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If it is mainly to prevent pedestrians from crossing the road at will, it is necessary to weigh the most reasonable LOCAIION and distance. People's walking ability is limited. It's human nature to choose shortcuts. The isolation measures to block pedestrians do not need to be set in the whole line, especially not in the middle of the motorway, but should be set at selected points on the roadside in combination with other roadside facilities and green plants and in combination with the arrival distance of pedestrian crossing attraction points across the road. In other words, as long as the length and direction of the obstruction are scientific and reasonable, pedestrians will feel that it is more cost-effective to choose nearby pedestrian crossing facilities. In general, the focus is on the sections where the possible behavior of pedestrians will catch the driver unprepared. For example, there are a large number of pedestrian attraction points near the intersection, bus station and both sides of the road. Railings can be set as follows: 1) railings shall be set on the extension lines on both sides of the pedestrian walkway close to the intersection to inhibit oblique crossing when taking a shortcut;

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