Experimental Study of Drivers’Overtaking Behavior on Two-lane Highways

By high-accuracy GPS dynamic data acquisition instrument,the author designed the experimental plan of drivers’overtaking on the two-lane highways with the drivers’perceive to measure the overtakable gap and the returnable gap.The experimental results could be used as the basis for the study of two-lane highways ’ capacity,drivers ’ overtaking behavior,the design of overtaking sight distance and intelligent transportation system.