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</html><description>The technology for charging drivers for their use of the roads based on the miles they actually drive keeps getting closer to maturity. This article describes some pioneering research at Oregon State University. Hybrid engines may before long create a crisis for state highway maintenance funding. By-the-mile fees may then replace by-the-gallon taxes. Along the [&hellip;]</description><thumbnail_url>http://www.sightline.org/wp-content/images/legacy/energy-sm.jpg</thumbnail_url></oembed>
