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Metro Stations in Bengaluru.pdf - Apurva Bose Dutta

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NBM&CW February 2010<br />

February 2010<br />

MONTHLY<br />

Vol.15, Issue-8<br />

ISSN 0973 - 0591<br />

New Build<strong>in</strong>g Materials<br />

& Construction World<br />

NBM&CW<br />

Rs 100/-<br />

NEWS EVENTS REAL ESTATE SEZs PROJECT BRIEFS NEW PRODUCTS<br />

Cover Story<br />

Repair & Rehabilitation<br />

www.nbmcw.com<br />

Project Reports:<br />

<strong>Metro</strong> <strong>Stations</strong> <strong>in</strong> <strong>Bengaluru</strong><br />

DLF IT Park, , Noida


Project Report<br />

<strong>Metro</strong>s <strong>Stations</strong> at <strong>Bengaluru</strong><br />

<strong>Apurva</strong> <strong>Bose</strong> <strong>Dutta</strong>,<br />

Architect, <strong>Bengaluru</strong><br />

Photo courtesy:<br />

DKA Architects<br />

An Introduction to<br />

the <strong>Bengaluru</strong> <strong>Metro</strong><br />

India is fast approach<strong>in</strong>g<br />

Urbanisation - with rapid growth <strong>in</strong><br />

population and <strong>in</strong> an attempt to<br />

decongest crowds, metros <strong>in</strong> major<br />

cities of the country are spr<strong>in</strong>g<strong>in</strong>g<br />

up. With Kolkata and Delhi already<br />

experienc<strong>in</strong>g the benefits of rapid<br />

transit system, a number of Indian<br />

cities <strong>in</strong>clud<strong>in</strong>g <strong>Bengaluru</strong>, Chennai,<br />

Hyderabad and Mumbai are fast on<br />

the track to atta<strong>in</strong> the same.<br />

<strong>Bengaluru</strong> - India’s Silicon Valley<br />

stands tall amongst the cities which<br />

are brimm<strong>in</strong>g with metro work go<strong>in</strong>g<br />

on <strong>in</strong> full vigour. Apparently, several<br />

76 NBM&CW FEBRUARY 2010


2005 and the Union Government <strong>in</strong><br />

2006, the Bangalore <strong>Metro</strong> Rail<br />

Corporation Limited (BMRCL) was<br />

founded <strong>in</strong> 2006 as a jo<strong>in</strong>t venture<br />

between the Government of India<br />

and the Government of Karnataka<br />

for the implementation of Bangalore<br />

<strong>Metro</strong> Rail system. The East-West<br />

Corridor start<strong>in</strong>g from Byappanahalli<br />

will term<strong>in</strong>ate at the Mysore Road<br />

Term<strong>in</strong>al whereas the North-South<br />

Corridor will beg<strong>in</strong> at the<br />

Hesarghatta Road Term<strong>in</strong>al and<br />

end at Puttenahalli.<br />

<strong>Metro</strong> <strong>Stations</strong> by<br />

DKA<br />

Amongst the 43 metro stations<br />

be<strong>in</strong>g planned for the city, 11 have<br />

been designed by local architects -<br />

<strong>Dutta</strong> & Kannan Architects (DKA).<br />

This is <strong>in</strong>deed a major achievement<br />

<strong>in</strong> a country where such technical<br />

aviation design<strong>in</strong>g is left to<br />

<strong>in</strong>ternational architects and only a<br />

handful of architectural firms have<br />

been able to do justice to design<strong>in</strong>g<br />

metros. It is common knowledge<br />

that <strong>in</strong>itially all the metros stations<br />

<strong>in</strong> <strong>Bengaluru</strong> were given to lead<strong>in</strong>g<br />

architectural firms <strong>in</strong> the city to<br />

design; who came up with brilliant<br />

concepts but however exceeded the<br />

budget of 35 crores (for each<br />

station) that was permitted. This is<br />

where the Government had to<br />

reconsider the proposals and<br />

RITES, the general consultants for<br />

the project stepped <strong>in</strong>. It was<br />

decided that all the metro stations<br />

needed to be redesigned. Tenders<br />

were floated for the same and were<br />

won by L&T (an electrical and civil<br />

construction company), S N Bhobe<br />

(an electrical company who are also<br />

currently handl<strong>in</strong>g the Mumbai<br />

metro) and SNCL. Indraneel <strong>Dutta</strong><br />

who did his graduation from<br />

Chicago, follow<strong>in</strong>g which he worked<br />

<strong>in</strong> London for five years, is the<br />

pr<strong>in</strong>cipal architect of DKA. He says,<br />

“For an architectural firm to qualify<br />

for a project worth 1000 crores,<br />

MRTS proposals for this IT Capital<br />

have been <strong>in</strong> the pipel<strong>in</strong>e for the<br />

past 24 years. Dat<strong>in</strong>g back to 2003,<br />

the Delhi <strong>Metro</strong> Rail Corporation<br />

(DMRC) and RITES (Rail India<br />

Technical and Economic Services)<br />

prepared a detailed project report<br />

for the <strong>Bengaluru</strong> metro rail with<br />

the proposal of two double l<strong>in</strong>e<br />

corridors: East-West (EW) and<br />

North-South (NS) with their lengths<br />

respectively be<strong>in</strong>g 18.10 km and<br />

14.90 km. With a nod of approval<br />

from the Karnataka government <strong>in</strong><br />

Mysore Road Station<br />

NBM&CW FEBRUARY 2010 77


Project Report<br />

they need to collaborate with a<br />

structural eng<strong>in</strong>eer<strong>in</strong>g firm. Thus<br />

came <strong>in</strong> our collaboration with SNC<br />

Laval<strong>in</strong>, an eng<strong>in</strong>eer<strong>in</strong>g and<br />

