How Ride Restraints are Designed

[@matthewmoore8270]

I'd be interested in more videos about the standards

[@artisdmb]

Me too!!

[@Tim5corpion]

Me three!

[@Evan-TheThoosie]

Me four!!!!

[@monkeyredwhite]

Me autistic!!!!!1!

[@daniellewilliams4788]

I'm a civil engineering student, so I work with the ASTM guidelines a lot and it's fascinating seeing other parts of the guidelines. I must say that you explained it really well, and by the comments, you've got a lot of people interested in ASTM. Keep doing what you're doing! :)

[@emilyniedbala]

As a fairly small child who loved coasters, I was pretty disappointed when they added seatbelts to the Blue Streak at Conneaut Lake Park (RIP) which had buzz bars because I no longer got the thrill of airtime and feeling like I would fall out if I straightened my legs... I now understand why it was an important addition but young me was not happy, lol

[@johnfoltz8183]

The same was with Comet at Hersheypark with buzz bars and seatbelts. But Phoenix at Knobels has only buzz bars

[@decorativedandelions]

Would love to see you go into more detail. This was really informative in a way that kept my attention. Good job on the vid!!

[@RomanJockMCO]

Back in 1987 while riding the Big Bad Wolf my harness unlocked right before going down the second drop. I was 13 and started freaking out as i had just gotten over my fear of rollercoasters. I swung it up and then pulled it back down again and it ratcheted shut. I realized that it was a freak occurrence and continued riding. Fast forward to 1993 and I got to ride my first B & M: Kumba. I liked that it had a secondary buckle restraint. Your video detailing how high g rides require a back up should one fail was informative. There are B & M rides with just a lap bar, Mako, that I frequently ride and always just wondered if the hydraulics should fail. Fury 325 has a lap belt in addition to the lap bar. Ive always thought that having a buckle that fastens to the ots restraint could have prevented the Orlando Tower tragedy.

[@thatlegendarytrainer]

I would also be interested in seeing more about the standards and that graph. Great video!

[@ThoosiesCorner]

This video was very informative! It's nice to know how the restraints on coasters work. Sorry for being late but congrats on 107,000!

[@CoasterCollege]

Thanks, glad you enjoyed!

[@SilentStrike117]

U deserve more attention than you get atm I hope you have a great 2024 as does your channel

[@andyroman8223]

I wonder what the legality behind Coaster at PNE playland was. It used to have a very minimalistic buzzbar with no seatbelt, and supposedly strong ejector airtime. Now, it has a tight seatbelt as well.

[@huetobi]

The ASTM standard is voluntary in some states. PNE playland is located in a state that didn't or still doesn't enforce the standard.

[@cynicanal111]

Old coasters that were built before the standards existed don't have to follow them, and coasters that were built during years when the standards were more lenient only have to follow the more lenient standards of the era they were built during.

[@CoasterCollege]

Points to anyone who can figure out where the board room image in the thumbnail comes from.

[@wendyjaa]

This was fascinating, I'd love to learn more about ASTM standards, and more in-depth details like this! I always found the concept around lockout areas and rode fencing to be quite interesting, though I'm not sure if that would be enough info for a whole video.

[@Evan-TheThoosie]

I would love to see more videos about the coaster restraints!

[@AddATudez]

I'd be down to see more on ASTM stuff!

[@betterlooking120]

I would love to hear more!! I would also love more videos like this that go into the history of ride regulations and features. Especially things like launches and lift hills

[@professorhallewell840]

Love your videos! Hell yeah restraints

[@MinkyBoodle44]

Great video as always! I and a fellow student did a presentation that briefly touched on restraint classifications for one of our classes (probably in the very same classroom you’ve had some of your own presentations lol), but this is way more in-depth than we ever got. This is all so interesting! ASTM is the GOAT!

[@Chris0nF1re]

Fascinating as always

[@CoffinFullOfBees]

Yes, please more videos about restraints. I'm a "larger rider" and I would love to hear about what the manufacturers who intentionally accommodate more potential riders are doing, and I think shining a light on manufacturers who could build it better but chose not to would be a really helpful way to at the very least spread awareness of artificial barriers that prevent people from being able to experience thrill rides.

