>>1210629Why Trolleybuses Declined So Suddenly
Pt.1
Comparison w/ Trams
Note: As there are numerous variations of light-rail & tram tech, the disadvantages may be applicable only w/ a specific design or tech
Difficulties w/ platform loading - Implementation of a level platform loading w/ minimal gap, either at the design stage or afterwards, is easier & less costly to implement w/ rail vehicles.
Higher rolling resistance - Rubber-tired vehicles generally have more rolling resistance than steel wheels, which decreases energy efficiency.
Less efficient use of right-of-way - Lanes must be wider for unguided buses than streetcars, as unguided buses can drift side-to-side. The use of guidance rail allows trams running in parallel lines to pass closer together than drivers could safely steer.
More control required - Trolleybuses must be driven like the motorbuses, requiring directional control by the driver.
