The stiff challenge facing the Indira Gandhi International Airport, Delhi was to increase the capacity of the existing terminal building without causing inconvenience to the passengers.
Delhi International Airport Limited, a joint venture company formed by the GMR Group, Airports Authority of India (AAI), Fraport and Malaysian Airport Holdings, was selected in 2006 for modernisation and upgradation of the Indira Gandhi International airport in New Delhi. DIAL had been given the mandate to build, operate and maintain the airport for 30 years, extendable by another 30 years. As part of the project, a new terminal had to be completed before the Delhi Commonwealth Games.
The most significant part of the project was the construction of the terminal building, which comprises of the passenger terminal building (PTB) and two pier buildings for international and domestic flights. PTB includes various services such as baggage handling system, retail area, restaurants etc. The airport has been designed to be environment friendly. It gets ample amount of natural light and has been provided with a sewage treatment plant with zero discharge and 310 rain harvesting pits to ensure no wastage of water.
Use of geospatial technology
Developing an airport of this magnitude, right from concept to completion was no easy task. Apart from regular design deliverables such as drawings, surveys, geotechnical investigations and obtaining necessary approvals, the project involved coordination among a team of nearly 400 design engineers, over 15 global consultants, 10 local consultants and several sub-contractors. Given the complexity involved in the project, Building Information Modelling (BIM) software was used. The software allows users to extract different views of a building model. These views are automatically consistent, which means that the objects are all of consistent size, location and specification. By building designs in real-time 3D dynamic building models, the designers were not only able to visualise better but also eliminate many uncertainties that are faced by the builders in large scale infrastructure projects. Moreover, BIM required the designers to follow a certain set of rules, hence allowing each design to be shared, compared, analysed and overlaid on each other. This enabled quick incorporation of changes, thus speeding up the process of construction by facilitating better understanding and coordination.
The tireless efforts of various parties involved in the construction of the terminal bore fruit as T3 was completed in just 37 months and is considered as one of the fastest built international airport terminals in the world. The mega terminal can handle about 34 million passengers per annum. With this project, IGIA also joined the league of airports that can operate the world’s largest passenger aircraft, the Airbus A-380. The project is being reported as one of the world’s best infrastructure projects.
Source: ECC Concord, wikipedia and newdelhiairport.in