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  Specimens of typical road aggregates were photographed, using a line scan camera system, before and after artificial polishing. Images of the aggregates in the different states of polish were examined automatically, by developing bespoke software, to assess if a change in the microtexture could be detected and linked to the measured change in friction on the specimen surface. The method for analysis, including masking of the image to isolate aggregate surfaces, and the algorithms that examine changes in image intensity, are briefly described. The correlation between parameters determined from image analysis and friction measurements on the specimens is presented.
   
content link: http://www.transportresearchfoundation.co.uk/PDF/Contactless%20microtexture%2006_07%20article%20ver310108.PDF
   
content language: English
English summary: no
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29.12.2009 Haider, Manfred tyrosafe relevant
This content is related to:
 
project type
National projects 
area of interest
 safety
 road surface properties
 SAFETY & SECURITY
user type
research labs 
industry 
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