Headway Distribution Models and Their Application on Two-lane Highway in Mountainous Areas;

Revised Weibull revision model of headway distribution for motor-vehicle

The start-up time and headway of queuing motor vehicles in the intersection,start-up lost time of through vehicles with disturbance under mixed traffic condition,and estimate of green time for discharging motor vehicles in the queue based on above results were analyzed.

By means of probability analysis,different car-following sequences and combinatorial probabilities of mixed traffic flow,which was made up of r categories of vehicles,was studied,and a capacity model of this traffic flow on sections was established using car-following time headway.

The periodic interferences by straight-moving bicycles will change the dynamics feature of right-turning vehicles time headway from random into chaos,which is detected by measuring the large.

Aimed to solve the deficiency of determining car following state,based on He s method which uses the varying rule between the absolute value of relative speed difference and time headway,this paper presents a new method.

Taking account of vehicle safety and passenger comfort,the calculation method of minimum vehicle time-headway based on the analyse of vehicle brake process is given.

Based on the traffic sample data of several intersections in Beijing,this paper analyzes the headway distribution of vehicles which cross the stop in the queue with congestion and its changing characteristic.

Based on real data,this paper focused on headway distribution about up-stream of two lanes urban expressway on- ramp.

Result shows that it reaches saturated headway since 6th vehicle.

Based on the process of merging on expressways and characteristics of running vehicles involved in the merging,this paper defines relative time headway to describe the velocity of vehicles involved in merging process and the volume of the main lane.