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摘要: 结合路网的拓扑结构, 定义了用于确定指路标志的状态函数集, 给出了3个描述路网拓扑特征的交叉口函数: 邻近结点集、结点-弧段夹角集和连通结点集, 基于Dijkstra最短路径的思想, 运用交叉口函数建立了城镇指路标志的标识模型: 以待标识城镇为中心, 在城镇的影响区域内, 通过向外搜索交叉口邻近结点集来确定指路标志的设置, 并使每个结点上标识的路径都是最优的。实例分析表明, 该模型生成的指路标志, 能有效地指引道路使用者前往目的地。Abstract: The modeling method of inter-town guide signs based on road network topology was discussed, the concepts of guide sign items were proposed, and the state functions of guide signs were given.Three intersection functions, such as adjacent node set, node-arc angle set and connected node set, were presented, and based on the shortest path method proposed by Dijkstra, a road guide sign model was built by using the intersection functions.The main idea of the model was as follows: destination city was taken as searching center, road guide signs were deployed by searching the adjacent node set of intersection in the influential region of the city, every path designated by road guide signs was an optimal one.Example analysed result shows that the road guide signs created by the model can effectually guide road users to aims.
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Key words:
- traffic planning /
- intersection /
- road guide sign /
- road network topology /
- optimal path
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图 3 影响区域内指路标志的生成算法
Figure 3. Creation algorithm of road guide signs in influential region
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[1] GB 5768-1999, 道路交通标志和标线[S]. [2] Sheffi Y. Urban Transportation Networks: Equilibrium Analysis with Mathematical Programming Methods[M]. NJ: Prentice Hall, 1985. [3] 李友钦. 城镇指示标志布设之研究[D]. 台北: 淡江大学, 1997. [4] 杨久龄, 刘会学. GB 5768-1999道路交通标志和标线应用指南[M]. 北京: 中国标准出版社, 1999. [5] 齐华, 刘文熙. 建立结点上弧-弧拓扑关系的Qi算法[J]. 测绘学报, 1996, 25(3): 233-235. https://www.cnki.com.cn/Article/CJFDTOTAL-CHXB603.012.htmQi Hua, Liu Wen-xi. Qi algorithm for arc-to-arc topological relationship on vertices[J]. Acta Geodaetica et Cartographica Sinica, 1996, 25(3): 233-235. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-CHXB603.012.htm [6] 高云琼, 徐建刚, 唐文武. 同一结点上弧-弧拓扑关系生成的新算法[J]. 计算机应用研究, 2002, 19(4): 58-59. https://www.cnki.com.cn/Article/CJFDTOTAL-JSYJ200204019.htmGao Yun-qiong, Xu Jian-gang, Tang Wen-wu. A new algorithm for generation of arc-to-arc topological relationship on the same vertices[J]. Application Research of Computers, 2002, 19(4): 58-59. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-JSYJ200204019.htm [7] 罗跃军, 李霖, 朱敦尧, 等. 车辆导航系统中最短路径计算的数学模型[J]. 昆明理工大学学报: 理工版, 2004, 29(3): 106-109. https://www.cnki.com.cn/Article/CJFDTOTAL-KMLG200403027.htmLuo Yue-jun, Li Lin, Zhu Dun-yao, et al. Data model in the shortest-path algorithm of vehicle navigation system[J]. Journal of Kunming University of Science and Technology: Science and Technology, 2004, 29(3): 106-109. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-KMLG200403027.htm [8] Dijkstra E W. A note on two problems in connection with graphs[J]. Numeriche Mathematik, 1959, 1(1): 269-271. doi: 10.1007/BF01386390 [9] 张国强, 晏克非. 城市道路网络交通特性仿真模型及最短路径的算法[J]. 交通运输工程学报, 2002, 2(3): 60-62. http://transport.chd.edu.cn/article/id/200203013Zhang Guo-qiang, Yan Ke-fei. Simulation model based on characteristics of urban road network and its shortest path algorithm[J]. Journal of Traffic and Transportation Engineering, 2002, 2(3): 60-62. (in Chinese) http://transport.chd.edu.cn/article/id/200203013 [10] 张渭军, 王华. 城市道路最短路径的Dijkstra算法优化[J]. 长安大学学报: 自然科学版, 2005, 25(6): 62-65. https://www.cnki.com.cn/Article/CJFDTOTAL-XAGL200506014.htmZhang Wei-jun, Wang Hua. Optimization Dijkstra algorithm for shortest path of urban traffic net[J]. Journal of Chang'an University: Natural Science Edition, 2005, 25(6): 62-65. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-XAGL200506014.htm [11] 胡大伟, 朱志强, 胡勇. 车辆路径问题的模拟退火算法[J]. 中国公路学报, 2006, 19(4): 123-126. https://www.cnki.com.cn/Article/CJFDTOTAL-ZGGL200604022.htmHu Da-wei, Zhu Zhi-qiang, Hu Yong. Simulated annealing algorithm for vehicle routing problem[J]. China Journal of Highway and Transport, 2006, 19(4): 123-126. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-ZGGL200604022.htm [12] 王丰元, 潘福全, 张丽霞, 等. 基于交通限制的路网最优路径算法[J]. 交通运输工程学报, 2005, 5(1): 92-95. http://transport.chd.edu.cn/article/id/200501022Wang Feng-yuan, Pan Fu-quan, Zhang Li-xia, et al. Optimal path algorithm of road network with traffic restriction[J]. Journal of Traffic and Transportation Engineering, 2005, 5(1): 92-95. (in Chinese) http://transport.chd.edu.cn/article/id/200501022 -
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