National Journal: Should Fuel Taxes Pay For Alternative Transportation?

From National Journal:

Transportation sources contribute 30 percent of U.S. emissions of greenhouse gases, and road congestion is a large and growing problem in many urban areas. Yet the Highway Trust Fund is facing a severe cash crunch, and state transportation departments are worried that there won't be enough money for highways and mass transit. Should the next surface transportation bill allow states and municipalities to use a greater share of scarce Trust Fund dollars on non-highway projects such as bike lanes and pedestrian walkways?