Review Paper on Precast and Cast in Situ for Metro Project: Innovative Solutions and Challenges in Urban Metro Projects

Abstract

Arguably the most dramatic recent development of urban infrastructure is the introduction ofthe subway as a public transport system. In addition to being the main means of transportation, thesubway has contributed significantly to reducing pollution and improving the quality of life of itscitizens. The vehicle population in urban areas of India is rapidly increasing by While rapidly growingand expanding cities demand more urbanization and housing, new residential colonies and largecommercial facilities are rapidly emerging, all integrated with public transport. need to do it. For civilengineers, metro projects have provided a great opportunity to develop skills and seek innovativesolutions to the difficult problems inherent in large structures in the urban environment. Key designdecisions determine the success of the project in terms of construction speed and quality,environmental impact and structural aesthetic appeal, and cost and economics. This paper describessome of the challenges faced by viaduct structures and how they were overcome in Indian metrostructures through the use of precast concrete construction techniques.