减速带有什么用?I really want to know.Who can help me?

来源：学生作业帮编辑：作业帮分类：综合作业时间：2024/05/17 04:27:38

减速带也叫减速垄,是安装在公路上使经过的车辆减速的交通设施,形状一般为条状,也有点状的,材质主要是橡胶,也有是金属的,一般以黄色黑色相间以引起视觉注意,使路面稍微拱起以达到车辆减速目的,一般设置在公路道口、工矿企业、学校、住宅小区入口等需要车辆减速慢行的路段和容易引发交通事故的路段,是用于减速机动车、非机动车行使速度的新型交通专用安全设置.减速带很大程度减少了各交通要道口的事故发生,是交通安全的新型专用设施.汽车在行驶中既安全又起到缓冲减速目的,提高交通道口的安全.

减速带有什么用?I really want to know.Who can help me? I want to sb who can help me I want to study English,who can help me? I want to make a friend ,one who can help me 其中one 有什么用呀 i want to make a foreign friend,who can help me or ,give me i want to find friends who can spesk english.can you help me I just want to find a person who can really put me in heart i want to study english who can help me i am a chinese i want to make my English better,who can help me? i want to rent a house in nanjing who can help me find a hou I want to learn English.Who can help me?的意思 I want to have a friend who can help me learen english,thank