metro networks
Enhancing safety on the Moscow Metro Technology alliance
F
aced with continuous growth in passenger numbers, the Moscow Metro needed to modernize its
radiocommunications to meet the demands of safety and operational effi ciency. Opened in 1935, the Moscow network is the second most heavily used rapid transit system in the world. With 12 lines, 182 stations and more than 300 km of track, it carries between seven and nine million passengers each day. After investigating the available options,
Moscow Metro chose TETRA as the technology which best suited its requirements for security, reliability and the fl exibility to meet changing communication demands in the future. In a project awarded to Integra Pro Co in
Russia, the TetraFlex communication system from Damm Cellular Systems was chosen to provide the TETRA infrastructure. TetraFlex off ers a wide range of integrated software tools, include dispatcher systems, network management tools, voice and data logging and replay facilities, as well as APIs for easy integration with third-party applications. Among the features of the TetraFlex infrastructure highlighted by Damm are
Damm’s TetraFlex technology is already in use in Russia in projects carried out by the Russian network provider and system integrator TetraSvyaz – with which Damm has now formed a strategic alliance.
The Moscow Metro: its lavish architecture makes it one of the city’s tourist attractions
an IP65-protected housing allowed installation within limited spaces in tunnels under harsh environmental conditions, with extremely high temperature and humidity;
a distributed network architecture, which answered the Metro’s requirement for no single point of failure;
easy installation and limitless expansion potential, thanks to its IP-based architecture;
full component redundancy; low power consumption of base stations. Following the success of the initial installation,
Moscow Metro is currently looking into extending the use of the TETRA system to include train control and telemetry data transfers.
In terms of subscriber numbers, TetraSvyaz is one of Russia’s largest communications operators. It has already built TETRA systems based on Damm infrastructure in north- western and central Russia and is bidding for further projects.
“Expanding our co-operation with Damm, world leader TETRA supplier and our strategic partner, lets us gather actual knowledge and successfully use advanced European technologies”, said Alexander
Moldovanov, president of TetraSvyaz.
“TetraSvyaz plans
to expand its services outside of Russia
and provide their own developed competitive applications for fast responding and emergency services.”
On-board radios for Mumbai’s new monorail A
TETRA system has been selected to provide communications for Mumbai’s
showpiece monorail project, the fi rst in India. Complementing the city’s existing public transport network, the monorail is expected to relieve congestion in the area, improve connections and reduce travel time for commuters. Radiocommunications contractor for the
project is Consort Digital, an established TETRA systems integrator, which will be responsible for the supply, installation, integration and commissioning of the entire system. Train-borne radios will be provided
by Sepura, and Consort will integrate then with the on-board systems. Sepura points out that its SRG mobiles offer 10 watts of RF power, providing a superior communications link to the nearest TETRA base stations – an important factor in Mumbai where signals can be obstructed by the city’s dense high-rise buildings. Another feature of the SRG radio is its
support for dual control consoles. With a console at each end of the trains, they can be driven in either direction without the need to move the radio equipment.
A test run on Mumbai’s new monorail line. First phase of the US$540 million project is due to be completed later this year
IP architecture Consort is also installing TETRA network infrastructure from Damm. Based on Damm’s TetraFlex technology, this is a completely IP-based solution with distributed architecture which provides the fault tolerance required in a project of this kind. The Damm TetraFlex equipment is integrated to the telephony network, the public announcement system, on-board train communication system, centralized recording system and signalling system. First phase of the Mumbai Monorail Project consists of two lines extending
20
A project worker from Scomi Engineering makes a call on a Sepura handportable
19 kilometres, with 17 stations. It is being built for the Mumbai Metropolitan Region Development Authority by the Malaysian company Scomi Engineering with its consortium partner Larsen & Toubro. When the service opens this year, the line will be operated with 15 sets of four-car trains running from 5 a.m. to midnight. “Commissioning a high quality and
reliable RCS is vital when meeting Scomi’s requirements for operational safety, reliability and effi ciency for the monorail project”, commented Suhaimi Yaacob, president of Scomi India.
TE TRA TODAY Issue 2 February - April 2011
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