台州市信号灯交叉口碳排放测算及优化策略

近年来随着小汽车保有量的不断增多,机动车尾气成为碳排放的主要组成部分。文中以信号灯控制交叉口运行的小汽车为研究对象,通过研究小汽车在交叉口减速、怠速、加速三种工况下车辆的排放特性,将信号灯交叉口小汽车温室气体排放量量化。本文以台州市市府大道-中心大道交叉口为例,通过实地调查该交叉口当前平峰期和高峰期信号灯配时特性、交通运行特性等实际参数,对二氧化碳排放量进行测算,最终得出该交叉口在平峰期和高峰期的二氧化碳小时排放量,为后续该交叉口采取优化策略后在碳排放指标方面的量化效果提供参考依据,同时为台州市信号灯交叉口碳排放量测算提供参考方法。

Carbon Emission Calculation and Optimization Strategy at Signal Intersections in Taizhou

Recent years,with the continuous increase of car ownership,motor vehicle exhaust has become a major component of carbon emissions. In this paper,cars running at signal-controlled intersections are taken as the research objects. The emission characteristics of cars under three working:conditions of decelerating,idling and accelerating at intersections are used to quantify the greenhouse gas emissions of cars at signalized intersections. This paper takes the intersection of Shifu Avenue-Central Avenue in Taizhou as an example,through field investigation of the current situations of the intersection during flat and peak periods,the signal timing characteristics,traffic operation characteristics and other actual parameters,the carbon dioxide emissions are measured and calculated,and the intersection is finally obtained. The hourly carbon dioxide emissions of the intersection during the flat period and the peak period provide a reference for the subsequent quantification of the carbon emission indicators after the optimization strategy is adopted at the intersection,and it also provides a reference method for the carbon emission measurement and calculation of the traffic light intersection in Taizhou.