10-19-2018, 01:40 PM
(10-19-2018, 12:31 PM)Bob_McBob Wrote: How long are the signals and arms going to be stopping traffic when a train goes through a level crossing, or traffic lights at an intersection? What is the legal minimum and what is typical?
I don't know what's legally mandated by Transport Canada, but when I was listening to the ION radio during timing tests over the summer they seemed to be averaging around 25 seconds in advance, and 5 seconds after. They were still tweaking things during that process (some were WAY more or less initially), so without waiting around at all the gates with a stopwatch I can't say what they eventually dialed in to.
Per https://en.wikipedia.org/wiki/Grade_cros...Technology, the detection circuits consider both the train's position and speed in order to estimate its arrival time.
...K