Research in the US is considering the real cost of the requirement to widen roads for new development. The policy and thinking by planners and engineers is that development creates car trips that must be accommodated with more asphalt. This occurs even when traffic num...

REUTERS/Mike Blake

The University of California, Berkeley recently surveyed members of the car2go car sharing service to assess whether it has changed their driving habits and car ownership rates. They found that each shared car2go vehicle removed as many as 11 private...