26-07-2013, 08:08 AM
Thank-you, that is very encouraging at this stage.
You are right that my knowledge of semaphore signalling is sketchy, but also I'm not sure of how SODs are calculated and used - in my role I only a scheme plan with the TPWS already placed, and Design Logs rarely show the detail.
When I looked at the 2006 paper, I found few appealing questions and this looked like a "least worst" option, so I have surprised myself.
You are right that my knowledge of semaphore signalling is sketchy, but also I'm not sure of how SODs are calculated and used - in my role I only a scheme plan with the TPWS already placed, and Design Logs rarely show the detail.
When I looked at the 2006 paper, I found few appealing questions and this looked like a "least worst" option, so I have surprised myself.