- Highway Trust Fund is funded by an 18 cents per gallon gas tax.
- The gas tax in America has not been raised for 20 years.
- The tax no longer brings in enough money for the current pace of construction.
- People are driving less and people are driving more fuel-efficient cars.
Traffic on Bay Area Bridges Increase Over Past Five Years” and getting worse
A look at the number of vehicles crossing each of four Bay Area bridges during the morning commute in 2010, 2014 and 2015.