A New Approach to Modeling Vehicle-Induced Heat and Its Thermal Effects on Road Surface Temperature

The distribution of vehicle-induced wind velocity in the transversal direction of roads is measured. A statistical analysis is also performed to find the vehicle stopping time and stopping position at traffic signals. These results are used to build a heat-balance model to predict the road surface t...

Full description

Saved in:
Bibliographic Details
Published in:Journal of applied meteorology and climatology 2012-11, Vol.51 (11), p.1980-1993
Main Authors: Fujimoto, Akihiro, Saida, Akira, Fukuhara, Teruyuki
Format: Article
Language:English
Subjects:
Convection, turbulence, diffusion. Boundary layer structure and dynamics
Earth, ocean, space
Exact sciences and technology
Experiments
External geophysics
Heat
Heat flux
Meteorology
Motor vehicle traffic
Pavements
Repair & maintenance
Roads
Roads & highways
Statistical analysis
Statistical methods
Studies
Surface areas
Surface courses
Surface temperature
Temperature
Temperature effects
Traffic control
Traffic flow
Vehicles
Wind speed
Wind velocity
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The distribution of vehicle-induced wind velocity in the transversal direction of roads is measured. A statistical analysis is also performed to find the vehicle stopping time and stopping position at traffic signals. These results are used to build a heat-balance model to predict the road surface temperature resulting from the thermal effects of vehicles. To validate the model, measured and calculated road surface temperatures for a free-running (single path) location and a traffic-signal location are compared. The contributions of meteorological and vehicle-induced heat fluxes to the road surface temperature are quantitatively analyzed. For the present traffic and meteorological conditions, the calculated and measured road surface temperatures were in agreement for both the free-running and traffic-signal locations. Furthermore, the thermal contribution of vehicles to the road surface temperature was found to be nonnegligible at both locations.
ISSN:1558-8424
1558-8432
DOI:10.1175/jamc-d-11-0156.1