When speed limits increase, you have to wait for the entire train to enter the higher speed limit before you can speed up (don't want the back of the train derailing even though the front was fine!) The safety system is fitted at the front of the train, so when the limit increases, ACSES has no idea when the back of the train has reached the increased limit. Therefore, it will update immediately, leaving the driver to judge when the back of the train reaches the limit. When slowing down, however, speed limits come into force from the front of the train, so it's much easier (don't want the front to derail when the back was fine).
Are electronics counting the cars in some way? What is actually letting the loco know the rear car passed the speed indication sign? The Class 66 is a counter that half the time works, from signal to signal, but I have yet to see an EOTD on UK or German trains. That is mainly for the Air pipe unless it now has electrons to monitor the rear of the train, again those are used in NA/US & CN.
There is nothing. ACSES does not know how long the train is. This is why the ACSES display will increase the speed limit at the front of the train, instead of when the back of the train passes it.
I do understand, but yet when the rear passes that speed indication sign, you get the speed increase notification. Or is it seeing the next block and there is some info the train receives letting it know it is in the next block, which in turn is letting the train know "speed up"?
I have never seen ACSES wait for the rear of the train to pass a speed limit before showing the new speed limit in the game. Only when the front of the train passes it. I only have Boston Sprinter. Are you finding this behaviour on New York - Trenton? I can't test it on that route.
I have seen this on all routes and trains, while on ACSES it shows right away, that you still have to get the go-ahead to increase speed, correct, I have not played much of Boston sprinter and the use ACSES.
