The Intelligent Transportation Control Model of Freeway with Ramps

Dealing with freeway bottleneck sections in ramps is hot research topic in most country. A traffic control model is built after dividing highway management units. New concept of regulating density is given after analyzing data. The conclusions are obtained after numerical calculation, that is: before vehicles entering the bottleneck sections, density and speed of vehicles should be controlled. This conclusion is helpful for further research of intelligent transportation system.