摘要
随着城市规模的不断扩大和交通建设等级的不断提高,更多的城市隧道将得以建设。由于隧道呈半封闭状态,汽车排放的CO等有害气体不能及时扩散时,将影响驾乘人员的健康及行车安全。CO排放与车辆的运行速度密切相关,采取合理的限速措施可以有效地控制并减少CO的排放。通过观测,在分析重庆八一隧道、向阳隧道和石黄隧道的车速和CO排放分布特征基础上,采用多元回归分析法对车速与CO排放因子关系进行了建模,并提出了车速控制推荐限值h e车速控制措施建议。
With the constant enlargement of the city and the ceaselessly increasing level of road con- struction, more city tunnel will be constructed. As a semi-closed structure, automobile emission of harmful gas such as CO in the tunnel will affect the health of drivers and traffic safety seriously. CO emission has a closely relationship with operating speed, a suitable speed limits criteria can effectively control and reduce the emission of CO. The research first analyzes the speed distribution characteris- tics in the Chongqing BaYi tunnel and ShiHuang tunnel. Then, speed and factors of CO emission are used to make a model with multiple regression analysis, and then proposed speed control recommen- ded limits with different proportion of heavy vehicle car. At last, according to the characteristics of tunnel in mountainous city, measures and suggestions for speed control are put forward.
出处
《交通科技》
2013年第6期72-75,共4页
Transportation Science & Technology
基金
重庆市建设科技项目(城科学2009第51号)资助
关键词
城市隧道
车速分布
CO排放
控制措施
urban tunnel
speed distribution
CO concentration
control measures
