I noticed when I done a service from Harold to Elephant that the increased speed limit goes into affect after the entire train has passed but when doing a service from elephant to Queen’s Park the speed limit increase seemed to go into effect when the front of train reached the speed increase area as stated on hud I’ve heard bakerloo line works something like this but is this correct or is it a bug
The line between Harrow & Wealdstone and Queens park has BR regulations, and the rest of the line between Queens park and Elephant & Castle has LUL regulations. Hence the difference in when speed limnits applies.
For the underground section, it's the front of the train. For the overground, it's the back of the train. That's correct
The basics of this are as explained above The reasons are... All tube trains on each line are the same length (so all bakerloo trains are the same type of train and the same number of cars, so all the same length) so they can put the increased speed board this length away from the reason for the reduced speed, thus drivers will know they've passed the issue and can accellerate accordingly On a main line you will get trains of all sorts of lengths from light loco to full freight trains going past the board, and it's not feasible to accommodate all of these, so they leave it to the driver to determine how long the train is (generally this will be on their docket for the day) and thus how far after thy pass the board they can accellerate So when LUL trains pass on to "normal rail lines" (which they do at several places on the network) they stop abiding by LUL rules and start abiding by National Rail rules, one of which is all of the train must be cleared of the speed limit before accelerating You can easily tell which type of speed board you're passing by looking at the sign. LUL Signs are thin type black numbers on a white circular background with a thin black edge to the circle, they are in mph NR signs are of a thicker typeface with black numbers on a white circular background, with a thick red edge to the circle, they are in mph Around Ashford and St Pancras you will also see the NR type speed sings, but with white text on a black background. These indicate speed limits in km/h
