stable speed, which in turn reduces the wear and tear on everything. I didn't have to brake any harder than any average other driver, in fact I had to brake less. I've also saved time, and gas mileage after I did the math.

[@curlyfryactual]

I fell into the underestimating linear camp, but when I was younger I deduced there was a sort of vertical asymptote somewhere. First I realized if I double my speed I can cut trip time in half. But then I wondered how fast I would have to go to reduce trip time by 75%. I realized I would have to double my speed *again*. The example was something like traveling 40 miles in 40 minutes. To make the trip 20 minutes long, I have to average 80mph...but to make the trip 10 minutes long, I reasoned I would have to travel 160mph. The number was so unrealistic for a (my) car, I wondered if I was right. So, I thought about it and realized it made sense: what if I wanted to travel 40 miles in 1 minute? 40mi/min * 60 min/hr = ...2400mph !!! So, that's really when it hit me that, of course, there's literally a limit...because what you might consider “mach 3” (I know that's not how it works let me have this), was just impossible. Naturally, the last question was, well what about 0 minutes? The answer was obvious. Traveling any distance in 0 time means an undefined (or infinite) speed. This video was a good reminder of that late night thought in bed all those years ago when I realized: you can't really make up for lost time.

[@Jykobe491]

Speeding has a lot of benefits if done well, it gives a clearance between you and the next car behind you incase you want to pull out of the road or need to make an evasive maneuver because of an 1diot in front of you

[@ds29912]

The inverse is also true.

[@Jykobe491]

@ds29912 the benefits I mentioned only apply to speeding, if you are at a lower speed, it is more likely there will be cars trying to overtake you, closing the window for you to pull out of the road till they pass

[@robbywendel7229]

I thought 30 minutes. Eyes opened. Cheers!

[@GilBellamy]

"Most people have a linear perception of the relationship between speed and time, but is not really that simple". Well, *it is* really that simple.

[@CoolAndNormal]

I accidentally figured this out when i spent too much time in my car driving alone to work and back. i was noticing the curve between KPH and MPH on my speedometer and working out that relationship in my head and accidentally realized the diminishing returns on speeding. i was able to guesstimate some actual saves on a car delivery once and never thought about it again, great video!

[@yo_its_gingey5329]

If you don’t care about efficiency then it’s faster to get where you want to go by speeding as much as you want. I couldn’t give a f about my gas mileage, I’m tryna get somewhere as fast as humanly possible in my vehicle.

[@peterbaruxis2511]

I miss my 1976 Datsun 280Z. Manual of course.

[@akaraven66]

Slow is smooth and smooth is fast. It doesn't matter if you speed unless there are no other cars in the way, no traffic lights, no rounds abouts, no stop signs, just a straight enough road that lets you speed at a constant amount without interruptions. Otherwise going fast, cutting people off, swerving in and out of traffic, you end up slowing down other cars. And chances are someone else up front is also doing the same thing and slowing down people in front of you, and someone is in front of them doing the same. The snowball effect of the front person driving like a mad man is that the further back down the road the slower everyone ends up going until you hit traffic and end up going slower than the speed limit. And the more and more people do this, the slower and slower the traffic gets until you end up getting to an intersection, or an on/off ramp on the freeway and now you have stopped. Driving smoother and ensuring a higher average speed means you will always end up going faster. Trying to work out how much faster you need to drive to save that precious 5-10 minutes means you need to do that speed over the speed limit on average, so when you end up hitting some traffic and you are now going slower, you need to now go even faster once you pass traffic to make up for that lost time. For example, if you need to go 20 Mph over to save 15 minutes, the moment you hit traffic and end up going slower than 20 Mph over you are no longer saving 15 minutes, it could end up being 12 minutes saved, so if you want to now save 3 more minutes you need to than start going 25 Mph over. And once you hit traffic again? Now you need to be going 30 Mph over to regain that new lost time and so on. This maths only works on the assumption you can maintain that constant Mph over the speed limit for the entire duration of your run.

[@1495978707]

On a 5 hour drive with average speed limit of 65, going 75 saves almost a half hour. If I'm getting there at 4 as it is, yeah big whup. But if i'm getting there at midnight? That half hour makes a huge difference. Plus I've found that it is minimizing time not moving is waaaaay more important than speeding. That half hour can easily be offset by stopping for road food, gas, and bathroom

[@SilverSquirrl]

I'm totally with you on this. I use to drive 600 miles fairly regularly. That extra time saved is huge over that distance, plus I can stop more often, get back on the road, and still pass the same semi's 3 or 4 times. So even if my total time isn't shorter, my QOL is better because I have more breaks during the same period of time.

