Rising fuel prices have led to significant increases in costs for public transit agencies. A possible benefit from higher gas prices, though, is an increase in public transit ridership. This study estimates the effects of gas prices on bus ridership by employing a variety of models. Since the price of...

The overall objective was to determine the extent that economies of size and density are available to short line railroads. Size economies are limited for short line railroads. For example, doubling the size of the network (from 56 to 129 miles) decreases costs by only 6.9 percent. The elasticity of...