| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a side walk structure by which pedestrians can be aware of driver's abnormally close position to the side walk due to his taking a nap or inattentive driving and they can avoid the danger and also give attention. <P>SOLUTION: A sounding means intermittently generating sound when the tire of a traveling car gets on the sounding means in a substantially parallel state to the advancing direction of the car in the nearby position of the boundary of a carriageway and a walkway is arranged and a vibratory resonance is caused through a communication hole or a groove between the side ditch cavity, The danger is notified to the pedestrians by the generating sound. A preferable shape of the sound generating means is a protruded shape and the means is positioned with a slight angle from a right angle in the advancing direction of the car or in this side of the protrusion part of the traveling car, a gentle slope is given, or the walkway is made higher than the carriageway. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
