高速公路改扩建施工期转序区车速特征分析

Analysis of Traffic Flow Characteristics of the Merging Section in the Construction Area of the Highway Reconstruction and Expansion

摘要: 高速公路改扩建受施工影响，道路行车空间压缩，施工期交通流特性与运营期存在明显差异，针对性施工期提出合适的交通管理策略显得尤为重要。本文对开阳高速施工期交通转序路段开展现场调研和行车车速特征分析，利用雷达、录像设备采集转序区车速，对所获得的交通数据进行加工和可视化处理，并分析转序区路段车速特性，提出限制速度建议取值，为施工期转序区线形设计、速度控制及交通管控策略等研究提供了重要技术依据。

Abstract: The expansion and reconstruction of highways are affected by construction, which compresses the driving space, and the traffic flow characteristics during the construction period are significantly different from those during operation. It is particularly important to propose appropriate traffic management strategies specifically for the construction period. This paper conducts on-site investigations and analyzes driving speed characteristics in the traffic transition sections of Kaiyang Expressway during the construction period, using radar and video equipment to collect vehicle speeds in the transition areas. The obtained traffic data are processed and visualized, and the speed characteristics of the sections in the transition areas are analyzed. Recommended speed limit values are proposed, providing important technical support for research on the alignment design, speed control, and traffic management strategies in the transition sections during the construction period.