"This analysis shows that it would be almost impossible to attempt to maintain a constant congestion level with road construction only. Over the past two decades, only about 50 percent of the needed mileage was actually added. This means that it would require at least twice the level of current-day road expansion funding to attempt this road construction strategy. An even larger problem would be to find suitable roads that can be widened, or areas where roads can be added, year after year. Most urban areas are pursuing a range of congestion management strategies, with road widening or construction being one of them." "This analysis shows that it would be almost impossible to attempt to maintain a constant congestion level with road construction only. Over the past two decades, only about 50 percent of the needed mileage was actually added. This means that it would require at least twice the level of current-day road expansion funding to attempt this road construction strategy. An even larger problem would be to find suitable roads that can be widened, or areas where roads can be added, year after year. Most urban areas are pursuing a range of congestion management strategies, with road widening or construction being one of them."

External Links:

More Information: mobility.tamu.edu/ums/report