CAJ | 학술논문

匝道是互通立交的重要组成部分，基于运行速度的匝道设计理念是目前公路及互通立交一种新的设计思路。本文以互通立交匝道小型车辆的运行速度为主要研究目标，通过分析互通立交匝道运行速度的影响因素，制订正交实验方案，运用车载高精度GPS设备，采集了北京市4座互通式立交共14条匝道车辆连续运行速度数据。根据其中10条匝道的数据，按照车辆在互通立交匝道上的运行速度特性将匝道分为三段：减速段、匀速段、加速段，构建互通立交匝道各个分段运行速度与影响因素之间的预测模型，并使用另外4条匝道的实测数据对预测模型进行验证。结果表明，模型预测值的相对误差在5%以内，验证了模型的正确性。
잡도시호통입교적중요조성부분，기우운행속도적잡도설계이념시목전공로급호통입교일충신적설계사로。본문이호통입교잡도소형차량적운행속도위주요연구목표，통과분석호통입교잡도운행속도적영향인소，제정정교실험방안，운용차재고정도GPS설비，채집료북경시4좌호통식입교공14조잡도차량련속운행속도수거。근거기중10조잡도적수거，안조차량재호통입교잡도상적운행속도특성장잡도분위삼단：감속단、균속단、가속단，구건호통입교잡도각개분단운행속도여영향인소지간적예측모형，병사용령외4조잡도적실측수거대예측모형진행험증。결과표명，모형예측치적상대오차재5%이내，험증료모형적정학성。
Ramp is an important part of interchange, the ramp design idea based on the running speed is a new design idea of the highway and interchange. This paper is mainly focused on the interchange ramp running speed of the vehicle. Through the analysis of the influence factors of the interchange ramp running speed, the orthogonal experiment program is formulated, and then continuous running speed data of the vehicle on the four interchanges in Beijing is collected, in total of 14 ramps with the vehicle-mounted high precision GPS devices. According to 10 of these ramps’data, based on the running speed characteristics of the vehicle on the interchange ramp, the ramp is divided into three sections: deceleration section, uniform section, acceleration section. At last, the prediction model of each section between the interchange ramp running speed and the influence factors is established, and then the prediction model is verified through comparing the remaining four ramps’measured data. The results show that the relative error values of the prediction model are less than 5%, the accuracy of the model is validated.