Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6426598 | Cold Regions Science and Technology | 2016 | 9 Pages |
Abstract
High albedo road surfaces can be used to reduce the amount of heat absorbed by a pavement in order to limit the degradation of the permafrost under paved embankments. A model based on a simplified energy balance at the surface of a pavement is proposed to calculate the temperature of high albedo surfaces in order to assess their effectiveness. The model is validated using data from a test section built on the Alaska Highway near Beaver Creek, Yukon, Canada. The temperatures of four surfaces with different albedo were monitored for a year at the test section. The input data required for the model are the albedo of the surface, the incoming solar radiation, the air temperature and the wind speed. A set of design charts based on the radiation index and supported by the model are presented.
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Earth and Planetary Sciences (General)
Authors
Simon Dumais, Guy Doré,