As the holiday travel season begins, Becky Krystal reminisces on rest stops encountered along family road trips and observes that "stops are evolving from small, flypaper-plastered restrooms into airy, high-tech travel plazas and welcome centers."
Nov 20, 2012 The Washington Post
<p>Asphalt is a byproduct of oil production, and so is getting more expensive along with rising oil costs. A $5 million research project is looking for greener solutions.</p>
Jun 2, 2008 CNET News