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European Transport Research Review

An Open Access Journal

Fig. 1 | European Transport Research Review

Fig. 1

From: Vehicle trajectory at curved sections of two-lane mountain roads: a field study under natural driving conditions

Fig. 1

The method used in trajectory measurement in the existing researches: (a) the cross-section within curved area for recording the vehicle lateral position by roadside observation, (b) the trajectory of a car when passing the bend, (c) record the vehicle lateral position, approximated the vehicle path by linking five points; (d) vehicle path was approximated by linking three points

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