by Mattliverpool
I railfan at an Amtrak station in Syracuse, NY. In front of the station is a signal block. This block has seven signals. Two, Two then three. I have a few questions.
1. When a train approaches, then go on. When does these signals become active? A mile or is it closer? Soon as the train passes, they go off. How does this work, automated?
2. What does a flashing green or amber signal mean?
3. What I find odd, is when a train comes from the other way, they then come on as the train is underneath. Isn't this a safety concern? Shouldn't those signals come on before the train gets that close?
Matt
1. When a train approaches, then go on. When does these signals become active? A mile or is it closer? Soon as the train passes, they go off. How does this work, automated?
2. What does a flashing green or amber signal mean?
3. What I find odd, is when a train comes from the other way, they then come on as the train is underneath. Isn't this a safety concern? Shouldn't those signals come on before the train gets that close?
Matt