14-11-2011, 03:14 PM
Hi Signalling Professional:
I have questions regarding the calculation for signal spacing and headway and I would like to correct myself if I am wrong.
Situation:
Line speed is 100km/h, max train speed is 120km/h, required headway 3min
My question is which speed of the above do I use for calculating the signal spacing and headway.
My understanding is that:
a) when calculating the signal spacing use line speed 100km/h (that's the speed allowed to run the train normally)
b) when calculating what signalling system to be used for the railway system to suit the required headway uses the train speed (120km/h) that's the speed the train could possibly run on the line.
Maybe this is simple question, but am I right for this ?
thanks
I have questions regarding the calculation for signal spacing and headway and I would like to correct myself if I am wrong.
Situation:
Line speed is 100km/h, max train speed is 120km/h, required headway 3min
My question is which speed of the above do I use for calculating the signal spacing and headway.
My understanding is that:
a) when calculating the signal spacing use line speed 100km/h (that's the speed allowed to run the train normally)
b) when calculating what signalling system to be used for the railway system to suit the required headway uses the train speed (120km/h) that's the speed the train could possibly run on the line.
Maybe this is simple question, but am I right for this ?
thanks