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分析公路建设项目可行性研究中诱增交通量常用的计算方法。建议采用公路建成前后车辆出行条件的变化来计算诱增的交通出行分布,进而计算出各OD小区诱增交通出行量。研究表明,基于重力模型的思想,借助TransCAD在路网建模、矩阵计算等方面的优势,及其提供的多种重力模型和标定软件包,为定量计算公路尤其是高速公路诱增交通量建立新的途径。计算结果符合公路诱增交通量的特点和发展规律,并与定性分析结论相吻合。
Analysis of Common Methods of Calculating Traffic Volume in Feasibility Study of Highway Construction Project. It is suggested that the distribution of induced traffic trips should be calculated by the change of vehicle travel conditions before and after the completion of the highway so as to calculate the traffic induced by each OD community. The research shows that based on the idea of gravity model, with TransCAD’s advantages in road network modeling and matrix calculation, and the various gravity models and calibration software packages provided by TransCAD, it is of great importance to quantitatively calculate the amount of traffic induced by highways New way. The calculated results are in accordance with the characteristics and development of traffic induced by highways and are consistent with the qualitative analysis.