New Members – Community of Metros Benchmarking Group

Community of Metros News: Chengdu and Chongqing Rail Transit Joined COMET

October 11, 2025March 20, 2025

The TSC is delighted to announce that Chengdu Metro and Chongqing Rail Transit, both based in China, officially joined the COMET community in March.

Chengdu Metro began operations in 2010 and has grown impressively to over 600 kilometres in just 15 years, making it the 4^th largest metro in the world by total network length, following Shanghai, Guangzhou, and Beijing. The system is known for its modern design, with clear digital signage and passenger information systems. It serves an average of 3.5 million passengers daily.

Chongqing Rail Transit operates 12 lines covering more than 550 kilometres. The network includes two high-capacity monorail lines—Lines 2 and 3—which are the longest and busiest monorail lines globally. Their system also features the world’s deepest metro station, located 116 metres underground, showcasing the city’s unique topography and engineering innovation.

We warmly welcome Chengdu and Chongqing to the group and look forward to their contributions to our global metro benchmarking and knowledge-sharing community.

Community of Metros News: Chennai Metro Joins COMET

November 21, 2024October 25, 2024

The TSC warmly welcomes Chennai Metro who recently joined COMET to become the third Indian metro in the group after New Delhi and Bengaluru.

Chennai city houses more than one-third of India’s automobile industry and is one of the leading IT hubs in India. Chennai Metro started revenue service in 2015. Currently the system consists of two lines and 41 stations, spanning 54.1 km. The existing ridership is approximately 300,000 a day. Unlike most other Asian metros, Chennai Metro outsources most of its operations and maintenance work.

Community of Metros News: Atlanta MARTA Joins COMET

August 29, 2023April 21, 2023

Transport Strategy Centre (TSC) is delighted to announce that MARTA (Metropolitan Atlanta Rapid Transit Authority) has recently joined COMET becoming the newest member. MARTA, serving the city of Atlanta, Georgia (USA), has been providing public transportation services since 1979. The rapid transit system has 77km of network and 38 stations located on four lines – Red, Gold, Blue and Green Line. The headway at weekday peak hours is currently 15 minutes. Increase of the peak hour frequency to every 12 minutes is planned to launch later this year.

Community of Metros News: Honolulu Rapid Transit Joins

July 28, 2022May 28, 2022

Honolulu Rapid Transit has joined COMET as its newest member. It is the first member to join that is currently under construction, and is both the first driverless metro system in the United States and the first system to be equipped with Platform Screen Doors. The project’s first phase is due to open towards the end of 2022. When complete, the system will comprise 32km of mainly elevated metro, with 21 stations. The system will be integrated with the city’s bus network and customers will be able to use a single smartcard to travel on both rail and bus.

Source: HART

Community of Metros News: PATH Joins COMET

July 28, 2022April 7, 2022

The Port Authority Trans-Hudson (PATH) system has joined COMET in April 2022 as the group’s newest member. PATH consists of 22.2km of network length in north-east New Jersey and New York City in the United States. It is operated and owned by the Port Authority of New York and New Jersey.

Source: PATH

PATH joins among the oldest metro systems in the world in COMET having opened in 1908. It is the only other COMET metro (alongside the New York City Subway operated by New York City Transit) to operate 24/7 service. It operates four services with a daily ridership of around 300,000. The organisation has been implementing its PATH Improvement Plan since 2019, adding more trains, reducing delays and improving customer experience for passengers.

Community of Metros News: MRT Jakarta Joins COMET

December 9, 2021September 30, 2021

MRT Jakarta joined COMET in September 2021 as the group’s newest member. Jakarta is the capital city of Indonesia, the largest city in south-east Asia and among the most populated cities in the world. The organisation currently operates one line, the North South Line, comprising 15.7km and 13 stations.

The North South Line is part of the MRT’s first phase of development. All stations have Platform Screen Doors (PSDs): half-height doors at elevated stations and full-height doors at underground stations. The next stages of the metro’s development will be two extensions to the North South Line (adding 11km and 10 stations), as well as a second East West Line.

Community of Metros News: Bangalore BMRCL Joins

March 16, 2021February 24, 2020

Bangalore Metro Rail Corporation Limited (BMRCL) has joined the Nova group of metros. BMRCL constructs and operates the Namma Metro (which means ‘Our Metro’) which serves Bangalore, the capital of India’s southern Karnataka state and the third most populous city in the country.

The first part of the system opened in 2011, and Phase 1 was completed in 2017. The system now features 42.3km that is 80% elevated and 20% underground on two lines: Purple (east-west) and Green (north-south). There are 40 stations and an estimated approximately 130m annual passenger journeys. Phase 2 is now under construction, with sections expected to open between now and 2023 that extend both existing lines and add three new lines (with an additional 93km).

Community of Metros News: Tokyo Metro Joins CoMET

March 16, 2021January 22, 2020

Tokyo Metro has joined the CoMET group of metros. Their system is the oldest in Asia, dating to 1927 with the opening of the Ginza Line. Privatised in 2004, Tokyo Metro is owned by the national and metropolitan governments. The Tokyo Metro network is 195.1km with 179 stations on 9 lines and is renowned for its punctuality. Annual passenger journeys are estimated at more than 2.2 billion, making Tokyo Metro among the densest metros in the world.

Tokyo Metro’s first two lines, the 1927 Ginza Line and 1954 Marunouchi Line, operate on standard gauge track with third rail power and are independent. The rest of the network operates on narrow gauge (1067mm) like the mainline railway network in Japan, with overhead power and operate through services connecting to various suburban railways. We look forward to working with Tokyo Metro on benchmarking going forward.

Community of Metros News: Sydney Metro Joins Nova

March 16, 2021December 29, 2019

Sydney Metro has joined the Nova group of metros. It is a new fully automated (GoA4) metro system being built in Sydney, Australia’s largest city. The first section, known as Sydney Metro Northwest, opened in May 2019 with a 4-minute peak headway. The initial segment features 23km and 8 stations newly built and the existing 13km, 5-station Epping to Chatswood rail link (which opened in 2009 and was operated by Sydney Trains until closing in September 2018 for metro conversion).

Currently passengers interchange onto Sydney Trains services at Epping and Chatswood to continue to central Sydney, but Sydney Metro City & Southwest is currently under construction and will extend the line a total of 31km, including a new tunnel under Sydney Harbour and the Central Business District and the takeover of another existing Sydney Trains line in the southwest area, scheduled for 2024.

Community of Metros News: OC Transpo Joins

March 5, 2020May 15, 2019

OC Transpo in Ottawa, Canada has joined the Nova group of metros as part of the North American Sub-Group. OC Transpo (the Ottawa-Carleton Transportation Commission) is the public transport provider for Ottawa, which is Canada’s capital and 4th largest city. OC Transpo is known for having an extensive busway network constructed and opened in the 1980s and 1990s. This network reached capacity in the early 2000s and is now being partly replaced by a new light metro line. At a city-wide level, public transport carries 22% of all morning peak travel in the city.

O-Train Line 1 (the Confederation Line) has 13 stations along a 12.5-km grade separated corridor that includes 3 underground stations in a 2.5-km tunnel through the city centre. The line will operate 100m-long trains at 3-min peak headways using ATO. Construction is beginning on extensions at both ends of the line that will add 27.5km and 16 stations by 2025.