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互通式立交和服务区作为高速公路的主要组成部分,其合理的净距值将直接影响高速公路构造物的设置位置和交通运行质量。近年来,随着公路路网的不断完善,高速公路新建和改扩建项目的不断增加,互通式立交与服务区的净距越来越受到人们的广泛关注。通过分析高速公路互通式立交与服务区之间净距的各种影响因素,将其净距的组成部分细化分段研究,并利用数学公式进行计算,最终给出了主线不同设计时高速公路互通式立交与服务区之间净距的建议值,并提出了特殊情况下净距不满足要求时的改善措施,可为实际的工程设计提供参考依据。
As an integral part of the expressway, the reasonable clearance value of the interchange and the service area will have a direct impact on the location and traffic quality of expressway structures. In recent years, with the continuous improvement of highway network, new projects of expressway construction and expansion and expansion of projects, the clearance between interchanges and service areas has drawn more and more people’s attention. By analyzing various influencing factors of the clear distance between express interchange and service area, the study of the components of clear distance is detailedly subdivided and calculated by mathematical formula. Finally, The recommended value of the clearance between the interchange and the service area, and proposes the improvement measures when the clearance in special circumstances does not meet the requirements, which can provide a reference for the actual engineering design.