THE DRIVERS' REACTION CHARACTERISTICS AT SITES WITH PROMISE ON SECONDARY ROAD IN PLAIN AREA

The drivers' workload is measured at sites with promise on National Highway 109 Ning Xia section through eye tracking, heart rate (HR), breath and skin resistance (SR) from the driver's psycho-physical aspect. The main purpose is to quantitatively analyze and compare the workload between ordinary segment and at sites with promise, then evaluate the effect of safety improvement and give efficient suggestions from human factors aspect. Results have shown that workload at sites with promise is much greater than at ordinary segment, but the effect of safety improvement on curve using signs and markings is far from expectation. Some corresponding measures are also put forward to safety improvement from combination of engineering and ergonomics. Keyword: Traffic safety, Drivers' reaction characteristics, Driving behavior, Sites with promise, Workload