摘要
对当前道路交通控制方法进行梳理,提出现有控制方法中未对控制参数进行敏感性分析的缺陷。基于格林希尔兹线性速度模型流量、速度和密度之间的关系,建立标准化参数敏感性模型,并得出标准化速度和标准化密度始终具有相同敏感性的结论;而当标准化速度大于5/8或者小于3/8时,标准化速度参数更为敏感,反之则是标准化流量更为敏感。
The defects in the existing methods of road traffic control,that the sensitivity analysis of road control parameters is not conducted,is pointed out after a discuss about the current methods of road traffic control.Based on the relationship between the flow rate,velocity and density of the Greenshields model of linear velocity,the model for sensitivity of normalized parameters is established and the conclusion that the normalized velocity and the normalized density always have the same sensitivity is drawn.When the normalized velocity is more than 5/8 or less than 3/8,the normalized parameter of velocity is more sensitive,otherwise the normalized parameter of flow is more sensitive.
出处
《公路交通技术》
2017年第6期114-116,共3页
Technology of Highway and Transport
基金
重庆市社会事业与民生保障科技创新专项项目(cstc2015 shms-ztzx30014)
关键词
标准化参数
敏感性
标准化交通参数敏感性比较模型
格林希尔兹模型
Normalized parameters
sensitivity
comparison model for sensitivity of normalized traffic parameters
Greenshields model
