Train Management System (TMS) to monitor Metro trains

Monitoring an en-route train got will become easier from Thursday with Metro Railway installing a new Train Management System (TMS) which incorporates a networked data logger to automatically chart their positions. Officials say that this system will enable them to prevent unnecessary delays. This is essential as trains run at five-minute intervals during the morning and evening peak hours and even a minutes delay services during the morning and evening peak hours are at five-minute intervals. Even a delay of a minute can throw the schedule haywire.

According to them, the TMS is a precursor to the proposed Train Protection and Warning System (TPWS) which will be introduced by September this year. If the new system functions properly, there will be relief for commuters who have to suffer at times due to disruption in services.

This train management system will help the data-loggers log down the exact time of the arrival and departure of the train to and from each station with the help of the ‘track circuit’ – an electrical device in the form of a censor installed on the railway tracks to detect the movement of the train along the track and thus provide information to the signallers. “It will be like the black-box of the metro trains. It will automatically log down the exact time and send the details to the data-loggers. Earlier, it was not possible to do it manually,” said Protyush Ghosh, DGMG,Metro Railway.

Each station has also got a video camera installed to under this system.The data-loggers can also get the panoramic view of all the 23 platforms and real time line diagram display of train movement between throughout the DumDum to New Garia metro route on a 67 -inches Large Video Wall System. In case there is a congestion on the route, it will be easy to regulate the glitches and avoid undue detentions of the following trains.

Despite the video monitoring on every station , this system cannot help control the metro suicide cases. “We have to depend on our staff to control the suicides manually,” said PB Murthy, outgoing general manager, Metro Railway. Metro Railway also plans to get 50 more trains by the end of fiscal year to smoothly implement the proposed services run at 4-minutes interval, as proposed by railway minister Mukul Roy. Metro now runs 270 services every day.

Railways move to ensure zero mishaps

The rise in train mishaps has prompted the Ministry of Railways to follow Mumbai’s example and install a train protection and warning system (TPWS) in trains across the country.

However, the TPWS chosen for this exercise is a much advanced European version of train safety and will ensure zero accidents.
The Auxiliary Warning System (AWS), an old version of TPWS, has been operational in Mumbai’s Central and Western Railways for the past 15 years and there have been very few major accidents.

The national rollout plan released this month aims to complete the installation in three phases between 2013 and 2020 and will cover automatic signalling sections and high-density routes.
In phase one, 500km of the section between Mumbai Central-Virar-Vadodara and Ahmedabad have been included. The cost for the installation is estimated to be nearly Rs50 lakh per kilometre.

The decision comes after the railways set up a high-level safety committee comprising experts like former Atomic Energy Commission chairman Anil Kakodkar and DMRC chief E Sreedharan to conduct a safety audit and plug loopholes in the system.

While one of the components of the TPWS will be installed in the cabin of the locomotive or the train, another component is to be fitted along the rail tracks. The TPWS will take care of “human error” that, as per railway records, are responsible for around 60% of all train accidents.

Trials of TPWS have been underway on the 200-km Delhi-Agra route and the 60 km Chennai-Gumudipundi route under a pilot project for which the railways had earmarked Rs 250 crore.

The TPWS, common in trains across the UK, will be an additional safety feature for trains as they automatically activate brakes on a train that is speeding.

Konkan Railway plan
The anti-collision device (ACD) developed by Konkan Railway has taken a backseat after the railways gave preference to the European train protection warning system.

But railway engineers are in favour of the anti-collision device.
TPWS is not only expensive but also less efficient compared to the ACD system, said railway engineers. ACD is a no-signal equipment having superior wide-area safety-enhancing capability, while costing much less, they said.

Published in: on December 18, 2011 at 12:04 pm  Leave a Comment  
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European tracking system to prevent rail accidents

Faced with recurring train mishaps, Railways has expedited the process for installing the Train Protection and Warning System (TPWS) – an advanced European technology – on an 800-km long stretch.

Estimated to cost about Rs 50 lakh per km, the TPWS technology ensures automatic application of emergency brakes in case the loco driver jumps a red signal.

“The TPWS trial is at the final stage and we are planning to install TPWS after certain modifications in the rail routes which have automatic signalling system,” a senior Railway Ministry official said.