EVOLUTION STUDY OF THE PAVEMENT STRUCTURAL INDICATOR BASED ON EVENNESS AND DEFLECTION RESULTS USING A GIS TOOL MAPPING

Abstract

The pavement structural condition analysis is an essential parameter for evaluating the comfort, quality, durability, and preventing future road maintenance scenarios. It must be based on the analysis, collection, and abstraction of a road database related to inspections and studies performed. From this perspective, road monitoring network has always been a complex process. The present paper proposes a GIS approach for the visualization and the interpretation of different pavement structural deteriorations based on the analysis of the road inspection results using LACROIX Deflectograph and longitudinal profile analyzer measurements. The study location is at (439617, 099607; 358252, 3626787) to (478570, 08923; 364436, 6971297) covers a 50 km length of the Moroccan National Road number 06 connecting Meknes and Khemisset cities. The data is represented in four deterioration levels using a matrix fixed by the Moroccan method to classify the equi-quality sections, one hand, on the other, to quantify the pavement structural indicator (STI), to model them in the form of georeferenced thematic maps using a Geographic Information System (GIS) tool. The present study aims to establish a cartographic representation of the pavement structural indicator too making needs, optimization, and predict the maintenance costs.