CAJ | 학술논문

以车道被占用影响城市道路这种异常事件为例，分析并解决了实际通行能力、事故持续时间、路段上游通行能力与车辆排队长度的关系。根据时间与累计通过标准车当量数之间的直线关系，通过直线拟合的方法，得出发生事故前后的实际平均通行能力分别为0．3662（pcu／s）和0．3476（pcu／s），在交通事故发生后通行能力减小；建立时间与累计通过标准车当量数之间的向前差分模型，结论：事故前后实际通行能力随时间呈现出周期性的变化，周期约为60s，与红绿灯周期大致吻合，最后建立了事故发生到撤离的分段线性模型。
이차도피점용영향성시도로저충이상사건위례，분석병해결료실제통행능력、사고지속시간、로단상유통행능력여차량배대장도적관계。근거시간여루계통과표준차당량수지간적직선관계，통과직선의합적방법，득출발생사고전후적실제평균통행능력분별위0．3662（pcu／s）화0．3476（pcu／s），재교통사고발생후통행능력감소；건립시간여루계통과표준차당량수지간적향전차분모형，결론：사고전후실제통행능력수시간정현출주기성적변화，주기약위60s，여홍록등주기대치문합，최후건립료사고발생도철리적분단선성모형。
this paper has taken the unexpected incident as an example,which Lane occupied leads to Ur-ban road traffic capacity,analyzed and solved actual capacity,incident duration and the relation between capacity and vehicle queue length.According to the line relation between time and accumulated passenger car unit,combined with the linear fitting,computed that the actual average capacity are respectively 0. 3662 and 0.3476(pcu/s)before-and-after incident,which reveals the capacity reduces after accident. Build the forward difference model between time and accumulated Passenger Car Unit,drew a conclusion that the actual capacity presents a periodic changes as time before-and after accident and the period lasts for 60 seconds,which is roughly consistent with the traffic lights cycle,finally build the split-line model from the accident to evacuate.