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Sensors 2008, 8(2), 1278-1296; doi:10.3390/s8021278

Road Asphalt Pavements Analyzed by Airborne Thermal Remote Sensing: Preliminary Results of the Venice Highway

1,* , 2
1, 3
Received: 5 February 2008 / Accepted: 21 February 2008 / Published: 22 February 2008
(This article belongs to the Special Issue Sensors for Urban Environmental Monitoring)
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This paper describes a fast procedure for evaluating asphalt pavement surface defects using airborne emissivity data. To develop this procedure, we used airborne multispectral emissivity data covering an urban test area close to Venice (Italy).For this study, we first identify and select the roads’ asphalt pavements on Multispectral Infrared Visible Imaging Spectrometer (MIVIS) imagery using a segmentation procedure. Next, since in asphalt pavements the surface defects are strictly related to the decrease of oily components that cause an increase of the abundance of surfacing limestone, the diagnostic absorption emissivity peak at 11.2μm of the limestone was used for retrieving from MIVIS emissivity data the areas exhibiting defects on asphalt pavements surface.The results showed that MIVIS emissivity allows establishing a threshold that points out those asphalt road sites on which a check for a maintenance intervention is required. Therefore, this technique can supply local government authorities an efficient, rapid and repeatable road mapping procedure providing the location of the asphalt pavements to be checked.
Keywords: urban environmental monitoring; thermal remote sensing; object-oriented urban environmental monitoring; thermal remote sensing; object-oriented
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.

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Pascucci, S.; Bassani, C.; Palombo, A.; Poscolieri, M.; Cavalli, R. Road Asphalt Pavements Analyzed by Airborne Thermal Remote Sensing: Preliminary Results of the Venice Highway. Sensors 2008, 8, 1278-1296.

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