Evaluation of flexible pavement performance based on HDM-4 and international roughness index

Abstract

The HDM-4 aids in estimating the deterioration of the pavement as well as the intricate interactions between the environment, vehicles, the surface, and the structure of the pavement. It predicts how the roads will deteriorate over time due to the increased traffic. The current study was carried out at Hyderabad, particularly roads which are subjected to the heavy traffic. The study was adopted for Dhulapally to Bahadurpally (DB), Gandimaisamma to Bowrampet (GB), Gandimaisamma to Medchal (GM), and Kompally to Dhulapally (KD). Among these roads commonly observed distress was collected like patches, alligator cracking, pothole, rutting, and edge drop etc. This papers describes the current and future performance of the roads (10 years), the progress of the distress were predicted using the HDM-4. The study addresses the major causes of distress and their reasons of given section. The study concluded the prediction of pavement life for 10 years in terms of IRI values of the different sections. The study revealed the failure of roads section due to distress for the period of 10 years with and without maintenance, it also helps in decision making for apply further maintenance treatment of this particular routes.

Keywords

• patches
• potholes
• rutting
• alligator cracking
• iri
• and hdm-4