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Development of a dynamic route guidance system, SHARP (System for Highly Adaptive Route Planning), using blackboard system architecture.
| 题名： | Development of a dynamic route guidance system, SHARP (System for Highly Adaptive Route Planning), using blackboard system architecture. |
| 作者： | PARK-H (Sangmyung Univ, Seoul, South Korea); CHOI-J-U (Sangmyung Univ, Seoul, South Korea); RHO-J (Sangmyung Univ, Seoul, South Korea) |
| 关键词： | CONFERENCE-; 8525-; INTELLIGENT-TRANSPORT-SYSTEM; 8735-; ROUTE-GUIDANCE; 8771-; DRIVER-; 1772-; BEHAVIOUR-; 9001-; TRAFFIC-FLOW; 0671-; JOURNEY-TIME; 0697- |
| 摘要： | Cognitive studies show that human being's path planning is generally conducted through opportunistic planning processes in which optimal paths are iteratively and dynamically constructed according to the changes of the traffic conditions, rather than once determined before departure. The optimal path finding system in transportation should reflect the cognitive process of human being's planning to achieve efficient and useful results in real-world situation. In this research, for the implementation of the planning concept in ITS, a blackboard model is employed to reflect human being's planning processes into automatic path finding. The blackboard architecture typically consists of knowledge sources, controller, and blackboard. In this research, a prototype system, SHARP (System for Highly Adaptive Route Planning) is developed to implement the blackboard architecture in which knowledge sources are optimal path finding module (SPFM), travel time forecasting module (TTFM), and incident detecting module (IDM). In a series of experimental tests, reduction of total travel time was achieved: the travel time of optimal path provided by traditional approach is 28.142, while the travel time of SHARP is 17.884. Also, SHARP can guarantee the optimality of path by updating the optimal path during driving according to the changes of traffic situations. Thus, SHARP is a system that properly provides optimal paths in real world situations. (A*) For the covering abstract see ITRD E110327. |
| 总页数： | PROCEEDINGS OF 6TH WORLD CONGRESS ON INTELLIGENT TRANSPORT SYSTEMS (ITS), HELD TORONTO, CANADA, NOVEMBER 8-12, 1999. 1999. pp- |
| 报告类型： | 科技报告 |
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