| 摘要 |
PURPOSE: A constructing method of an overspeed preventing structure in a speed-limit zone is provided to guide safe driving by transmitting continued vibration to a driver during travelling. CONSTITUTION: A constructing method of an overspeed preventing structure in a speed-limit zone comprises following steps. A road including a crosswalk in a speed-limit zone is excavated at fixed depth(S10). A primer layer is applied on an excavated part of the road(S20). A steppingstone projected from the road is installed on both edges of the primer layer formed in the width direction of the road(S30). Multiple speed-bumps are installed at regular intervals along the longitudinal direction of a road(S40). $multiple speed preventing stones are formed at regular intervals on the primer layer wherein the speed-bumps are not installed(S50). |
