Large-circuit experiment data

ShiTeng Zheng
2023/10/07
Traffic Experiment

Category: Circuit Experiment

Introduction

The large-circuit experiment was carried out on Nov. 9, 2019, in the test field affiliated to Research Institute of Highway, Ministry of Transport, China. See Fig. 1(a) for a snapshot of the experiment. The trajectories of cars measured by the GPS devices installed on each car are shown in Fig. 1(b). One can see that the radius of the circular track is 129.225 m.

Fig. 1. A snapshot of the experiment. Due to the large circumference, the camera is not able to cover the whole track.

Fig. 2. The trajectories of cars measured by the GPS installed on the cars.A snapshot of the experiment.

Initially the cars are stopped bumper-to-bumper. When a Run starts, the first car accelerates to ~20 km/h and travels at that speed until the last car starts up. Then the first car moves to catch up with the last car. Fig .3 show the spatiotemporal evolution of one sample run.

Fig. 3. The vehicle trajectory diagrams.

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Notice

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