There has been much interest in recent years in alternative forms of transportation that are more sustainable than technology based on the internal combustion engine. Newly developed technologies, such as Plug-in Hybrid Electric Vehicles (PHEV) and Battery Electric Vehicles (BEV), promise to greatly reduce the emission of greenhouse gases. But BEVs have a limited driving range before they must be recharged, which makes them less attractive to the buying public. It is known that the average daily driving distance is less than 40 miles and that the range of a fully charged BEV is over 80 miles. But this generic statistic does not provide enough information about how the vehicle is operated. Understanding individual travel behavior is crucial for promoting Battery Electric Vehicles (BEVs).