Dear Colleagues,

Currently, it is necessary to deal with Road Traffic Safety in close cooperation with the environmental capacity of roads. The whole process must be seen in the holistic synergy of sustainable preparation, construction, and operation of individual elements of the transport process.  The minimally 4-subsystem holistic approach driver–vehicle–road/pavement-sustainability development should be considered.  From the mentioned fact, it is clear that the given Special Issue is an extremely interdisciplinary topic, in which traffic psychologists, car manufacturers, designers and road managers, environmental authorities, and health departments participate. From the perspective of Road Traffic Safety, the limiting factors are above all skid resistance of wearing course, pavement roughness, the presence of water on the road, and the driver's ability to make the right decision. From a geometric point of view, it is important to objectify morphology of the pavement surface, which is divided into four levels (micro-, macro-, mega-texture, and unevenness). However, it should be kept in mind that increasing safety, for example through road retarders, can lead to a deterioration of the environment (noise, dust, vibrations) of residents around city roads, thereby reducing the Pavement Environmental Capacity. Pavement Environmental Capacity represents such a state of roadway operability, assessed through friction, transverse and longitudinal unevenness, surface condition (repairs, voids, lightness, reflectivity), in which the established environmental quality indicators are not exceeded. Individual objects and parts of roads play an important role from the aspect of traffic safety, especially intersections, bridges, and tunnels, which need to be paid extra attention.

Prof. Dr. Martin Decky
Dr. Dušan Jandačka
Guest Editors

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• road traffic safety
• environmental capacity
• holistic approach
• driver–vehicle–pavement-sustainability
• traffic accidents
• noise and particulate matter polutations
• pavement unevenness and friction
• traffic and health psychology