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| Re: Second Ave Alignment Change (637666) | |||
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Re: Second Ave Alignment Change |
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Posted by Sand Box John on Sat Jun 21 22:22:58 2008, in response to Re: Second Ave Alignment Change, posted by trainsarefun on Sat Jun 21 21:54:31 2008. I'm not quite following.With bi-directional signaling no train can enter the segment of track where a train is traveling against the normal direction of traffic from beyond the next interlocking. This how WMATA single tracks around stalled trains and segments that are closed for scheduled maintenance. Trains run at normal speed against the normal direction of traffic with their bi-directional signaling system. John in the sand box of Maryland's eastern shore. |
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