Abstract
Hump was legally accepted as a part of road structure by revision of Road Construction Ordinance in April, 2001 as a traffic calming measure. In this research, a study of the hump's effects on drivers and residents' receptiveness are verified through an experimental introduction on public road over a long period of time. This experiment were conducted in order to find out the adequate frequency of humps in a determinate area and also to validate the hump. The hump's effect on drivers' mind in the area were it was placed was also investigated.