实现交通管理智能化 ,是缓解上海交通顽症的一贴医药。一些象“温度计”般的智能交通指示牌 ,将有望在近期内竖立在上海各高架匝道口 ,路面的车流情况 ,都可通过牌上的红、黄、绿三种颜色得以反映 (红色代表道路拥堵严重、绿色代表道路畅通、黄色代表道路处于两者之间 )。虽然 To achieve intelligent traffic management, Shanghai traffic is to alleviate the chronic problem of a medicine. Some smart traffic signs like “thermometers” are expected to be erected in the near future at elevated viaducts in Shanghai. The flow of traffic on the road can be reflected in red, yellow and green colors on the cards Heavy congestion, green means the road is clear, yellow means the road is between the two). although