跨江、跨河大桥交通量预测研究
2020-05-19郑建振谌垚原二普
郑建振 谌垚 原二普



摘 要:跨江、跨河大桥交通量预测需根据项目周边历年的交通量数据,找出交通量增长规律,通过建模、数据录入、模型标定、数据输出、反馈调整分析,推算出项目交通量,预测未来交通量的发展趋势,为项目建设的宏观决策提供依据。评价期内如果在项目直接影响范围内新增规划外的其他跨江、跨河通道,将对本项目交通量产生分流影响,影响到本项目的交通量规模乃至效益。本文以某黄河公路大桥及连接线项目交通量预测为例,分析影响项目交通的主要因素,对跨江、跨河大桥交通量特点和预测思路进行研究,以供相关人员参考。
关键词:跨江、跨河大桥;交通量;预测
中图分类号:U491.14文献标识码:A文章编号:1003-5168(2020)07-0142-03
Abstract: The traffic forecast of river-crossing and river-crossing bridges needs to find the traffic growth law based on the traffic volume data of the surrounding areas of the project over the past years, and calculate the project traffic volume through modeling, data entry, model calibration, data output, feedback adjustment analysis , Predict the development trend of future traffic volume, and provide a basis for macro decision-making of project construction. During the evaluation period, if other cross-river and cross-river channels outside the plan are added within the scope directly affected by the project, it will have a diversion impact on the traffic volume of the project, affecting the scale of the traffic volume and even the benefits of the project. This paper took the traffic forecast of a Yellow River Highway Bridge and the connecting line project as an example, analyzed the main factors affecting the traffic of the project, and studied the traffic volume characteristics and forecast ideas of the cross-river bridge. It can be used as a reference for related personnel.
Keywords: river crossing bridge;traffic volume;forecast
交通量預测是指在现有规划路网上构建模型,综合利用收集得到的高速公路、国省干道公路车辆通行数据、交通量观测数据和收集到的其他相关资料,通过数据录入、模型标定、数据输出、反馈调整分析,从而得到未来项目交通量的过程[1]。
1 预测方法和思路
1.1 宏观发展环境分析
根据区域自然行政区划、现有交通网络布局以及项目建成后对各地区的影响程度,把项目影响区域分为直接影响区和间接影响区[2]。
1.2 经济社会发展预测
采用定性分析和定量计算相结合的方法对项目影响区经济社会发展指标进行预测,最后结合两种分析结果,综合运用经济周期理论、类比分析方法和专家评估方法得出区域经济社会发展预测指标。……
