Prof. S.S. Jain, Civil Engineering & Associated Faculty; Yogesh U.Shah, Research Scholar, Centre for Transportation Systems (CTRANS), Indian Institute of Technology Roorkee; Dr. Devesh Tiwari, Scientist E II, Central Road Research Institute (CRRI), New Delhi, and Dr. M.K. Jain, Assistant Professor, Dept. of Hydrology, Indian Institute of Technology, Roorkee.

Introduction

Urban road drainage is one of the key components which needs to be considered along with other parameters for urban pavement management system. Excessive water content in the pavement base, sub-base, and sub-grade soils can cause early distress and lead to a structural or functional failure of pavement, if counter measures are not undertaken. In spite of this, adequate priority for drainage system is rarely accorded, whether it is in the matter of planning, organization, fund allocation or monitoring. Water is also responsible for a large number of non-load related distresses such as: D-cracking in concrete pavements, and accelerated aging and oxidation in asphalt pavements. Therefore, pavement drainage design should be at the forefront of pavement design and not an afterthought.

The inclusion of pavement drainage issues in pavement maintenance management system caters to deal with various aspects like studying the water ingress and egress from pavement structure, water related distresses, methods of controlling water entry in pavements, quantifying the water penetrated the pavement layers, design aspects of surface and sub-surface drainage, modelling & simulation of water movements in pavements, analyzing the effects of drainage on pavement performance and life cycle costing and much more. This article mainly focus on two aspects viz. measurement techniques of water in pavements and drainage modelling and design software's.

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