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目前,我国许多城市道路和国道中的水泥路面在改造中将逐步涮黑,以美化城市环境、改善路面状况、降低灰尘噪音等。因此,沥青路面在我国具有很大的发展前景和空间。然而,沥青路面也有其固有的弱点,一是害怕泥水浸泡;二是在坡道上很难设置减速板。全国至今沥青路面尚未有设置减速板的先例,或者说未找到设置减速板的最佳方案,由于路面不能减速而引起
At present, many urban roads in our country and cement concrete pavement in the national highway will gradually shabu black, to beautify the urban environment, improve the road conditions, reduce dust and noise. Therefore, asphalt pavement in our country has great development prospects and space. However, asphalt pavement also has its inherent weakness, one is afraid of soaking mud; the second is difficult to set the ramp in the ramp. National asphalt pavement has yet to set a precedent for speed reducer, or that we can not find the best solution to set speed reducer, due to the road can not be caused by deceleration