[@chuck4714]

How is size/weight an artificial barrier?

[@FunkAndFluff]

I'd love to see more videos on legal standards for ride vehicles and restraints, especially that subject on restraint requirements based on ride forces you mentioned.

[@moni1356]

I loved this video so much ❤very interested in deeper dives in these types of topics.

[@CoasterCollege]

Glad you enjoyed it, I'll definitely explore this stuff further!

[@GermiesCoasterYard]

Interesting info about the Adjustable Lapbars, and soem nice context as well. I've never seen the ones on Sea Dragon open by accident, but if they are going to have an issue, it's always an issue staying locked in the open position. This checks out with what you said.

[@starslug9302]

I'd love to learn more about restraints and guidelines - this was super interesting and informative.

[@joeeeee256]

First 😎 front row ride for me!

[@SparkOwO]

XD

[@mtbshawn0]

Lol

[@Sauci55on]

Don’t care, the forces are in the back 😛

[@TrueLies23]

And yet, you're last in terms of comments that matter!

[@mayjiccity1382]

I'm always happy to see indiana beach in these kinds of videos as my home park I feel it significantly overlooked visiting other parks just never feels the same no other park has the history or charm as indiana beach

[@asy8696]

it would be very interesting to get a video going more in detail! Thanks for the content

[@pokemonfanwsbgalt8574]

I want a more detailed one please

[@muffels6410]

I would love to Watch a video about the standards

[@FartNoodle22]

I love these Types of vids! I would love to see more like this :)

[@billcook4768]

I know how this works. First they do some safety stuff. Then they build a test version and have real people ride. After each demo ride they have people rate the comfort level on a scale where 1 = Clubber Lang induced pain and 10 = Couch comfort. If the restraint gets above a 3-4, it’s back to the drawing board.

[@RideManDave]

If that’s the case, how did RMC and Togo trains make it into production?

[@oliveredick3047]

Would love to see the ATSM!

[@carstorm85]

Would love to see more videos like this!

[@fobiaargyst5875]

How did you fit all that info in 11 minutes?!

[@maryannkoretoff1023]

Arrow minetrain question! Do you know what kind of restraints Thunderation at Silver Dollar City uses? Is it the spring ones set to open on default? It's my home park and Thunderation is an absolute FAVORITE of my family and I always love pointing out the Arrow Dynamics sign at the end

[@CoasterCollege]

It's the modern version, locked by default, what an amazing ride.

[@maryannkoretoff1023]

@@CoasterCollege cool!!!! Oh agreed. I always ride it every time I'm at the park whiiich is a lot 🤣 I'm finally working up the courage for the big coasters and just did powderkeg for the first time! Wildfire and Outlaw Run are next

[@StephanieBrubaker-n3x]

Do you think that the future is moving to the lap baron rides.i think the top thrill 2 should have the harness restraint

[@CoasterCollege]

Lap bars have become more used than shoulder restraints, I think lap bars are the future, like the ones on TT2.

[@TS_Mind_Swept]

From the title I would somewhat expect this video to cover the shaping and materials used in the restraints as well, not that I'm against it being about the safety standards that go into it (tho if you did want to make a video on the former, I would definitely watch it as well :p)

[@pixelythegamer3260]

How reliable is a merry go round and what happens when it breaks down?

[@sfotnews8633]

It would be awesome if you could make a part 2 to this

[@awkc63]

I'm not a ride person, but I would be curious how the laws are in different countries. I imagine it'd be very difficult for you to get into specifics, but a general idea. Like Canada vs the US for example.

