Method for avoiding obstacles based on blocking corners in pedestrian simulation

Abstract

The invention relates to a method for simulating traffic behaviors of pedestrians in the technical field of traffic simulation, and discloses a method for avoiding obstacles based on blocking corners in the pedestrian simulation. The blocking corners of the obstacles generated on the current pedestrians are established after all static obstacles and other pedestrians are scanned in the collision avoiding range; and if the target direction of the current pedestrian is not comprised by any blocking corner, the pedestrian walks along the direction, otherwise, the pedestrian needs to pass round a blocking area formed by the blocking corners in the target direction. The method provides the concept of the blocking corners; the blocking corners of the obstacles on the current pedestrian are established, and further the blocking area round which the pedestrian needs to move is determined; meanwhile, a path of moving round the static obstacles and the pedestrians in the same direction is selected according to the shortest path principle and the collision with the pedestrians in the opposite directions is avoided by reducing the priority of one side of each blocking corner. No complex parameter calibration is needed in the process; and the collision avoiding range and the moving-round rule can be freely set. Therefore, the needs of different simulation with different purposes are met.

Description

technical field [0001] The invention relates to a method for simulating traffic behavior of pedestrians in the technical field of traffic simulation, in particular to a method for avoiding collision of obstacles in pedestrian simulation based on blocking angle. Background technique [0002] The simulation research on pedestrians in the field of transportation is usually included in the simulation research on the passenger transport hub system. This kind of research can be traced back to the late 1960s, and initially it was mainly researched on airport hubs. Passenger terminals were simulated as systems for the first time in Germany (Baron, 1969). In the United States, the FAA funded research on three different methods for airport hub simulation: stochastic discrete event simulation (Gorstein and McCabe, 1982), queuing models (Gentry and Doyle, 1978), and regression models (McCullough and Roberts, 1979); the University of California, Berkeley used a deterministic queuing mod...

AI Technical Summary

Problems solved by technology

This model solves the collision avoidance problem of obstacles by setting the repulsive force between pedestrians and between pedestrians and obstacles. However, due to the complexity of the model itself, there are certain difficulties in the parameter calibration of repulsive force, which increases the difficulty of pedestrian simulation.

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