Compared with the traditional traffic lights, drops of "light" wit in big data, data mining is derived, data processing, as well as the timing plan strong imitation has the advantage of the common. The advantage of the orbital data is that the area is larger and more scalable. Drops to derive the full amount of intersection traffic data, the data input in the model, through adjusting the parameters, can "simulation" is not the same as optimization plan after the traffic situation, and then the ideal optimization plan is given. After optimization plan online, can also according to the real-time orbit data change, see the effect of the timing plan, the rapid iteration, optimization, and then let the "light" wit evolution, with big data, high-tech, assist in urban traffic is more clear.

Now, didi has been collaborating with more than two dozen cities across the country. In wuhan, shenzhen, guiyang, jinan and other cities fell to the ground induced intelligence screen, wisdom and a heat map, a wisdom bus, intelligence traffic measure statements, "Internet + light", and other intelligence transportation projects, and obtained a certain result.