Unbeatable acceleration & deceleration of BART @ Union City, Milpitas

Videos taken on 8/20/2022. BART is famous for its unbeatable acceleration and deceleration, isn’t it 😀
Speed limit of approaching trains: 36mph/57kph
Speed limit of departing trains: 36mph/57kph or 50mph/80kph.

[@Sunset4Semaphores]

I cannot the whole fleet is being scrapped. There are like 670 of these cars and only 5 are being kept from scrap... 3 at a museum. The handful at the bottom of the Ocean will probably last longer :(

[@YuqiLinux]

Such a pity indeed.

[@PHope-sl4nj]

Wonderful BART Trains.

[@remyworldpeace]

I love the sound lol

[@dpadjoystick]

Why do the c cars make a 'buzz' sound when accelerating?

[@antoineyoung36]

The buzzing noise from the C cars kinda annoys me

[@dpadjoystick]

@@antoineyoung36 I don't really know why it happens as a londoneer.

[@truefacts128]

The propulsion used on the C cars were originally also used on the A and B cars. The A and B cars had parts that were rebuilt, while the C cars never changed. So basically all of BART originally had that buzz.

[@tomwujek4867]

@@truefacts128 The original propulsion was from Westinghouse which was a DC chopper based system. The replacement propulsion on the A/B cars was an AC based IGBT-VVVF system from AdTranz, which became Bombardier. The Fleet of the Future trains use an updated AC based IGBT-VVVF system from Bombardier, which has since merged into Alstom.

[@WildWildWeasel]

The new cars are sluggish as hell in comparison

[@TRI-Rail-trcx504]

3:43 D-CAR/FOTF! MY FAVORITE TRAIN

[@idontknow12383]

0-50 mph

[@YuqiLinux]

I wish I could catch a 0-65 😅

[@edy21865]

This acceleration is not the fastest and is not "unbeatable". If you truly want to experience or see fast acceleration and deceleration, hop on the Montreal Metro or the Vancouver Skytrain. Those trains go from 0 to 60 in 14 seconds and as fast as 12 seconds if there's a downwards hill right after the station. This fast acceleration is especially noticable on the Montreal Metro as you're literally pressed against your seat and feels similar to if you were in your car accelerating up to speed after stopping at a traffic light. The reason the Montreal Metro has such fast acceleration is because it is a rubber tire metro and has much better grip than steel wheeled metros.

[@dpadjoystick]

Well 12 seconds would be like car acceleration so I don't think that's really possible

[@edy21865]

@@dpadjoystick The Montreal Metro has several features that help it achieve car - like acceleration. One is that it runs on rubber tires, just like a car, but longer. This greatly improves friction and power transfer from traaction motors to the track. Also the stations were designed with acceleration in mind, so right after each platform end, the track slopes down steeply to help the train accelerate and decelerate more easily when going in and out of stations. You can ride it yourself for the full expreience. As for the Vancouver SkyTrain, it uses LIMRail technology, so kind of like a futuristic tram, pulled along the track by liner induction motors instead of cables. This avoids wheelslip from the fast acceleration and immense power and torque output. The trains are also much lighter than traditional, full-size (75ft long, 10 ft wide) metro cars as it is a light rail transit system. Cars are 55ft long and 8ft wide , greatly reducing its weight and allowing faster acceleration and top speed.

[@dpadjoystick]

@@edy21865 I'm pretty sure they do 3.2 mph/s max, which 0-60 in 12 sec would be around 5 mph/s.

[@edy21865]

Yeah my bad, the timing I listed above was for 0 to 50 mph, not 60. Even the trains do have a max design speed over 60 mph, it is never reached as max operating speed for both systems is 50 mph.

[@dpadjoystick]

@@edy21865 thats still 4.1/s... Pretty sure the skytrain and montreal metro cannot do that. Do you mean 0-30 mph?

[@elvirleonard]

BART Train is an Hitachi Train

[@tomwujek4867]

They're not. The original A/B cars were from Rohr Industries, rebuilt by AdTranz/Bombardier. C cars were from Alstom, and C2 cars were from Morrison-Knudsen. The new Fleet of the Future is from Bombardier (now Alstom). The only thing Hitachi is doing with BART right now is designing and installing a new CBTC signalling system which will replace the legacy signals.