六、在美、日高速道路考察中可以学习借鉴的几个具体问题。 (一)在道路建设中要充分考虑行人特别是残疾人的通行方便。我们在美、日道路考察中感到他们在修建道路时,无一例外都充分考虑了无障碍设计。人行过街横道线处两侧道牙一律下凹,改为特制平道牙,以利残疾人乘坐的轮椅、手推儿童车以及行人过街(见图1、2、 6. Several specific issues that can be learned from the study of the US and Japan highways. (a) Full consideration should be given to the convenience of pedestrians, especially disabled people, in road construction. During the road investigations in the United States and Japan, we felt that when they were building roads, without exception, they fully considered barrier-free design. The roads on both sides of the pedestrian crossing line shall be concave and shall be replaced with specially-made roadside teeth to facilitate wheelchairs for disabled persons, push-carts, and pedestrian crossings (see Figure 1).