计算机工程与应用 ›› 2007, Vol. 43 ›› Issue (9): 205-207.

• 工程与应用 • 上一篇    下一篇

智能交通中的高效最短路径搜索算法

叶青 陈闳中   

  1. 同济大学 上海同济大学计算机科学与工程系
  • 收稿日期:2006-07-19 修回日期:1900-01-01 出版日期:2007-03-21 发布日期:2007-03-21
  • 通讯作者: 叶青

Efficient Algorithm for Shortest-Path Searching in ITS

Qing Ye   

  • Received:2006-07-19 Revised:1900-01-01 Online:2007-03-21 Published:2007-03-21
  • Contact: Qing Ye

摘要: 文章针对智能交通系统中最短路径问题,提出了一种基于预处理剪枝的最短路径快速搜索算法。此算法在Dijkstra算法的基础上,利用预处理结果进行剪枝。实验证明,与传统算法相比,在保证最优解的情况下,使用本算法平均可使搜索空间平均降低94.8%,计算速度提高26倍。

Abstract: An efficient algorithm designed for shortest-path search in ITS environment is introduced. Based on Dijkstra’s algorithm, it speeds up the progressing by significantly reducing the search space according to the preprocessing result. Experimental study shows that this algorithm means to reduce the search space by 94.8% and speed the computation up to 26 times while simultaneously preserves the optimum.