Design & Analysis of Different Elements of Delhi – Amritsar – Katra Greenfield Expressway

Abstract

The Project road Delhi – Amritsar – Katra Greenfield Expressway has an approximate length of 600 Km including spurs and the project road is named NE5. And Phase 1 of the Project road is all Greenfield Expressway (To promote development in undeveloped areas, lower the cost of acquiring land, and speed up construction, Greenfield Expressways are planned to avoid populated areas and follow new alignments.) and Phase -2 of the project road is a combination of Greenfield And Brownfield Expressway. On the Delhi-Amritsar-Katra Greenfield Expressway, a new type of pavement has been introduced called Perpetual Pavement, which has a design life of more than 30 years. The design of Perpetual Pavement has been as per the guidelines of IRC 37 (Equations like MSA calculation, Fatigue model, Rutting model etc). IITPAVE has been used to check the actual strains developed on the road and compare them with the allowable strains, which is 80 microns for Horizontal Tensile Strain and 200 microns for Vertical Compressive Strain. If the actual strain were to be less than the allowable strain, then only the proposed thickness would be adopted for the construction. For the design of the geometry of the road, MXROAD is used. The Specifications of the IRC: SP:99-2013 are used for the geometric design of the road (Design Speed, Minimum Length of Transition Curve, Safe Sight Distance, Gradient, Minimum Length of Vertical Curve).