Social force-based road segment construction area heterogeneous traffic flow model establishing method

Abstract

The invention discloses a social force-based road segment construction area heterogeneous traffic flow model establishing method. The method comprises the following steps of: 1, establishing a road segment construction area traffic flow model; 2, acquiring data of a road segment construction area; 3, building a simulation platform to simulate a real construction area traffic flow; 4, calibrating aroad segment construction area traffic flow model parameter by utilizing the data acquired in the step 2; and 5, verifying the road segment construction area traffic flow model by utilizing the dataacquired in the step 2 and the simulation result. According to the method, a social force model has certain advantages in road segment constriction area traffic flow model establishing and is capableof better reflecting the heterogeneity of traffic flows; and the social force-based model is more suitable for traffic flows without lane division. According to the method, an existing social force model is improved firstly, a new model is calibrated, and the calibrated model is utilized to simulate and analyze traffic flows.

Description

technical field [0001] The invention relates to a method for establishing a heterogeneous traffic flow model in a road section construction area based on social forces. Background technique [0002] In recent years, the country has vigorously built new transportation facilities, and constructions on expressways and urban trunk lines are frequent. Especially on urban roads, there are extensive construction areas on road sections. The setting of construction areas reduces the traffic efficiency of vehicles on road sections, causes a large number of queues, increases vehicle energy consumption and exhaust emissions, and causes serious pollution to the atmosphere. Due to the obvious heterogeneity of vehicles on urban roads and the change of road characteristics after setting up construction zones, it is difficult to model traffic flow and study emissions. [0003] Although a lot of research has been done on construction zones, most studies focus on expressways, and relatively f...

AI Technical Summary

Problems solved by technology

In addition, road sections with construction areas have characteristics such as no lane divisions and irregular driving boundaries. Some traditional traffic flow models are not suitable for such complex traffic scenarios.

Images