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COST FUNCTIONS FOR OPTIMIZING HIGHWAY ALIGNMENTS.
| 题名： | COST FUNCTIONS FOR OPTIMIZING HIGHWAY ALIGNMENTS. |
| 作者： | Jong-J-C; Schonfeld-P |
| 关键词： | ALIGNMENT-; ALTERNATIVES-ANALYSIS; COSTS-; HIGHWAY-DESIGN; OPTIMIZATION-; RURAL-HIGHWAYS; TWO-LANE-HIGHWAYS |
| 摘要： | Optimizing highway alignments through complex environments is a difficult problem. Optimal alignment is influenced by many factors and should be based on tradeoffs among various supplier and user cost components. Previous works on alignment optimization usually have neglected some important components of the total cost function that should influence the optimal solution. The formulations of different cost components for two-lane rural highways are presented. The proposed cost functions are based on the geometric features of both horizontal and vertical alignments. The cost formulations can be employed in models for simultaneously optimizing three-dimensional alignments. Possible methods for solving such optimization problems are provided. A numerical example also is presented to illustrate the optimization of three-dimensional alignments with the proposed cost functions. |
| 总页数： | Transportation Research Record. 1999. (1659) pp58-67 (2 Fig., 2 Tab., 24 Ref.) |
| 报告类型： | 科技报告 |
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