Full metadata record
|dc.contributor||Department of Computing||en_US|
|dc.creator||Li, Pui Hang||-|
|dc.publisher||Hong Kong Polytechnic University||-|
|dc.rights||All rights reserved||en_US|
|dc.title||Historical traffic-tolerant paths in road networks||en_US|
|dcterms.abstract||Nowadays, with the extensive installation of roadside sensors and the advance-ment of mobile technology, historic traffic information is widely collected. It is valuable in transportation analysis and planning, e.g., evaluating the reliability of routes for representative source-destination pairs. Also, it can be utilized to provide efficient and effective route-search services. In view of these applications, this thesis proposes the traffic-tolerant path (TTP) problem in road networks. The problem takes an integer k, a source-destination (SD) pair, and historic traffic information as input, and returns k paths that minimize the aggregate historic travel time. Unlike the shortest path problem, the TTP problem has a combinatorial search space that renders the optimal solution expensive to com-pute. First, we prove the NP-hardness of the TTP problem. Second, we propose an exact algorithm with effective pruning rules to reduce the search time. Third, we develop an anytime heuristic algorithm that makes 'best-effort' to find a low-cost solution within a given time limit. Extensive experiments on real and synthetic traffic data demonstrate the effectiveness of TTPs and the efficiency of our proposed algorithms.||en_US|
|dcterms.extent||xvi, 69 pages : illustrations (some color) ; 30 cm||en_US|
|dcterms.isPartOf||PolyU Electronic Theses||en_US|
|dcterms.LCSH||Choice of transportation -- Mathematical models.||en_US|
|dcterms.LCSH||Hong Kong Polytechnic University -- Dissertations||en_US|
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