[@RideManDave]

There are a few items here that deserve some attention. First and least, ASTM was the American Society for Testing and Materials. As of a few years ago, ASTM no longer stands for anything at all (much like CBS or NPR); as an international organization they wanted to drop the word “American” so now, it’s ASTM International. The worldwide design standard, F2291, was adopted in 2003 and is updated as often as two or three times per year. It replaced the earlier standard, F1159, which was originally approved in 1988. So anything built before 1988 predates any modern standards. Arrow’s original lap bar restraint uses a biased latch which is biased to the locked position, but once released the bar will tend to open. Once open, the restraint will lock into its open position. Their original shoulder bar was both a mechanical AND a hydraulic system, with a hydraulic cylinder configured to ratchet open or closed in addition to the mechanical pins. Arrow’s hydraulic system did not use an accumulator, so it was not biased to open or close, but the early pedal only systems were bi-stable, that is, the pedal would remain in the locked or unlocked position. This is why rides of this era include a pedal sensor so that as the train exits the station if any pedals are down, the ride will stop. I don’t consider the PTC handlebars to be adjustable. They have only one locking position, and by the way, most are not redundant as they only lock at one end of the bar. If the bar releases mid ride and is pushed *all the way* open it will, in fact, lock into the open position. Finally, the design guidelines in ASTM F2291 are just that. The classification system is based solely on acceleration or seat inclination, and the standard actually contradicts the “rose” in Figure 2, indicating that a restraint and containment analysis is required, and ultimately the Designer/Engineer is to follow the results of the analysis even if it contradicts the guidelines related to predicted acceleration. The full ASTM F24 committee next meets in February in Louisville.

[@smooshpopper2]

the restraints are always the most interesting part of coasters for me

[@coastercult4142]

How did you find this information?

[@CoasterCollege]

First part is mostly from experience, second part sources in description!

[@coastercult4142]

@@CoasterCollege are you a roller coaster designer

[@The-Coaster-Craze]

@@coastercult4142He’s a ride operator

[@fever1]

lol

[@CoasterCollege]

@@coastercult4142 no, experience from working at parks

[@Grisomsun]

The six flags STL mine train still has buzz bars with no belts. Feels insanely unsafe.

[@stormyskyz4251]

I live in the STL area and omg you’re right lol.

[@chrissorto4636]

I already know the answer but I just imagine if I305 would have any shot being ASTM compliant with only lap bars given the high G forces

[@knauff13]

KENNYWOOD SLAYYY

[@vtaaaaaa]

happy birthday watson :D

[@Stubwood_on_YT]

Killer video!

[@dindog22]

I remember when Blue Streak only had buzz bars

[@ninjagirl226]

I’m mildly curious about the New Zootopia ride at Shanghai Disneyland. Apparently a kid fell out last week. People are screaming why wasn’t there a seatbelt. I’ve mentioned that a seatbelt likely wouldn’t have changed much but I’m just told I’m an idiot by people. So I’d be curious on the opinion of someone who knows rides more.

[@onewayturtles]

Graphs! Yes! 😃

[@keithv708]

Yes please

[@aviowl]

Hey, if I can get any kind of restraint on me it’s a positive

[@chrisogrady28]

The example for class 5 restraints was literally the ride Tyree fell out of and died, I felt bad laughing

[@CoasterCollege]

That's explained more later in the video, also it's because I already had that animated.

[@haunter_1845]

Leap the Dips has joined the chat.

[@Ihatethoosies]

I really hope rmc goes out of business so they stop making restraints. Pretty soon they will be making the parts for the train on Mineblower their new restraints will ruin all the airtime. Having shin guards on the restraints is terrible It's really sad how funspot severed ties with Gravity group

[@Pidge287]

i love trains that shuffle!! i love it when my train tracks so poorly it ruins the track!!

[@frozenuruguayball6436]

They should outsource train design to other companies

[@falloutfan6649]

Here’s how they design ride restraints: they come up with the best ways to make bigger people feel terrible about themselves. The end

[@ashleydeborahvanwijnen]

Yeah sure… all about those who are bigger. Ever tought about safety?

[@falloutfan6649]

@@ashleydeborahvanwijnen I’m a bigger guy and I was able to fit on VelociCoaster at Universal. There are ways to make restraints more big person friendly. But they refuse. I’m sick of being excluded because of my weight. Many people like me cannot help it. But we don’t get the same privileges as skinny people

[@stormyskyz4251]

@@falloutfan6649 omg the Velocicoaster is so intense and fun!!!!! It’s my favorite coaster, but also the scariest.

[@LS-ii3fy]

What about us thin people who feel like were gonna fly out !😂