"Véhicules automobiles Aspect de l'environnement États-Unis." . . "Transport per carretera." . . "États-Unis." . . "Research and Technology Coordinating Committee (É.-U.)" . . "Vejtrafik" . . "Decision making." . . "Forurening" . . . . . . . . . . "Clean air and highway transportation : mandates, challenges, and research opportunities" . "Clean air and highway transportation : mandates, challenges, and research opportunities"@en . "Clean air and highway transportation mandates, challenges, and research opportunities"@en . . . . "Clean, air and highway transportation : mandates, challenges, and research opportunities" . . . . "This report considers specific research needs relating to surface transportation and air quality. The greatest immediate need of transportation policy makers and administrators for environmental information and analysis is probably in support of programs for complying with federal clean air regulations. Water quality, noise, and land use are environmental concerns linked to transportation, and these issues will be important considerations in transportation policy making in the future."@en . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "Aire Contaminació Estats Units d'Amèrica." . . "Compliance." . . "Automobiles Moteurs Gaz d'échappement Aspect de l'environnement États-Unis." . . "Air Pollution États-Unis." . . "Regulatory reform." . . "National Research Council (É.-U.). Transportation Research Board." . . "Air Qualité Gestion États-Unis." . . "Transport Aspect de l'environnement." . .