占道作业区平面指标对市政道路通行能力的影响与分级适应性对策研究

Research on Impact of Planar Indicators of Road-Occupying Operation Areas on Traffic Capacity of Municipal Roads and Hierarchical Adaptive Countermeasures

摘要:

城市道路占道作业作为城市建设和维护中的临时交通组织方式，常因占用机动车道、非机动车道及人行道空间，直接影响道路通行能力与交通安全。针对上述问题，首先从车道减少、圆曲线半径不足、车道宽度不足、慢行系统考量不足等多方面分析了占道作业区对通行能力的影响机理，并揭示了多指标之间的非线性耦合放大效应。在此基础上，提出了基于“交通需求-空间约束-经济成本”的分级适应性设计对策。研究成果可为占道作业区科学的交通组织提供理论依据与实践参考，有助于缓解交通拥堵、提升路网运行效率、降低安全隐患。

Abstract:

Urban road occupation operations, as a temporary traffic organization method in urban construction and maintenance, often directly affect road traffic capacity and traffic safety by occupying the space of motor vehicle lanes, non-motored vehicle lanes and sidewalks. To address the above issues, the influence mechanism of the road-occupying operation area on the traffic capacity is first analyzed from multiple aspects of lane reduction, insufficient radius of the circular curve, insufficient lane width, and insufficient consideration of the slow traffic system. And the non-linear coupling and amplification effects among these multiple indicators are revealed. On this basis, a hierarchical adaptive design countermeasure based on “traffic demand - spatial constraints - economic cost” is proposed. The research results can provide a theoretical basis and practical reference for the scientific organization of traffic in road-occupying operation areas, helping relieve the traffic congestion, improve the operational efficiency of the road network and reduce the potential safety hazards.