Monorail a bumpy ride,MMRDA says it will soon smoothen out

It would seem the blue,pink and green monorail rakes should sail smoothly over elevated beams but in reality,the monorail ride is a bumpy one,as of now.

Written by Express News Service | Published:March 15, 2013 3:31 am

It would seem the blue,pink and green monorail rakes should sail smoothly over elevated beams but in reality,the monorail ride is a bumpy one,as of now. While a rider can experience constant quivers and occasional jolts,the rake tilts from side to side at curves.

According to the Mumbai Metropolitan Region Development Authority (MMRDA) this will change by the time the Chembur-Wadala monorail is commissioned for public use in August-September.

“There are bumps wherever there are expansion joints. Once concrete beams become smooth,which will happen with time,quality of the ride will be much better,” said PRK Murthy,chief of transport and communications at MMRDA.

The monorail needs to maintain different speeds at different curvatures depending on sharpness of the turn. Monorail captains are still in the process of acquainting themselves with the 8.8-km Chembur-Wadala corridor and speed levels they need to maintain.

“There is also a speed profile that will be given to the train captain digitally,and if he follows it the ride will be smoother,” Murthy said.

The maximum gradient,or steepness,of is about 6 metre every 100 metre,while curves have a radius of about 50 metre.

“In case of quality of ride,the international experience has been the same. Even our independent safety expert did not find the riding experience at this stage unusual. We are conducting constant tests to even it out and make it a more comfortable ride. Even from the time the tests started,we have been able to substantially improve the riding quality,” said Ashwini Bhide,additional metropolitan commissioner.

The MMRDA has roped in Singapore’s mass transit operator,SMRT Corp,as an independent safety auditor for the monorail corridor,India’s first.

Constructed at a height of 8 metre,the monorail gives a bird’s eye view of entire Wadala and Chembur. The ride throws open different aspects of the city,the expanse of slums at Wadala,small clusters of buildings with a shiny blue swimming pool at Bhakti Park,and the sprawling acres of the golf club at Chembur.

The Chembur-Wadala monorail,the construction of which began in February 2009,is nearing completion after a delay of nearly two years. The MMRDA and the contractor,Larsen & Toubro and Malaysia’s Scomi Engineering,expect to commission the corridor for public use by August or September. The 11.2-km second phase from Wadala to Jacob Circle will be commissioned a year later. The monorail tickets will be priced between Rs 9 and Rs 22,for the entire 20-km corridor costing Rs 2,460 crore,excluding taxes.

336 CCTV cameras from Chembur to Jacob Circle

As a security measure,the Chembur to Jacob Circle link will have 336 CCTV cameras. These will be spread across the car depot in Wadala,on stations and inside rakes. There will be about 5 to 6 surveillance cameras at each of the 17 stations and two cameras in every coach. Every monorail rake will be covered by eight surveillance cameras linked not the operations control centre in the car depot. Monorail drivers will also have access to the images.

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