The Delhi Metro's showcase Airport Express Corridor, connecting the Indira Gandhi International Airport to the heart of the Delhi, was rolled out for the public on the 23rd of February, 2011.
This is the first line in India to be mapped on GIS to enhance safety, maintenance and traffic regulation. Mapping the corridor on GIS will help in mobilising emergency services in case of a blast or fire on the train. Delhi Airport Metro Express Private Limited, the company operating the line, has mapped all the emergency services, including fire stations, police stations, hospitals, etc. along the alignment.