This Transportation Research Record contains 24 papers that examine energy and environmental concerns. Among the specific topics examined are the following: fuel economy and automobile safety; fuel economy and policy implications; hybrid and diesel vehicles; transit bus emissions models; diesel truck idling emissions; Global Positioning System applications in emissions research; on-road vehicle test programs for vehicle emissions models development; urban freight vehicles emission factors; MOBILE6.2; hydrogen acceptance; bioengineered stream bank erosion control structures; teamwork for joint delivery of transportation and environmental protection needs; toll facilities emission modeling; traffic noise models; reducing greenhouse gas emissions with high-volume fly ash concrete; an ecosystem enhancement program; and pile driving and barotrauma effects. (Author/publisher)
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