Abstract
The total energy consumption of three urban rapid rail systems is analyzed to obtain a detailed breakdown of the traction and station contributions. The systems chosen, PATH, PATCO and BART, span a wide range of characteristics representing age, service region and size. The primary data source for the analysis is monthly bills, whose disaggregation determines the ultimate breakdown of the total energy consumption for each system. For one system, traction energy is separated into propulsion and dead-heading contributions, with the result that a large fraction is used to keep the cars “hot”. For the same system, station lighting accounts for most of the energy use by the stations; for another, heating can double station energy use during cold weather. For the cold weather systems, total energy consumption correlates well with climatological data.
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