Navi Mumbai Metro, India
Navi Mumbai Metro is a new mass rapid transit railway project under construction in the Indian state of Maharashtra. It is aimed at connecting the suburbs of the city of Navi Mumbai. City and Industrial Development Corporation (Cidco) of Maharashtra is developing the metro rail to meet commercial, industrial and residential needs of the metropolis.
The master plan for the project was developed by Delhi Metro Rail Corporation (DMRC) from June 2008 to November 2009. The 117.3km project is being built in phases and comprises six elevated railway corridors. It is expected to serve up to 35,000 passengers in each direction during peak hours.
Navi Mumbai has a population of more than 2.6 million with main transport modes being taxis, auto rickshaws, buses operated by Navi Mumbai Municipal Transport (NMMT) and parts of the Mumbai Suburban Railway network.
The metro for Navi Mumbai was conceived as early as 1992 to improve the railway connectivity within the city and meet the fast-growing residential and commercial demands.
After delays, a tripartite agreement was signed by the Cidco, Indian Railways and the Maharashtra Government in August 2011 to construct the project.
The Navi Mumbai Metro is different from the Mumbai Metro being developed by Mumbai Metropolitan Region Development Authority. The two metros serve different regions within the greater Mumbai.
Routes and corridors on the Navi Mumbai Metro line
Corridor one is a 28.3km railway line connecting Nerul and Belapur with Uran passing through Ranjanpada and Seawood. Corridor two is a 21.45km stretch between Belapur and Khandeshwar, with a planned extension to the proposed Navi Mumbai International Airport. It will run through Kalamboli, Taloje and Kharghar.
Navi Mumbai Metro Corridor three is a 25km stretch between Vashi and Panvel via Nerul. The planned Corridor four will connect Ranjanpada with Seawoods. It is a 14km project.
The 20km long Corridor five will connect Dighe and Belapur, passing through Turbhe. Corridor six is a 9km stretch between Vashi with terminus at Mhape and passes through Ghansoli.
Mass rapid transit railway project details
The Nerul-Uran Corridor one project was proposed to be constructed in 1996-97 at an estimated cost of about INR4.96bn ($101m). It is now estimated to be INR14.12bn ($288.5m).
The cost escalation was due to delays, revision of plans, new additions and specification improvements. It will be jointly shared between the Cidco (INR9.46bn) and the Ministry of Railways (INR4.66bn). The Nerul and Belapur to Uran stretch is being developed in three phases. Construction of the corridor began in October 2011 and the line is expected to become operational by 2015.
Corridor two is an INR41.63bn ($822.8m) project and is being built in three phases. Work on the Belapur-Khandeshwar line was started in May 2011. It is expected to be completed by 2014. General consultant for the project is a consortium of Louis Berger Group and Balaji Railroad Systems. Nagarjuna Construction Company and J Kumar Infraprojects are the general contractors.
Contracts for construction of stations, signalling and communications, automated fare collection, rolling stock, tracks and traction are expected to be awarded in December 2012.
Infrastructure of the Indian metro rail project
Corridor one will have ten stations at Seawoods, Sagar Sangam, Targhar, Bamandongri, Kharkopar, Gavan, Ranjanpada, Nhava-Sheva, Dronagiri and Uran. The project includes construction of five road-over bridges, 15 road-under bridges and a track under bridge.
Larsen & Toubro (L&T) will rebuild the station at Seawoods. The project is cost about INR15bn ($326m).
The elevated Corridor two will have 20 stations. An automated fare collection with gates is also planned at every station.
The project will include construction of segmental box girder type viaducts, elevated stations and a depot-workshop for rolling stock near Panchanand. The depot will consist of a training centre, Operational Control Centre (OCC), schedule maintenance facilities and administrative buildings. A 25kV AC overhead current collection system will be used for train traction.
Rolling stock on the Maharashtra metro line
The project will utilise stainless steel Medium Rail Vehicles. The proposed train configurations include a three car train (driver motor car, trailer car, driver motor car) and a six-car train in the future (driver motor car, trailer car, motor car, motor car, trailer car, driver motor car).
The 3.9m high and 2.9m wide coach will have longitudinal seating arrangement for maximising the capacity. The trains will run on standard gauge of 1,435mm with speeds ranging between 35-85km/h.
The planned communication systems include Close Circuit TV, public information display systems, radio systems, telephones and public announcements.
A continuous automatic train control system is also planned. It will provide automatic supervision, protection and operation of the trains.