Arguably the Most Spectacular Recent Development In Urban Infrastructure Has Been The
Introduction of the Metro As a Public Transport System. In Addition to Being the Main Means Of
Transportation, the Subway Has Greatly Contributed to Reducing Pollution and Improving the Quality of Life
Of the People Here. Vehicle Fleets In Urban Areas of India Are Growing Rapidly. As Cities Grow and Expand
Rapidly Demanding More Urbanization and Housing, New Residential Areas and Large Commercial
Establishments Are Rapidly Emerging, All Integrated With Public Transport. Need to Do That. For Civil
Engineers, Metro Projects Provide an Excellent Opportunity to Develop Skills and Find Creative Solutions
To Difficult Problems Inherent In Large Constructions In the Environment. Urban. Critical Design Decisions
Determine Project Success In Terms of Speed and Quality of Construction, Impact on the Environment And
The Aesthetics of the Structure, As Well As Cost and Economy. This Paper Describes some of The
Challenges Faced By Viaduct Structures and How They Have Been Overcome In Indian Metro Structures
Through the Use of Precast Concrete Construction Techniques.