摘要
通过分析信号交叉口进口道车道功能与安全的关系,采用危险度表征信号交叉口的安全水平。构建以信号交叉口危险度最小为目标函数,以信号交叉口时空条件为约束的车道功能划分优化模型,并给出求解流程。应用案例表明,对于采用常见信号控制方案的新建或改建信号交叉口,可通过该模型找寻安全水平最高的车道功能划分方案。
Improving traffic safety is an important goal when designing newly-buih or rebuilt sig nalized intersections. A risk index was chosen to evaluate safety. An optimization model which took risk index as objective function and constraint to space-time condition was established to obtain the optimized lane-use assignment at intersections, and a solution procedure was given to solve the model. An actual road intersection was optimized by model. Results showed this model can be used to generate the optimal lane-use assignment for intersections with normal control phases.
出处
《公路工程》
北大核心
2017年第2期71-75,84,共6页
Highway Engineering
基金
浙江省教育厅一般项目(Y201432670)
华东交通大学校立科研基金(15GD05)
关键词
交通安全
信号交叉口
车道功能
危险度
traffic safety
signalized intersection
lane-use assignment
risk index
