The with PTC, the EM systems can “see” the signals coming up. They will get you down to 30 mph for the Approach signal before a Stop or signal requiring restricted speed. Depending on EMS’ braking calculations, it will require the engineer to take manual control either at, or before the Approach. It depends on how long the block is from the Approach to the Stop/RS signal.
EMS assumes the train is going to go right up to the signal. Most of the time, that’s not possible if you want to stay off crossings. So you have to take control earlier. That’s the nicest thing about PTC. You can “see” 5 miles ahead (PTC can see 6 miles ahead but only displays 5 on the screen.) and can pick the best place to stop if you need to.
Ok OP so where’s your proof of this? Cus I haven’t heard or seen anything about this at all.
the only thing is that if you don’t have TO on certain trains and subdivisions then you have a 0/40 Restriction which is you can only use power below 40 mph to go faster than 40 you have to either coast or be in dynos.