摘要
为了揭示高速公路合流区1车道上交通量的变化规律,利用摄像机对高速公路合流区1车道上交通量数据进行大量调查,运用AutoScope2004图像处理系统对调查数据进行分析处理。在对调查数据进行分析处理的基础上,运用数理统计方法提出1车道交通量随主路交通量、匝道交通量及其离合流鼻端长度变化而变化的经验模型,运用此经验模型与美国HCM模型进行比较,得出我们的模型不但改进了HCM模型,而且更适合我国实际。该模型可以为合流区通行能力分析、交通管理和几何设计等进一步研究提供分析基础。
In order to work out the first lane traffic flow rate regularity of the on-ramp expressway junction,we use video tape recorder to investigate the traffic volume of lane 1 on expressway interchanges.Based on a lot of analysis and disposal for investigating data by AutoScope 2004 image sensing system,the traffic flow rate model is set up with probabilistic and statistical method.This model is carried out with HCM model and Chinese traffic data.After being tested with Chinese data this model shows better fitness to the Chinese traffic conditions than other existed HCM model.This is the analytical foundation to highway capacity,traffic management,and designing of expressway merge area.
出处
《公路交通科技》
CAS
CSCD
北大核心
2004年第12期76-79,共4页
Journal of Highway and Transportation Research and Development
基金
国家自然科学基金资助项目(50478071)
关键词
高速公路
交通流流率
交通特性
通行能力
Expressway
Traffic flow rate
Traffic characteristics
Highway capacity
