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COMPUTATIONAL ISSUES IN INCREASING SPATIAL PRECISION OF TRAFFIC ASSIGNMENTS.
| 题名： | COMPUTATIONAL ISSUES IN INCREASING SPATIAL PRECISION OF TRAFFIC ASSIGNMENTS. |
| 作者： | Horowitz-AJ |
| 关键词： | Area-spread-assignment; Computation-time; Fredericton-New-Brunswick; Links-Networks; Nodes-Networks; Racine-Wisconsin; Spatial-precision; Traffic-assignment; Zone-boundaries-Networks |
| 摘要： | The practical feasibility is demonstrated of a traffic assignment method, dubbed area-spread assignment, that incorporates information on the spatial relationships between nodes, links, and zone boundaries. Tests of area-spread assignment were performed on networks from Fredericton, New Brunswick, and Racine, Wisconsin. To eliminate the effect of errors from other model steps in the tests, comparisons were made with a detailed network in Fredericton that contained all streets in the city and extremely small zones. The tests indicated that there is a substantial difference between area-spread assignment and a traditional assignment using centroid connectors. Area-spread assignment did a better job of replicating volumes on the detailed network, although computation times were much longer. |
| 总页数： | Transportation Research Record. 2001. (1777) pp68-74 (3 Fig., 5 Tab., 11 Ref.) |
| 报告类型： | 科技报告 |
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