[@benicolay]

This is the most convoluted way of explaining the relationship. If you want to get there in 3/4 time, you must travel at 4/3 (4 thirds) the speed. Next explain to all the idiots watching this and think it justifies then speeding, how much more power they use by speeding

[@jacobgalle4297]

On a 6 hour trip, driving 10mph over the speed limit for 6 hours puts you 60 miles closer to your destination after 6 hours than you’d otherwise be, potentially shaving off an hour of drive time.

[@permana890]

Finally! a comprehensive explaination on how speeding is actually never worth the risk! Now let's consider the traffic light. IMHO managing your speed in such a way you always get a green during the traffic light is the best thing you can do for your fuel and your travel time. If you can explain it in detail, that would be appreciated.

[@swordguy8]

Using that curve, at what tangential angle will the extra speed start to give diminishing returns? Is it 45 degrees? We should go whatever speed lines up with that point.

[@jasexavier]

This is true on a highway with constant speeds. In town though, there are confounding factors. Where I live the stop light timing on most routes is extremely punishing to those driving the speed limit. Driving to the light timing, generally between 10 and 25% over the limit, cuts my commute time in half. Of course, this is extremely poor traffic engineering as it not only encourages speeding, but creates an environment with large differences in speed, with some drivers following the limit and some trying to make the lights. It also tends to put those two sets of drivers in an ongoing state of rage at each other, pretty much all of the time.

[@prestonduffield5393]

But when driving for a long time, it adds up. Drive for 5 hours and someone going 60 went 300 miles, wile someone going 80 went 400 miles. So if your road trip was 400 miles, you could get there in 5 hours at the speeding, or nearly 7 at the limit.

[@nadavegan]

They never address the accumulated advantages of speeding. A mere 1minute savings each way on a daily commute equates to two weeks saved over the course of a career. Totally worth it - I plan to live two weeks longer than i otherwise would. And more, if i can get the lights green.

[@TheScribbledEquation]

Agreed, and this is precisely the reason I normalized by T0 in the video, to be able to make the speeding relationship universal and independent of the length of the trip, capturing it all in terms of relative changes.

[@Kebin-Blebin]

You are experiencing the ability to cover distances that would take days or weeks on foot and you’re concerned about saving minutes or hours?

[@R1gBoN3Gaming]

​@@Kebin-BlebinYeah, people want to save minutes and hours for other shit. Why not for driving?

[@nickdecker2350]

@@Kebin-Blebin Of course. Even if they mean little histrionically, they're still minutes and hours of my life, and who knows how long it'll last

[@rafaelcordoba13]

The main issue on road trips speeding is that at some point you will meet a car or traffic lower than the speed limit and that will nullify your gains by speeding before, basically making the “within speed” version of yourself catch up.

[@subsub339]

You get behind the 'obstacle' in a random way, whether you are travelling at or over the speed limit. So the gains from speeding are never actually ' lost'. You may feel that you didn't realise the full potential of your speeding because of the obstacle, but whether you approach the obstacle at 80mph or 35mph, you still go the speed of the obstacle until you overcome it, the sense of success is then linked to the proportions of your journey: Speeding or obstacle versus the perception of how long it should take. On my daily commute at normal times takes 60mins. At 4am in the morning the same journey can be achieved in under 30mins, with an average speed of over 100mph.

[@umi3017]

One thing worth mention is how much risk it put, just the example you go 80 instead 60, if say a truck flip and stopped in the middle of the highway, and with 60mph you can just brake and stopped in time, under the same condition, brake at same distance from the truck, at 80mph starting point, you'll hit the truck at 53mph.

[@Ptoki1]

Very true, that's why you need to plan properly. You can go 80 in a 60 as long as you aren't tail gating, and youre paying proper attention to your surroundings.

[@danielboughton3624]

on the other side of the coin going slow you are more easily distracted or likely to zone out. Driving in Panama on open highway the speed limit was about 45mph for most of what would be a 60mph road in the US where most people would be doing 65-70. Your likelihood of reacting quickly to anything while zoned out is a big factor. Also in your example if you hit the truck right as it flips you have less overall issues than if you hit it after it has a chance to start slowing down. Most people, speeding or not, do not leave enough time to react where the standard is 2 car lengths plus 1 more per 10mph.

[@zhouye7647]

as a delivery driver once, speeding do save you a lot of time, we are encourage to do it and our navigation system will choose quite street with little traffice over main road with a lot of traffic. The idea is you can go 100 in the 50 zone in the residential area that is usually quite during the day. In the industrial zone like going back to our depot, we are usually doing 200 in the 50 zone so we can get off work early.

