Using the fact that the car can travel speed detector on each step of the way. The car ran a survey made experiments have installed navigation devices (GPS Tracking) to remove the saved data to calculate the average speed of travel of each block. Exploring travel speeds were tested on 11-14 November 2557, on the 11th of the road consists of Highway No. 21, National Highway No. 210 National Highway No. 228 National Highway National Highway No. 2159 and No. 2037. Highway No. 201
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