2004 Point CT

[PJW]

still a question for point 211 N>R: My question is about the standing time. I have read your paper particular in Time Value: LONGEST: TIME COMPLETELY TO STAND for Release of Overlap: berth TC: 200m Time:30s ; berth TC: 400m, Time: 45s.
Taking 136C(S) as example, berth TC is BK or BL, I think neither of their length can reach to 400m, seem only 200m. So I think maybe 30s here is much more reasonable. What about your view?

The common timer is on "BK or BL"; i.e. the two inputs are used as a combined track circuit for these purposes. The timer will start when the first of them becomes occupied and will expire after the quoted time provided that at least one of them has remained occupied ever since it started. The combined length is something like 806-293m so say approx 500m and therefore a time of a little more than 45sec is appropriate.