Considering the car and bicycle road protective fence to protect cyclists and cars at the joining part of car and bicycle roads, it is recommended that the standard of performance for car protective fence and the standard of performance for bicycle protective fence of 「Road Safety Installation and Management Guide (Part 3 Vehicle Protection Safety Facilities Side」. The vehicle's protective fence used for road-facing barriers uses products that have passed the class of physical collision tests corresponding to the road, and allows the specification and specifications of the passing product to be properly installed at the site. In addition, if it is necessary to install a protective fence for cyclists in the same location, it is desirable to have a horizontal beam on the side of the bike path on top of the median beam at the same height so that it can be held by hand while riding to prevent cyclists from falling out of the protective fence when conducting. The materials used in protective fence on bicycle paths, durable and allowing easy maintenance to use it. In accordance with 「Road Safety Installation and Management Guide (Part 3 Vehicle Protection Safety Facilities Side」 what is involved in for more detail.