基于时空一体化的K型交叉口交通组织精细化设计  

Refined Design of Traffic Organization of K-Type Intersection Based on Spatiotemporal Integration

作　　者：王韩麒 宛岩 范新科 范潇莹 徐宗亮 WANG Hanqi;WAN Yan;FAN Xinke;FAN Xiaoying;XU Zongliang(Ningbo Ninggong Traffic Engineering Design and Consulting Co.Ltd,Ningbo 315211,China;School of Civil and Transportation Engineering,Ningbo University of Technology,Ningbo 315211,China)

机构地区：[1]宁波宁工交通工程设计咨询有限公司,宁波315211 [2]宁波工程学院建筑与交通工程学院,宁波315211

出　　处：《交通工程》2025年第4期55-60,72,共7页Journal of Transportation Engineering

基　　金：浙江省建设厅2024年建设科研项目(2024K296)。

摘　　要：为消除K型交叉口的交通安全隐患,提高交叉口通行效率,以南山路—东门路—城基路交叉口为例,分析K型交叉口的特征及存在问题,运用时空一体化的理念对K型交叉口进行交通组织精细化设计,将畸形交叉口规则化、合理化,同时配合智能科技手段对K型交叉口进行合理的管控。结果表明,优化后的交叉口交通冲突有效减少,行车轨迹更加清晰,其中平峰时段交叉口的饱和度由0.38下降到0.35,车均延误时间由22.1 s下降为19.3 s,平均停车次数由21次减少为16次;晚高峰时段交叉口的饱和度由0.56下降到0.44,车均延误时间由33.2 s下降为25.6 s,平均停车次数由32次减少为25次,优化效果较为明显。In order to eliminate traffic safety hazards at K-type intersections and improve intersection traffic efficiency,the intersection of Nanshan Road-Dongmen Road-Chengji Road was using as an example to analyze the characteristics and existing problems of K-type intersections,and the concept of spatiotemporal integration was applying to refine the traffic organization design of K-type intersections to regularize and rationalize abnormal intersections,at the same time,to cooperate with intelligent technology to reasonably control K-type intersections.The results showed that the optimized intersection effectively reduced traffic conflicts and provided clearer driving trajectories.The saturation level of the intersection during off peak hours,decreased from 0.38 to 0.35,the average delay time per vehicle decreased from 22.1's to 19.3 s,and the average number of stops decreased from 21 to 16;The saturation level of intersections during the evening rush hour decreased from 0.56 to 0.44,the average delay time per vehicle decreased from 33.2's to 25.6 s,and the average number of parking times decreased from 32 to 25.The optimization effect is more significant.

关 键 词：K型交叉口 交通工程 时空一体化 精细化设计 慢行交通一体化 

分 类 号：U491[交通运输工程—交通运输规划与管理]