Abstract: In the on-ramp merging area, appropriate driving decisions should be made by observing the running environment and estimating the driving characteristics of the surrounding vehicles, which usually led to the inordinate traffic flow. To solve this problem, the decision strategy models were built for vehicles in the on-ramp merging area, and the operating rules for the new decision strategy were updated. Furthermore, the space-time trajectory, the lane changing in merging and upstream area and the average speed in the two different circumstances were analyzed by numerical experiments. The results show that in the condition of vehicle-vehicle communication environment, where there are a few lane changing phenomena; the average speed increases by 32.4% maximally, and in different vehicle input circumstance the speed fluctuation decreases by 76.7%, the traffic capacity increases by 13.3%.

Key words: vehicle-vehicle communication, merging area, decision strategy models, operating rules