NIce

I'm the developer of the 3D CAB , the ATC limit screen it work like the Japanese ATC applicated on the game.
I don't know if you know a bit of how this system work on OpenBVE
Track.Sta Name; ArrivalTime; DepartureTime; PassAlarm; Doors; ForcedRedSignal; System; ArrivalSound; StopDuration; PassengerRatio; DepartureSound; TimetableIndex
This is a example of the formula for the station . this is an example as may you know to could work the ATC on OpenBVE
▸ Available options for System:
ATS or 0: ATS should be used from this station on. The following track is not be equipped with ATC.
ATC or 1: ATC should be used from this station on. The following track is equipped with ATC.
as may you know to work with ATC is just not only give the "1" value on "System" parameter. You must apply limits on entire Route
example:
25,.Sta EXAMPLE; 12.519; 12.519 ; ; ; ; 1; ; 15; 75 ; ;
50,.Limit 100
500,.Limit 50
1000,.Limit 100
http://www.bveklub.hu/developing/object_animated.html#functionsScroll down and see the pluginState[271] Meaning
---------- On Real Train ----------------
R = 15 mph = 24 km/h
L = 30 mph = 48 km/h
M = 45 mph = 72 km/h
N = 90 mph = 144 km/h
Just remember you must use the Limit on Kmph and not on mph
Japanese ATC System have a top speed of 120 km/h it's the top
------------ On my Train ---------------
R = 0 km/h - 15 km/h - 25 km/h < ON 3D CAB
L = 45 km/h - 55 km/h
M = 65 km/h - 75 km/h - 90 km/h - 100 km/h
N = 110 km/h - 120 km/h
You must use those limits, with more sense it's possible to use just "[(R)25 km/h] - [(L)45 km/h] - [(M)75 km/h] - [(N)120 km/h]
if you use more than 120km/h OpenBVE ATC Plugin can't handle it and "N" will dissapear.