Increase of transportation demand is a worldwide trend both in developed and developing countries, and especially, road transportation becomes the dominant and most important mode. On the other hand, it brought about various environmental issues as well as energy security issues raised by increasing energy consumption. And to solve these issues, various measures ranging from new technologies, reconstruction of infrastructure, demand control to economic and policy measures, are widely pursued among the world. This paper discusses the current issues and countermeasures as well as near-term future prospects, focusing on innovative technical options.
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