the ecologicalРintegrity of the large-scale natural spaces, promoting the traffic concentration on the non-ecologically sensitive areas, increasing theРregional horizontal-permeability of works; (2)At the road section scale, setting the natural space habitats avoidance,Рmaintaining the continuity of important natural sites, breaking the traffic ecological bottleneck, reducing the environmental impact ofРroad traffic, and pensation of the ecological impacts of road construction. These strategies aim to provide some principlesРand methods for the sustainable road traffic planning which are based on the ecological rationality and in favor of biodiversityРconservation.РKey words:traffic engineering; planning strategies;road ecology;nature spaces;biodiversity conservation;ecological integration
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