The city has developed a highly efficient public transport system with the introduction of the Delhi Metro,[1] which is undergoing a rapid modernization and expansion since 2006.
Delhi and NCR lose nearly 42 crore (420 million) man-hours every month while commuting between home and office through public transport, due to the traffic congestion.
[5] But with the growing city, it soon proved inadequate, thus Delhi Transport Corporation (DTC) bus system was established in May 1948.
The next big leap in city transport was the opening of Delhi Metro, a rapid transit system in 2002.
Other means of transit include suburban railways, inter-state bus services and private taxis which can be rented for various purposes.
However, buses continue to be the most popular means of transportation for intra-city travel, catering to about 60% of the total commuting requirements.
The only international rail service in Delhi was the Samjhauta Express to Lahore,which was stopped in 2019 following a standoff.
Major road-based public transport facilities in Delhi are provided by DTC buses, auto-rickshaws, taxis and cycle-rickshaws.
Delhi Transport Corporation (DTC) operates the world's largest fleet of CNG-powered buses.
After Pune, Delhi was the second city in India to have an operational Bus rapid transit (BRT) system.
[12] The Delhi Government has decided to expedite this process and will procure 6,600 low floor buses for the DTC by commonwealth games next year in mid 2020.
Of late, they have been phased out from the congested areas of Chandni Chowk because of their slow pace, which often leads to traffic snarls on the streets of Old Delhi.
It is a 51 km long circular road, which connects Northern, eastern, Western and Southern areas in Delhi.
The road has already achieved its carrying capacity of 110000 vehicles per day and would require an addition of more lanes to fulfill needs of increasing traffic by 2011.
The road which was almost neglected till the early 2000s is now an important highway that links far-flung areas of Delhi.
The road is 6-8 lane and has grade-separators and a large number are under construction as a part of project to make the artery signal free.
As the Commonwealth Village is located close by Yamuna bridge on this highway, underpasses and flyover being built will help facilitate traffic between the eastern areas of Delhi/ Western UP and the rest of the city.
Rail based transport in the city has started to gain popularity with the introduction of Delhi Metro.
Ring-Railway, which runs parallel to the Ring-Road system is another rail-based intra-city transport facility in Delhi.
Its circular route is 35 km (22 mi) long, which the trains takes 90–120 minutes to complete, both clockwise and anti-clockwise, via the Hazrat Nizamuddin Railway Station.
A large number of local passenger trains connect Delhi to its sub-urban areas and thus provide convenient travel for daily commuters.
Delhi Transport Infrastructure Development Corporation Limited (DTIDC) operates 4 major Inter-State Bus Terminals (ISBT):[30] Indira Gandhi International Airport (IGI) serves Delhi for both domestic and international connections, and is situated in the southwestern corner of the city, alongside Delhi-Gurgaon Expressway.
The new Terminal T3 was inaugurated in 2010 in line of the historic Commonwealth Games being held and Delhi is today India's only city to have an airport of this size.
The airport, being named as Taj International Aviation Hub, is proposed to be located in Jewar in Greater Noida.
This stretch of the river has 14 bridges (nine of them for road traffic), including those built by Delhi Metro (4) and Indian Railways (1).