I work under acses territory everyday. I don't really have a problem with it. If you cut your cabs out, your acses will indeed stay active,and if you cut your acses out, your cab signals still stay active. ACSES is a good system for enforcing speed limits or temporary speed restrictions. The system is to complex to implement it on the NEC without seriously slowing down service. For instance,many stations are located next to interlocking signals such as Trenton and many times you will have a stop signal displayed at the end of the platform to allow something in front to cross.most engineers will stop close to the signal but under acses if your approaching a stop signal, you will have to be stopped generally about a 1000 feet before the signal. The system isn't fool proof. A few years ago an acela blew a stop signal at Hamilton going west . It was snowing and when the cabs dropped he put the brakes in full service and even got the acses stop penalty and still went thru the stop signal. I'm not afraid of change in the industry but not when it comes in the form of rough train handling or degradation of service. Unfortunately I have a feeling acses is probably the lesser of all ptc evils.