[@asdasf8817]

We need to show this video to all Californians

[@TheScribbledEquation]

Haha, having lived in California myself for over 7 years, I can resonate with that :D

[@98farhan94]

I'm bad at maths, so what I did was: you need to reach there in 0.75x the time, so the speed of which 0.75x is 60mph would do. To get the missing 0.25, 60/3 = 20; 60+20=80. Then I watched the video and realized maybe I'm not bad maths, just at systems thinking.

[@TimRobertsen]

My first thought was of a tachymeter bezel on a wristwatch (but I'm not sure if the units scale in the same way)

[@TheScribbledEquation]

That's an interesting thought -- to use a tachymeter to estimate the speed needed! Did you mean by varying the speed and reading off how much time it would take?Thanks for sharing.

[@ehb403]

There are numerous assumptions in this video. Speed is never constant, but you also must allow for acceleration and stopping -- these have a significant impact on time (and fuel mileage). If you are stuck Behind a slow truck doing 50 mph then early passing makes a bigger impact (do it safely). Also notice that the graph is not linear -- a little bit faster has a larger influence (which is why the 50 mph truck seems so frustrating -- it's not your imagination).

[@daishin8492]

i speed because it is fun any saved time is a bonus

[@Michael-pp8lz]

a win win situation lol

[@beans9647]

I semi-frequently take 300 mile road trips where the Google Maps estimated average speed is about 66.7mph based on the 4h30m estimate. The highways are a mix of 55s, 65s, and 70s. Usually it's late at night so traffic isn't a big deal, and I stick close to my own rules of +5 past cameras, +9/whatever they're doing near cops, +10-15 in town, +15-25 on the highway. There is a particular stretch of 55 that is just dead, so I'll break that rule there and sometimes hit close to 100mph in short bursts. I've felt this diminishing return as I've taken this trip more often, going from 4h30m to 4h is an average speed increase of about 8.33mph, but trying to go from 4h to 3h30m requires an additional increase of 10.7mph average. My single best run clocked somewhere around 3h45m, which is an average speed of 80mph. That being said, I'm less interested in the minutes saved by the speeding, I'm in it for the rush... so any time savings are a nice extra drop in the hat.

[@lpi3]

To be on time you should still drive at 60 mph, but start earlier

[@sergeyalexandrovich8443]

Thank you, Officer!

[@antipoti]

Exactly. Best way to never be late and never be in a hurry is to add buffers and overestimate. Worst case you end up relaxing in the car for 5-10 minutes and collect your thoughts before going in wherever you went.

[@SantiagoGT15]

This is the most reasonable answer, taking 10 minutes to arrive early is the best choice, you save on gas too

[@salsamancer]

It doesn't matter because in either case you'll end up stuck behind the grandma doing 45mph

[@tigerwarsawband]

Einstein said, The faster you go the less you age. Speeders are younger than speed limit followers.

[@kendelion]

I used to drive very fast on expressways when travelling over long distances. But I get stressed and tired having to weave and speed around other cars so I have to take a break every 1hr. Now I have a car with adaptive cruise control, I just follow some car and let my car follow them. Usually they go 10 below since some trucks here are limited. Now I'm not tired, not stressed, and have to take a break only once for toilet breaks every 2-3hrs, sometimes none at all! :)

[@earlturner6023]

I recently did a 13 hour drive going balls to the walls the whole time. Only stopped a couple times to fill up gas and pee. Git gud.

[@kendelion]

@@earlturner6023 I don't have any reason why I should do that, why should I? Yet that's a great feat to have at pinch especially during long vacations where parking areas are packed!

[@lechprotean]

An edge case: we departed early in the morning for our holiday destination in the Mediterranean. Total of 1400km. With stops and taking turns driving we got there in 12 hours just in time for dinner before the restaurants closed. If we were riding say only 100km/h that would be 14 hours of driving + stops so too much for one day and we’d have to stop along the way. So a difference between going 100 and 120 would be about 12 hours or 100% !!!

[@Zukuri620]

It's more than just speeding. I have commuted between 1.5 and 2.75 hours one way for the past 8 years. You have to have a strategy. A route, a speed, a lane, 360* awareness, a contingency plan. You can't be talking on the phone, you have to have your head on a swivel and your eyes looking as far ahead of you as possible. It's imperative you signal your lane changes properly. And give plenty of space to rigs and other drivers. If only people would keep right except to pass, I could practically teleport.

[@BleachWizz]

2:00 - what I still think linearly, don't I? that's still not the picturethough you want to save to 3/4 of the time so you need 4/3 the speed, adding a 1/3 to 60 gives you 80.

[@dsm02c]

Traffic in north Texas is so heavy. Hard to average a consistent speed over the limit.