Infrastructure Planning and Management Vol.37 (Special Issue)
AN EFFECT OF MEASURES TO AVOID OVERRUNNING THE IC EXIT BASED ON DRIVER BEHAVIOR
2020 Volume 75 Issue 6 Pages I_393-I_403
Details
2020 Volume 75 Issue 6 Pages I_393-I_403
There are some reports that some driver overrun the IC exit of expressway. In this situation, driver sometimes makes to act wrong-way driving to return appropriate traffic lane. Currently, a number of vehicles with self-driving function is increasing. Wrong-way driving might be more popular because selfdriving function makes drivers to decrease the concentration for driving. It is important to install countermeasures to avoid overrunning the IC exit.
In this study, two kinds of countermeasures is considered, such as 1) color of pavement is changed to red at every IC exit (500m away from the exit) and 2) IC number is changed to kilopost to be able to understand the distance to the IC. Driving experiment by utilizing the driving simulator is conducted to clarify the benefit of these countermeasures. From the result of this experiment, countermeasure to change pavement color could bring better effect so as to increase the percentage of confirming the exit sign. Moreover, countermeasure to change IC number makes driver to increase attentions to front view. Result of the questionnaire for subjects shows higher reputations compared to current situation for both countermeasures. Therefore, both countermeasure could be useful to avoid overrunning the IC exit.
