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Blog Entry# 1938090  
Posted: Jul 22 2016 (20:26)

1 Responses
Last Response: Jul 22 2016 (20:26)
Rail News
Commentary/Human InterestBMRC/Bangalore Metro  -  
Jul 22 2016 (10:02)   What ails the Airport Metro link?

KSG   3435 news posts
Entry# 1938090   News Entry# 274479         Tags   Past Edits
What ails the Airport Metro link? Rasheed Kappan July 17, 2016, DHNS
Namma Metro connectivity to the Kempegowda International Airport (KIA) has been in the pipeline for several years now. But clarity eludes this critical link even nine years after the commercial launch of the airport. There are now indications that the second phase of the Metro project will have an extenstion to the airport, although the exact alignment is yet to be finalised.
Engineering consultancy firm, RITES has already prepared a feasibility report on the link line, recommeding five alignments. The most
feasibile option could be an extension of the Gottigere to Nagawara line under Phase-II. But this 21.25-km line has a 13.79-km underground stretch which could prove tricky in speedy completion of the project.
Faced with the hard rock problems on the Chickpet-Majestic and Majestic-Mantri underground stretches, the Bangalore Metro Rail Corporation (BMRCL) is wary about tunnelling issues. Only when the Gottigere-Nagawara line is fully complete can the Airport extension make sense.
Experts are convinced that the Airport link from the Nagawara side will take years. However, BMRCL officials feel they can accelerate the work if the tunnelling job is entrusted to multiple contractors. Simply put, this would mean several Tunnel Boring Machines (TBMs) working in tandem at different underground station points.
What is a better, quicker alternative? Is a Metro line along Airport Road a viable option? The now-on, now-off High-Speed Rail Link (HSRL) was designed to take this path. But, as urban rail analyst, Sanjeev Dyamannavar points out, there are big issues with this route.
An elevated Metro line would mean cutting short the runway and eventual closure of the Government Flying Training School at Jakkur. This problem becomes even more pronounced on Airport Road along the Yelahanka Air Force Station. “The Air Force will definitely not allow that elevation so close to its important base. The only option will be to go underground for a minimum of 4-5 km,” explains Dyamannavar. Inevitably, going below the ground will escalate the project cost.
Bangalore International Airport Limited (BIAL) had ruled out a second entry to the airport from the Southern side, citing construction of its second runway along that direction. This contention could apply to a Metro link extended from Nagawara.
But aviation experts have an easy solution to this: Take the Metro line under the runway and extend it all the way to the terminal. This model has been perfected in airports across the world.

Jul 22 2016 (20:26)
irifan2015   459 blog posts
Re# 1938090-1            Tags   Past Edits
Why can't our people think of simpler alternatives? Why can't we have a railway station between Dodjala and Devanahalli? Anyway, rly line is on the border of BIAL area? From there, BMTC can run feeder service to airport (3-4 kms), just like in Delhi.
Instead of wasting crores of rupees for digging up the city and creating problems, this should be thought of.

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