The debate has waged on for years, which is better – asphalt or concrete? And as gas prices soar, some are making claims as to which material offers better gas mileage.
When it comes to gas mileage, neither asphalt nor concrete has been proven to offer better consumption. In fact, while some organizations claim that one material may offer less resistance, there are actually several factors that would have to be studied to offer conclusive results; these include difference in traffic flow, terrain, road surface , tire inflation and even driver behavior.
In the end, pavement roughness is ultimately responsible for difference in vehicle fuel consumption – so potholes are the largest problem. Americans burn about 175 billion gallons of gasoline driving about 3 trillion miles per year. According to www.AsphaltRoads.org, if roadways were only slightly smoother, we could reduce annual fuel consumption by up to 10%. Overall there is a potential for saving about 7 billion gallons of fuel annually, which would be the equivalent of taking 10 million vehicles off the road!