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Tag Archives: bus
Why is passenger rail so damned inefficient?
[ This is about passenger rail, not freight rail, which is incredibly efficient. Freight rail is efficient because to reduce aerodynamic drag and diesel fuel use (USDOT 2008), they travel on average only 23 miles per hour (to reduce aerodynamic … Continue reading
Posted in Mass Transit, Railroads, Transportation
Tagged auto, bus, mass transit, passenger, rail
4 Comments
Most energy efficient: passenger bus, rail, or auto?
Preface. Weight reduces energy efficiency, so one way to make transportation more efficient is to light-weight rail cars, buses, trucks, and cars. For every 10% reduction in weight, up to 7.6% more fuel efficiency can be gained (Joost 2012). While … Continue reading
Posted in Automobiles, Mass Transit, Railroads
Tagged auto, bus, car, efficiency, energy, mass transit, passenger, rail
Comments Off on Most energy efficient: passenger bus, rail, or auto?