What are the benefits of asphalt pavements environmentally and economically?
Asphalt is America’s backbone.
There are over 2.6 million miles of paved roads across the U.S. Over 94% of these roads are surfaced with asphalt. 85% of both airfields and the nation's parking lots are paved with asphalt.
What is a perpetual pavement?
A perpetual pavement is an asphalt pavement that has been designed to be able to be maintained over an extended period of time without the need for demolition or replacement. The pavement is constructed in layers, with each one serving a specific purpose. The top layer can be resurfaced using a process called milling and a new layer placed on top known as an asphalt overlay. The asphalt overlay performs just as well as a newly paved surface and saves a significant amount of economic and environmental resources. Engineering studies have been conducted across multiple states showing such pavements have lasted up to 40 years without signs of structural failure.
- The smoother the asphalt pavement is, the higher fuel efficiency a vehicle has traveling on it.
- Deicing chemicals can be reduced during winter on porous asphalt by up to 75 - 100 percent.
- Porous asphalt allows for stormwater to drain in an environmentally friendly manner.
- Studies show that neither asphalt pavement or reclaimed pavement leach petroleum.