The Application in the Intersection at Grade of Urban Road of VISSIM

The intersection at grade of urban road is an important part in road system,once the intersection appears traffic jam,it can affect the traffic effective operation,hence,it is very important meaning with urban traffic to how to improvement the traffic capacity of the intersection.Regarding Nanshaomen intersection as studying target in thesis,with the help of VISSIM,investigates the present traffic quantity in peak time,signal timing scheme and road function dividend,studies the reasonable signal timing scheme and road dividend scheme in intersection and evaluates the scheme.The result indicates the scheme can reduce the vehicle delay and improve the traffic capacity of the intersection effectively,it proves that the application in the intersection at grade of urban road of VISSIM can get to good effect,and provides the effective reference to solve increasingly serious traffic jam in the intersection at grade of urban road.