Author(s)

G.M. Veca & L. Villanti

Abstract

Comparison between trolley-bus and tram vehicles: performances and consequent environmental impact G. M. Veca^ L. Villanti* IEEE Senior Member ^Dept of Electrical Engineering, University "La Sapienza" of Rome, Italy Abstract The Public Transportation System is now rediscovering the use of trams due to ever increasing pollution problems. The entire system transports from 2000 to 15000 p/hd, and uses either the right of way (ROW) or the light rail transit (LRT). Nevertheless a new generation of articulated electric trolley buses (ETB) are becoming an attractive option. The ETB is "bimodal", or rather, it has a double traction energy supply. Its engine-electric generator unit allows it to disconnect from the Overhead Catenary System (OCS) and continue operating as before. This paper compares an ETB transportation system, which uses vehicles holding 155 p, with the currently tram system used in Rome, which uses vehicles holding 180 or 260 p. Based on the same passenger-flow, this compar

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