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 [quote]QUOTE: Another thought: How many passenger terminals have a convenient and efficient infrastructure to either "run around" power or to "wye" a complete consist in a timely manner? --Hence, push-pull.[/quote] I guess that could be a reason why the local railways here havent ever really needed push-pull trains. At the main station here in Melbourne, all platforms that handle commuter trains that arent EMU types, are stub ended and arranged with a platform track, an escape or runaround track, followed by the next platform track. Cross overs connect both platform tracks to the runaround track at various points. Since all diesel commuter trains are either DMU's (RDC's) or powered by locos that can run in either direction its a simple matter of running around the trains and then recoupling. Not sure if it can be found anywhere in the US but this particular station has fewer platforms, but each platform is longer with multiple crossovers to the middle track. In this way one platform can hold up to three seperate trains with the trains behind able to depart before the train in front by using a crossover and departing the station via the runaround track. The only times in my experience of train travel where a push pull operation occurs here is during the evening peak when 2 complete trains a coupled together with the 2 conventional locomotives on either end both powering the train.
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