China Qingdao Traffic Operation Index

The data comes from the Qingdao Public Security Traffic Information Service Network, which provides the city's traffic index and is a comprehensive system. The traffic operation index is a comprehensive index for the theoretic evaluation of the overall operation of the road network. Compared with the traditional parameters such as vehicle speed and flow, it has the characteristics of being intuitive and simple. The traffic index allows people to understand the degree of traffic congestion more clearly, so as to have an intuitive and quantitative understanding of the city's overall traffic, and provide a useful reference for citizens to travel. In Qingdao Public Security Traffic Information Service Network, the traffic index ranges from 0 to 10 and is divided into 5 grades, namely smooth (0-2], basic smooth (2-4), mild congestion (4-6] , moderate congestion (6-8] and severe congestion (8-10].