Optimization of Highway Traffic Channel Route Selection Scheme Considering Carbon Emission——Taking Leting in Hebei Province as an Example
Taking the traffic flow of national and provincial highways in coastal cities,which are representative of both passenger and freight transport,as an example,starting from the pollutant emissions of different vehicle types,this paper analyzes the vehicle type composition characteristics and pollutant emission characteristics of the traffic flow of coastal trunk highways.The research shows that super large trucks,medium trucks and small trucks are mainly distributed on the national roads,while small and medium-sized buses are relatively scattered.The pollution emission of small trucks,extra large trucks and medium and small buses on national roads is the highest.The pollution emission of small trucks and medium buses on provincial roads is the largest.CO emission accounts for the lar-gest proportion in all kinds of highways.The emissions of various pollutants from national highways are far greater than those from pro-vincial highways.To sum up,the paper proposes to optimize the highway route selection scheme in the port area from three aspects:re-ducing the highway flow,reducing the mileage and increasing the speed,with a view to providing new ideas for the green development of national and provincial highway systems.From the perspective of green development,it provides a thinking direction for the route se-lection of transit roads around cities and towns.
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