Field Test of Vehicles’ Speed Driving Behavior in Multi-Lane Freeway Interchange Diverging Areas

In order to explore and research the characteristic of vehicles’ speed driving behavior in a multi-lane freeway interchange diverging area, and provide realistic basis for safety design of diverging area, this paper choosed Hu-Ning multi-lane freeway interchange (groups) as a field observation engineering, and used MC5600 vehicle type pneumatic tube system statistics and field velocity data and SPSS Statistics software processing data. Tests showed that: the relationship between the frequency and the velocity of cars and trucks are the normal distribution. Two-lane ramp terminal average speed of cars is 75~85 km/h, and the operating speed (V85) of cars is 90~100 km/h; the single lane average speed of cars is 60~70 km/h, and the operating speed (V85) of cars is 80~95 km/h. Two-lane ramp terminal average speed of trucks is 70~80 km/h, and the operating speed (V85) of trucks is 80~90 km/h; the single lane ramp terminal average speed of trucks is 60~85 km/h, and the operating speed (V85) of trucks is 65~100 km/h.