The source of the vehicle
.Rapid economic growth of the country from the agricultural sector. To industrial to metropolis, the center of the business center and prosperity are estimated the population increased rapidly.Result in traffic congestion critical. And the days are deteriorating more and more. A traffic jam makes the car moving at speeds are low. The stop and go frequently. The oil is burned more and more.And there are drainage pollution exhaust in proportion to increase. So the near the road with traffic jams. Air pollution is more serious. In areas where traffic is flexible.The transportation, including carbon monoxide gas oxide of nitrogen compounds, hydrogen, carbon particles smaller than 10 micron. Lead and sulfur dioxide
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