01474106

Component

https://doi.org/10.3141/2372-11

http://scholar.google.com...ones&publication_year=2013

The improvement of the street thermal environment for walking and cycling is attracting increased attention as a strategy for increasing livability. This approach has also been proposed as a strategy for mitigating the local heat island effect and reducing energy use for buildings and vehicle air conditioning during hot periods. This research explored a potential pavement design and management strategy for improving the street thermal environment and mitigating the heat island effect. Through field measurements on pavement test sections with both conventional and alternative designs, the thermal behavior and cooling effect of permeable asphalt pavements under dry and wet conditions were investigated. The overall 7-day average cooling effect of wetting once on permeable pavements for near-surface air was approximately 0.2°C to 0.45°C; for the surface, the temperature was approximately 1.2°C to 1.6°C, and it was approximately 1.5°C to 3.4°C for the in-depth layers. On the basis of these findings, permeable asphalt pavements might be a type of cool pavement that produces lower temperatures and thus helps improve the thermal environment and mitigate the heat island effect. However, attention should be given to this type of pavement under dry conditions. As a pavement thermal management strategy, water from rain or irrigation systems might need to be applied to the pavements to produce a better cooling effect for improving the thermal environment and mitigating the heat island effect.

01501488

13-1115

English

pp 97–107

2013

Transportation Research Record: Journal of the Transportation Research Board

9780309286923

Print

Figures (7) ; References (31) ; Tables (4)

Asphalt pavements; Cooling; Heat islands; Pavement design; Pavement management systems; Permeability; Thermal properties; Weather conditions

Cool pavements; Heat island effect; Permeable pavements

Environment; Highways; Materials; Pavements; I15: Environment; I22: Design of Pavements, Railways and Guideways; I31: Bituminous Binders and Materials

TRIS, TRB, ATRI

Feb 5 2013 12:19PM

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• Effectiveness of Heavier Tack Coat on Field Performance of Open-Graded Friction Course
• Experimental Study of Sustainable Asphalt Binder: Influence of Thermochromic Materials
• Interface Layer Tack Coat Optimization
• Measuring the Influence of Aggregate Coating on the Workability and Moisture Susceptibility of Cold-Mix Asphalt
• Mix Design Factors to Reduce Noise in Hot-Mix Asphalt
• Mixture Design Optimization of Low-Noise Pavements
• Newark Airport Runway: A Forensic Study Revisited
• Use of Cyclic Direct Tension Tests and Digital Imaging Analysis to Evaluate Moisture Susceptibility of Warm-Mix Asphalt Concrete