The mechanics of trolley buses. Trolley buses, having electric motors, are more effective than diesel engines in providing torque at start-up, an advantage for climbing steep hills. Unlike combustion engines, electric motors draw power from a central power plant and can be overloaded for short periods without damaging them.
DADOS FORNECIDOS PELA ESCO (COMISSÃO EUROPEIA) E O*NET (DEPARTAMENTO DO TRABALHO DOS EUA)