Judgment method for priority control of primary road and secondary road at plane intersection

• Main Authors: LI HUI, GE YUNFEI, GUAN XUHUI, GUO YAHUI, LIU YANG, ZHANG XU, LI SHUXIN
• Format: Patent
• Language: Chinese; English
• Published: 21.10.2022
• Subjects: PHYSICS; SIGNALLING; TRAFFIC CONTROL SYSTEMS

The invention belongs to the technical field of traffic control, and discloses a plane intersection primary and secondary road priority control judgment method which comprises the following steps: establishing a primary road priority control plane intersection model, and setting plane intersection traffic parameters; setting a priority and a way giving rule of an intersection traffic flow conflict area; calculating a primary-secondary road traffic flow ratio and a secondary road evaluation index according to the primary road traffic flow and the secondary road traffic flow; performing quadratic curve fitting on the traffic flow ratio of the primary road to the secondary road with the secondary road average travel time, the secondary road average queuing length and the secondary road average delay time; according to inflection points of the fitted curve, determining an optimal primary and secondary road traffic flow ratio of the primary road priority intersection; and judging whether the priority control seque