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International Journal of Geophysics
Volume 2011 (2011), Article ID 514970, 8 pages
http://dx.doi.org/10.1155/2011/514970
Research Article

Road Networks Winter Risk Estimation Using On-Board Uncooled Infrared Camera for Surface Temperature Measurements over Two Lanes

1CETE de l'Est-ERA 31, 71 rue de la Grande Haie, Tomblaine 54510, Nancy, France
2CERTES, Université Paris-Est, 61 avenue du Général de Gaulle, 94010 Créteil Cedex, France
3IFSTTAR, Université Nantes Angers Le Mans, Route de Bouaye, CS4, 44344 Bouguenais Cedex, France

Received 18 February 2011; Revised 17 May 2011; Accepted 18 May 2011

Academic Editor: Nicola Masini

Copyright © 2011 M. Marchetti et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Thermal mapping has been implemented since the late eighties to establish the susceptibility of road networks to ice occurrence with measurements from a radiometer and some atmospheric parameters. They are usually done before dawn during wintertime when the road energy is dissipated. The objective of this study was to establish if an infrared camera could improve the determination of ice road susceptibility, to build a new winter risk index, to improve the measurements rate, and to analyze its consistency with seasons and infrastructures environment. Data analysis obtained from the conventional approved radiometer sensing technique and the infrared camera has shown great similarities. A comparison was made with promising perspectives. The measurement rate to analyse a given road network could be increased by a factor two.