省域高速公路网车辆碳排放量测算方法

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Abstract The paper proposed a model for estimating the carbon emissions of provincial expressway network by toll collection data. In consideration of a theoretical fuel consumption model and the factors such as vehicle type differences, total mass, and vehicle operating conditions, it achieved precise calculation of carbon emissions at the section level. Based on toll collection data, the average speeds of section were calculated through data cleaning and aggregation, and TransCAD was used to achieve traffic allocation. By using PYTHON, the Dijkstra algorithm to determine the actual path matrix was implemented, combining these with the NEDC driving cycle to construct the vehicle driving cycle. It calculated fuel consumption and converted into carbon emissions by inferring specific fuel consumption through the MOVES database. Taking the Ningxia Hui Autonomous Region as a case study, we calculated the monthly carbon emissions of provincial highways and analyzed the distribution characteristics of carbon emissions. The feasibility of the model was verified through MOVES and COPERT simulations and comparison with various fuel consumption data released by the National Bureau of Statistics. The results show that in September 2019, the total carbon emissions of expressways in Ningxia Hui Autonomous Region were 210400 tons, with a passenger vehicle to truck distribution ratio of 1:3.92. Heavy trucks with 5axles or more accounted for 82.34% of the total carbon emissions of trucks. Passenger cars accounted for 83.18% of the total carbon emissions of passenger vehicles. Carbon emissions were mainly concentrated on the road network connecting provincial capital cities and surrounding prefecture level cities. Calculated emissions of the model were 15.86% above those of MOVES and 32.16% above COPERT’s, with a deviation of merely 4.29% from the national and local statistical department’s carbon emission converted by fuel consumption. The paper could reveal the carbon emissions of each vehicle type on provincial expressways, and the distribution characteristics of carbon emissions on each road section.

Key words： transportation expressway carbon emission estimation toll collection data automotive operating conditions specific fuel consumption

Received: 25 May 2024

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	YAN Sheng-yu
	WANG Zhao-long
	WU Jin
	BAI Shu-ming
	SUN Jian

Cite this article:

YAN Sheng-yu,WANG Zhao-long,WU Jin等. Estimation model of vehicle carbon emission for provincial expressway networks.[J]. CHINA ENVIRONMENTAL SCIENCECE, 2024, 44(12): 7095-7104.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2024/V44/I12/7095

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