Shenyang junction speed advisory system wins award

We may always rush our vehicle at the signal so that we cant get stuck up with Red signal. Imagine if there is some one to say at what speed you need to drive in order to avoid Red, sounds cool rite. Exactly this is done in china by a police officer.He developed a system which digitally shows the speed at which you need to drive.

Police in the Chinese city of Shenyang in Liaoning Province have introduced a “Smart Digital Traffic Guidance System” developed by Liang Zhiwei, a serving police officer and inventor, which advises drivers of the appropriate speed to travel at in order to pass through the upcoming traffic junction on a green light.
The suggested speed is automatically calculated and generated by the system and is shown on the LED display screen. It also reduces possible traffic accidents at the road intersections.
The system, which was awarded the gold medal during the sixth China International Invention Fair, is normally installed 300m-400m ahead of the traffic light intersection.