Author(s)

F. Kehagia & G. Tsohos

Abstract

Transport is essential for the functioning of modern societies. A well-developed transport system should enable the free movement of goods, services and people. Nevertheless, the drastic increase in transport demand and in particular the great need for road transport has resulted in major environmental degradation in the form of air pollution, global warming, noise and safety. Among them, the fast growing consumption of energy and production of greenhouse gases possess a significant position. In highway and environmental engineering direct relationships have been developed to correlate vehicle emissions and speed, referring separately to every type of emission. From the aspect of innovation in highway engineering networks, a consistent high speed is a key element for road operating quality. A high level of service can be ach

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