Automation of the Schonfeld Method of Highway Surface Texture Code Assignment. Volume I. Three Dimensional Classification Technique Introduction and Summary.

摘要

The research involved development of a system for measurement and automatic classification of pavement surface texture properties in accordance with the Schonfeld method. Electronic stereophotogrammetric techniques were adapted to obtain digital data defining the surface from stereophotographs. Algorithms were then developed to process this data on a computer and classify the surface texture automatically. Preliminary designs of camera systems,which could be mounted on a highway vehicle and collect the required data,were developed and shown to be feasible. The automated procedure allows a much more comprehensive and detailed investigation of surface texture to be carried out than the previously available manual method. Comprehensive information about pavement texture can provide valuable data for studying skid resistance characteristics and monitoring wear and polishing of pavements.