上下班高峰川流不息的自行车大军曾是我国城市道路上的标志,然而在小汽车进入家庭的社会潮流中,人们逐渐丢掉了自行车,减少了步行,过分地依赖于小汽车,导致了环境污染、道路交通事故频发、交通拥堵等社会问题,影响城市的可持续发展。步行和自行车交通是城市交通体系的重要组成部分,在优先发展公共交通的基础上,提倡步行和自行车 However, in the social trend that cars enter homes, people gradually lose their bicycles, reduce their walking distance, rely too much on cars, and lead to environmental pollution. The road Traffic accidents, traffic congestion and other social problems, affecting the sustainable development of the city. Walking and bicycle traffic are important components of the urban transportation system. On the basis of prioritizing public transport, walking and cycling are promoted