Abstract
Setting up an exclusive left-turn lane and corresponding signal phase for intersection traffic safety and efficiency will decrease the capacity of the intersection when there are less or no left-turn movements. This is especially true during rush hours because of the ineffective use of left-turn lane space and signal phase duration. With the advantages of vehicle-to-infrastructure (V2I) communication, a novel intersection signal control model is proposed which sets up variable lane direction arrow marking and turns the left-turn lane into a controllable shared lane for left-turn and through movements. The new intersection signal control model and its control strategy are presented and simulated using field data. After comparison with two other intersection control models and control strategies, the new model is validated to improve the intersection capacity in rush hours. Besides, variable lane lines and the corresponding control method are designed and combined with the left-turn waiting area to overcome the shortcomings of the proposed intersection signal control model and control strategy.
Highlights
Due to the rapid increase in population and the number of vehicles, traffic congestion has had a major impact on day-to-day life
8, 1058 of vehicle-to-infrastructure (V2I) communication, a control strategy is proposed with the2019, advantages for the new intersection signal control model which is based on a fixed-time control strategy and can solve the problem of full utilization of the green phase in the controllable shared lane
If there are no left-turning vehicles in the shared lane when the left-turn waiting area is full and when the green time for through movements is over, the green signal for left-turning the through green time is not ended, the through vehicles will pass through the intersection movement is active, so the left-turning vehicles in the left-turn waiting area and the shared lane will successively until the end of the through green time
Summary
Due to the rapid increase in population and the number of vehicles, traffic congestion has had a major impact on day-to-day life. 8, 1058 of vehicle-to-infrastructure (V2I) communication, a control strategy is proposed with the2019, advantages for the new intersection signal control model which is based on a fixed-time control strategy and can solve the problem of full utilization of the green phase in the controllable shared lane. Irrespective of whether fixed-time control or an actuated traffic signal control are used at the intersection, it will cause the waste of left-turn phase duration and reduce the intersection’s capacity, especially in the rush hour, which intensifies the traffic congestion and increases the overall delay of the vehicles.
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