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Allocation optimization of bicycle-sharing stations at scenic spots 被引量:5
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作者 郭唐仪 张平 +1 位作者 邵飞 刘英舜 《Journal of Central South University》 SCIE EI CAS 2014年第8期3396-3403,共8页
Bicycle-sharing system is considered as a green option to provide a better connection between scenic spots and nearby metro/bus stations. Allocating and optimizing the layout of bicycle-sharing system inside the sceni... Bicycle-sharing system is considered as a green option to provide a better connection between scenic spots and nearby metro/bus stations. Allocating and optimizing the layout of bicycle-sharing system inside the scenic spot and around its influencing area are focused on. It is found that the terrain, land use, nearby transport network and scenery point distribution have significant impact on the allocation of bicycle-sharing system. While the candidate bicycle-sharing stations installed at the inner scenic points, entrances/exits and metro stations are fixed, the ones installed at bus-stations and other passenger concentration buildings are adjustable. Aiming at minimizing the total cycling distance and overlapping rate, an optimization model is proposed and solved based on the idea of cluster concept and greedy heuristic. A revealed preference/stated preference (RP/SP) combined survey was conducted at Xuanwu Lake in Nanjing, China, to get an insight into the touring trip characteristics and bicycle-sharing tendency. The results reveal that 39.81% visitors accept a cycling distance of 1-3 km and 62.50% respondents think that the bicycle-sharing system should charge an appropriate fee. The sttrvey indicates that there is high possibility to carry out a bicycle-sharing system at Xuanwu Lake. Optimizing the allocation problem cluster by cluster rather than using an exhaustive search method significantly reduces the computing amount from O(2^43) to O(43 2). The 500 m-radius-coverage rate for the alternative optimized by 500 m-radius-cluster and 800 m-radius-cluster is 89.2% and 68.5%, respectively. The final layout scheme will provide decision makers engineering guidelines and theoretical support. 展开更多
关键词 bicycle-sharing allocation optimization scenic spot CLUSTER
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感受自然魅力——2002荷兰世界花卉园艺博览会见闻
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作者 谯德惠 《中国花卉园艺》 2002年第10期18-20,共3页
4月5日,2002荷兰世界花卉园艺博览会在荷兰阿姆斯特丹附近的哈勒姆(Haarlem)市隆重开幕,荷兰女王贝娅特丽克丝出席了开幕式,中国花卉协会会长江泽慧率领的中国代表团应邀出席了开幕式.
关键词 2002荷兰世界花卉园艺博览会 室内展区 置景区 室外展区
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