The concept of a metro railway for Delhi first emerged from a traffic and travel characteristics study which was carried out in the city in 1969.Over the next several years, many official committees by a variety of government departments were commissioned to examine issues related to technology, route alignment and governmental jurisdiction.In 1984, the Delhi Development Authority and the Urban Arts Commission came up with a proposal for developing a multi-modal transport system, which would consist of constructing three underground mass rapid transit corridors as well augmenting the city's existing suburban railway and road transport networks.
While extensive technical studies and search for financing the project were in progress, the city expanded significantly resulting in a twofold rise in population and a fivefold rise in the number of vehicles between 1981 and 1998.Consequently, traffic congestion and pollution soared, as an increasing number of commuters took to private vehicles with the existing bus system unable to bear the load.An attempt at privatising the bus transport system in 1992 merely compounded the problem, with inexperienced operators plying poorly maintained, noisy and polluting buses on lengthy routes, resulting in long waiting times, unreliable service, extreme overcrowding, unqualified drivers, speeding and reckless driving.To rectify the situation, the Government of India and the Government of Delhi jointly set up a company called the Delhi Metro Rail Corporation (DMRC) on March 5, 1995 with E. Sreedharan as the managing director.
The Delhi Metro is being built in phases. Phase I completed 65.11 km (40.46 mi) of route length, of which 13.01 km (8.08 mi) is underground and 52.10 km (32.37 mi) surface or elevated. The inauguration of the Indraprastha–Barakhamba Road corridor of the Blue Line marked the completion of Phase I on October 27, 2006.Phase II of the network comprises 128 km (80 mi) of route length and 79 stations, and is presently under construction, with the first section opened in June 2008 and a target completion date of 2010.Phases III (112 km) and IV (108.5 km) are planned to be completed by 2015 and 2021 respectively, with the network spanning 413 km (257 mi) by then.
The Delhi Metro uses cab signalling along with a centralised automatic train control system consisting of automatic train operation, Automatic Train Protection and automatic train signalling modules.A 380 MHz digital trunked TETRA radio communication system from Motorola is used on all 3 lines to carry both voice and data information.For Line 3, Siemens Transportation Systems has supplied the electronic interlocking Sicas, the operation control system Vicos OC 500 and the automation control system LZB 700 M.[An integrated system comprising optical fibre cable, on-train radio, CCTV, and a centralised clock and public address system is used for telecommunication during train operations as well as emergencies.
The Delhi Metro has won awards for environmentally friendly practices from organisations including the United Nations,[RINA,[and the International Organization for Standardization,becoming the second metro in the world, after the New York City Subway, to be ISO 14001 certified for environmentally friendly construction.[Most of the Metro stations on the Blue Line conduct rainwater harvesting as an environmental protection measure.It is also the first railway project in the world to earn carbon credits after being registered with the United Nations under the Clean Development Mechanism,and has so far earned 400,000 carbon credits by saving energy through the use of regenerative braking systems on its trains.
Send your Suggestion and feedback at-
flixwave@gmail.com
No comments:
Post a Comment