dc.description.abstract | People concern more about the traffic safety as the living quality is getting better. Speeding is always a main reason of most traffic accidents. We need a more effective way to control the speed. This article will discuss mostly about how different traffic signs result in different speeds.
First experiment, drivers are driving in an urban alley that is total 10 meters width. And set five different traffic signs (Stop, Make way, Yellow flash light, Red flash light and None) on the intersection with different opposite vehicles(car and bikers). And the dangerous car comes from the right side or left side on the intersection. By those factors of this experiment, we get 25 missions on each intersection with random order. The result shows that all the four traffic signs could make the driver slow down their speed. Compare with none any sign, the sequence of effective in those traffic signs: Red flash light (slow down 16.02%), Stop (13.32%), Make Way (9.82%) and Yellow flash light (8.87%). Any kind of traffic sign will not influence the drivers’ lateral stability. The drivers who can remember the signs they saw in the experiments will have less traffic accidents than the ones who cannot remember the signs. Often, compare with cars, scooters that come from the opposite lead to less crisis awareness to the drivers.
Second experiment, drivers are driving in an urban road that is two fast lanes and one slow lane, and keep driving in the middle lane. Set 12 different traffic sign or reduce speed marking on each road section to test the effect of the driver. The result shows that the reduce speed marking could remind drivers to notice their velocity, and drivers will decrease their velocity when they are approaching intersection. When they are approaching a traffic sign, they will also decrease velocity lightly to read information. The sign that could easily be read will be more effect on drivers. And we see no significant reaction from the drivers when their velocities are under the speed limited.
When drivers are faster than the limited speed, they will have bigger response to the traffic facilities. That means these facilities could reduce speeding effectively. By the different response of each facility, we can set the most effective facilities to different crisis awareness of road section or intersection. For example, set the Red Flash Light or Stop on the hyper-dangerous intersection. And set the reduce speed marking on the road section that drivers often speeding.
Keyword: Speed Management, Reduce Speed Marking, Sign, Drive Simulator
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