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A quick development of motoring poses, particularly in cities, a number of transportation challenges involving traffic flow and maintaining its safety. To ensure road safety in streets facing transportation challenges, different systems of traffic calming have been successively introduced aiming at improvement of living and safety conditions. Suburban districts and housing estates are having their traffic arrangement plans changed. Traffic calming zones (e.g. Woonerven, stille veje, zones 30, home zones) are intro...

Environmental compensation aimed at keeping bat flight paths open is a major environmental protection issue. The small mammals play a very important role in eliminating pests and insects, pollination and seed dispersal. New roads often sever the continuity of bat migration routes. Not only do bats have traditional migration routes, but also their winter habitats rarely change. Given the above, many countries use different solutions of sustainable civil engineering, geared towards maintaining free passage for bats ...