A trolley bus is an electric bus that draws power from overhead wires using spring-loaded trolley poles. Unlike trams or streetcars, it does not run on tracks, allowing flexibility in urban environments.

Trolley buses connect to overhead electrical wires via roof-mounted poles, providing a continuous power source. This eliminates the need for onboard fuel, reducing operational costs and emissions.

The speed of a trolley bus depends on the model and road conditions. Most modern trolley buses reach speeds of 40 to 50 mph (64 to 80 km/h), similar to conventional diesel buses.

The cost of a new trolley bus ranges from $700,000 to $1.2 million, depending on the manufacturer, battery capacity, and additional features. Operating costs can be 30% to 50% lower than diesel buses due to savings on fuel and maintenance. The price of a used trolley bus varies based on factors such as age, mileage, and condition. Used models can start at $200,000 to $500,000, with older units sometimes available for under $150,000. The cost largely depends on battery life (for modern electric trolley buses), general wear and tear, and any required refurbishments.

Yes, trolley buses produce zero direct emissions, significantly reducing urban air pollution. A diesel bus emits approximately 2.7 kg of CO₂ per mile, while a trolley bus, depending on the electricity source, can lower emissions by up to 80%.

Lower emissions: They run on electricity, reducing pollution. Quieter operation: Noise levels are lower than diesel buses. Cost savings: Electricity is cheaper than diesel, leading to 30% to 50% lower fuel costs. Infrastructure longevity: Overhead wires last 40+ years, while trolley buses have a lifespan of 15 to 20 years. Reliable service: Continuous power supply ensures fewer delays compared to battery-electric buses.