Provided is a lane dynamic partitioning control method for an expressway intersection area. For the expressway intersection area, based on the actual traffic state, lanes of the intersection area are dynamically partitioned into intersection area lanes and non-intersection area lanes through
signal indication signs. The intersection of the upper ramp traffic, the lower ramp traffic and the mainline traffic is achieved by means of the intersection lanes; the
exclusive right of way is provided for the non-intersection
traffic flow of an expressway mainline by the utilization of the non-intersection lanes. The control method comprises the two parts of the dynamic partitioning of the functions of the intersection area lanes and the control over the functions of the intersection area lanes, and the lane function dynamic partitioning model regards the overall through-out
capacity maximization as a target, and determines the number of vehicles on the intersection lanes and the non-intersection lanes; the lane function control part comprises a control
strategy implementation scheme, information publishing equipment arrangement and an isolation implementation method. The method can provide the
exclusive right of way for the expressway mainline traffic in the intersection area, and reduce the interference to straight vehicles of the mainline by the intersection behavior, thereby improving the through-out capacity of the intersection area; under the condition that the vehicles line up and overflow at an off-ramp, the straight vehicles of the mainline can pass through normally, the vehicle average
delay is reduced, and the
bottleneck problem of the expressway weaving area is solved or relieved.