Temporal variation of traffic on highways and the development of accurate temporal allocation factors for air pollution analyses.

ABSTRACT: Traffic activity encompasses the number, mix, speed and acceleration of vehicles on roadways. The temporal pattern and variation of traffic activity reflects vehicle use, congestion and safety issues, and it represents a major influence on emissions and concentrations of traffic-related air pollutants. Accurate characterization of vehicle flows is critical in analyzing and modeling urban and local-scale pollutants, especially in near-road environments and traffic corridors. This study describes methods to improve the characterization of temporal variation of traffic activity. Annual, monthly, daily and hourly temporal allocation factors (TAFs), which describe the expected temporal variation in traffic activity, were developed using four years of hourly traffic activity data recorded at 14

SUBMITTER: Batterman S 

PROVIDER: S-EPMC4380130 | biostudies-literature | 2015 Apr

REPOSITORIES: biostudies-literature