ATO and Weather

[jamesb]

Ages ago, before I knew about this forum I was at Woodford station and the weather was quite drizzly... As a westbound train entered the station, it was making a lot of "pssst pssst pssst" sounds and as it was half way in the platform black 'smoke' came from underneath just one carriage towards the front. It smelt very strong, like burning rubber. By the time the station assistant on the opposite platform noticed, the train already had pulled away and continued its journey. Was that caused by brakes locking up?

[auxsetreq]

It's the wheel slide protection making the psssting noise. It's the brakes dumping air from the cylinders when low adhesion is detected. This protects the wheels from flats and makes the train stop right on the mark. It's a kind of ABS, but on a train. Say what you like about the 92, but it has clever and powerful brakes. They really work well. As for the smoke, that was something else, though what is anyone's guess.

[jamesb]

So if a Central Line train was entering an underground station at the fastest normal speed and the driver applied the emergency brakes just as the train was exiting the tunnel, how many carriages into the station would the train stop?

[Colin D]

(20 months - is that a record for thread revival? )

Probably - it must be taking a long time for the forum to get across the pond to ColinD

WOW you mean I'm a record holder ;D, thats a first for me Wonder how long that will last

I didn't want to start a new thread if the question had already been asked and this was the closest and most fitting one I found. It's also interesting going back on old threads, so much great information to be found throughout this site, and thats a credit to all of the members that have and share their knowledge of this great Underground system

Thanks to all

[Deleted]

Black smoke - caused by hot brakes, probably coated in gunk and muck, it was this that might well have been burning off! Wouldnae worry....