Start-up airlines have safety records comparable to older airlines. EPA models may slightly understate the quantity of urban air pollution. Eleven measures are evaluated.
Reformulated fuels appear to have the biggest impact.
Diesel fueled buses pollute less than gasoline fueled buses. The provisions of the pending transportation finance legislation are outlined. Larger aggregates may make better pavements. Highlights of the last year's privatization activity are shown. More cost-effective alternatives to Amtrak are proposed.