jeffhergertSpeed also plays a part in how fast the signals seem to drop to red. The detection point is the same, but the faster the train the more of it gets past the signal before it changes.
Yep. The time is the same, and represets the time it takes for the signal logic (relay or otherwise) to register the occupation of the track, update surrounding signals, and possibly communicate it to the dispatcher display. There is also a small delay usually designed in to prevent momentary false detections from wreaking havoc. All of this will vary by installation and individual signal, but it will be a pretty consistent amount of time for the same signal, regardless of the train speed.
MidlandMikeMy understanding is that a hi-rail vehicle would not be detected by a signal circut. How would a hi-rail know if it was safe to pass a signal if it would not (approach) light?
To add to what BaltACD stated: Hy-rail vehicles are generally expected to behave as any train would. They cannot exceed the track speed limit, are required to obey Stop signals, etc.
JPS1You got it. Thanks for the explanation.
Good, I'm happy to help. If you have any other questions, feel free to ask. Someone can try to answer them. None of us knows everything, but 40 heads are usually better than one.
JovetTo add to what BaltACD stated: Hy-rail vehicles are generally expected to behave as any train would. They cannot exceed the track speed limit, are required to obey Stop signals, etc.
Hi-rail vehicles do not operate on any form of signal indication. They operate on their Track Car Authorities only. If they have a authority through a Control Point, their only obligation is to see that the route that is lined is the one that their authority authorizes. In the CSX CADS the dispatcher must line the switches for the route through a Control Point if the authority is issued through and beyond a Control Point before the authority is issued.
Maximum speed for a hi-rail on CSX is 40 MPH - I have seen photographs of what happens when higher speeds are attempted on curves - it isn't pretty.
Never too old to have a happy childhood!
BaltACDMaximum speed for a hi-rail on CSX is 40 MPH - I have seen photographs of what happens when higher speeds are attempted on curves - it isn't pretty.
We won't discuss switches...
I've never dumped a hirail on a switch, but I've seen it done.
Larry Resident Microferroequinologist (at least at my house) Everyone goes home; Safety begins with you My Opinion. Standard Disclaimers Apply. No Expiration Date Come ride the rails with me! There's one thing about humility - the moment you think you've got it, you've lost it...
tree68 BaltACD Maximum speed for a hi-rail on CSX is 40 MPH - I have seen photographs of what happens when higher speeds are attempted on curves - it isn't pretty. We won't discuss switches... I've never dumped a hirail on a switch, but I've seen it done.
BaltACD Maximum speed for a hi-rail on CSX is 40 MPH - I have seen photographs of what happens when higher speeds are attempted on curves - it isn't pretty.
Excess speed on a curve
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