Indirect transportation energy. Journal of Transportation Engineering.

Levinson, Herbert S ...[et al.].

1984

36
SEPARATA

Construction, maintenance, and operation of transportation infraestructure and vehicles represent a substantial energy investment. This indirect energy consumption per vehicle kilometer was estimated for auto, bus and rail transit through an energy investment analysis. Initially, total construction and manufacturing energy were converted to annual energy by assuming a service life. The annual operations and maintenance energy were added to this amount kilometer was then derived based on observed levels of traffic on each type of road and transit facility. Finally, the vehicle manufacturing energy was added to obtain a grand total estimate of the megajoules per vehicle kilometer. The resulting modal energy estimates in megajoules per vehicle kilometer were: freeways, 1368; arterial streets, 1.525; 2-lane roads, 1582; trolley buses, 1503; diesel buses, 1568; at-grade street car, 10.778; commuter rail, 14.154, and subway, 22.636. The indirect energy associated with rail transit facilities is sizable both in absolute terms, and as a proportion of the total energy consumed. It should be carefully estimated and must be included in modal energy intensity.

Presenta tbls. y diagrs.

CANADA; VEHICULOS AUTOMOTORES; CONSUMO DE HIDROCARBUROS; SECTOR TRANSPORTE;