construction company. SPAN, a<br />

structural eng<strong>in</strong>eer<strong>in</strong>g firm (which<br />

is currently do<strong>in</strong>g the Hyderabad<br />

and Chennai <strong>Metro</strong>) was bought<br />

over by SNC Laval<strong>in</strong> for the same.<br />

SNC Laval<strong>in</strong>’s responsibility for this<br />

project was structural design and<br />

project coord<strong>in</strong>ation while DKA was<br />

head<strong>in</strong>g the architectural, MEP and<br />

fire fight<strong>in</strong>g.” The project got<br />

launched <strong>in</strong> 2007; the east-west<br />

stations are look<strong>in</strong>g forward to<br />

completion <strong>in</strong> Dec 2010 and the<br />

north-south <strong>in</strong> Dec 2012.<br />

DKA has been <strong>in</strong>to commercial<br />

architecture for sometime and have<br />

been work<strong>in</strong>g on contemporary<br />

designs. They are work<strong>in</strong>g towards<br />

open<strong>in</strong>g offices <strong>in</strong> Kolkata and<br />

Chennai. The <strong>Metro</strong> project was the<br />

first of its k<strong>in</strong>d which they decided<br />

to work on, all thanks to senior<br />

partner Br<strong>in</strong>da Kannan who has<br />

worked on three underground metro<br />

projects and two airport term<strong>in</strong>als<br />

<strong>in</strong> London before she moved down<br />

to India to form DKA three years<br />

back. Without mak<strong>in</strong>g any other<br />

metro stations as their reference,<br />

the firm thus plunged <strong>in</strong>to the<br />

project. A lot of calculations are<br />

<strong>in</strong>volved <strong>in</strong> the design of the metro<br />

s<strong>in</strong>ce it needs to have a dynamic<br />

structural design. Talk<strong>in</strong>g about the<br />

complications <strong>in</strong> design<strong>in</strong>g a project<br />

as challeng<strong>in</strong>g as this, Indraneel<br />

<strong>in</strong>forms us, “Any build<strong>in</strong>g takes<br />

dead load and thus requires a four<br />

po<strong>in</strong>t check. In the case of metro<br />

stations, they take load pass<strong>in</strong>g<br />

78 NBM&CW FEBRUARY 2010


Project Report<br />

through them and thus require a<br />

12 po<strong>in</strong>t check. As architects we<br />

were never tra<strong>in</strong>ed to design metros<br />

which have lots of calculations and<br />

an important consideration <strong>in</strong> its<br />

cost factor”.<br />

The metro project was divided<br />

<strong>in</strong>to four reaches – Reach 1 (R1),<br />

Reach 2 (R2), Reach 3 (R3) and<br />

Reach 4 (R4). DKA are the project<br />

leaders of R2 and R3B. The stations<br />

designed by them on R2 are ‘on<br />

the road stations’ with carriageway<br />

on both the sides – compris<strong>in</strong>g of<br />

stations at Mysore Road (term<strong>in</strong>al<br />

station), Deepanjali, Vijayanagar,<br />

Hosahalli, Toll Gate, Magadi Road.<br />

The stations on R3 are ‘off the<br />

road’ and comprise of stations at<br />

Peeniya Village, Peeniya Industrial<br />

Area, Jalahalli, Dasarahalli,<br />

Hessargatta (term<strong>in</strong>al station).<br />

Appris<strong>in</strong>g of the difference <strong>in</strong> both<br />

Indraneel adds, “Off the road<br />

stations are possible <strong>in</strong> non-packed<br />

areas where there is lots of<br />

available land. It is easier to design<br />

compared to ‘on the road’ stations<br />

which are a structural challenge<br />

s<strong>in</strong>ce <strong>in</strong> them there is a median of<br />

a s<strong>in</strong>gle pier of columns to which<br />

the load gets transferred. On ‘off<br />

the road’ stations you have<br />

columns at both ends of the<br />

structure for the load to distribute.”<br />

The Term<strong>in</strong>al stations have been<br />

designed on a budget of 45 crores.<br />

Diagram for the<br />

Different Reaches<br />

Concept<br />

The metro stations have been<br />

designed bear<strong>in</strong>g <strong>in</strong> m<strong>in</strong>d the vision<br />

to provide passengers with a<br />

secure, comfortable and an<br />

attractive commut<strong>in</strong>g experience.<br />

“We got the prelim<strong>in</strong>ary design<br />

report by the BMRCL which<br />

conta<strong>in</strong>ed a detailed survey of the<br />

area on which the track has to<br />

come up, its alignment, soil test<br />

data, rider ship data and norms to<br />

be followed. These stations have<br />

been designed consider<strong>in</strong>g the<br />

public <strong>in</strong> general, operator and the<br />

passengers”, says Indraneel. Each<br />

of the metro stations has standard<br />

dimensions – 135 m long x 16 m /<br />

18 m wide. The width of the stations<br />

was f<strong>in</strong>alised consider<strong>in</strong>g the<br />

length of roads <strong>in</strong> <strong>Bengaluru</strong> which<br />

are between 18m - 24m. The length<br />

was calculated keep<strong>in</strong>g <strong>in</strong> m<strong>in</strong>d the<br />

length of the coaches (the width of<br />

one coach is 19m). Accord<strong>in</strong>g to<br />

designs and calculations three<br />

coaches would suffice for the<br />

amount of people travell<strong>in</strong>g up to<br />

2015; after which the length has<br />

been ma<strong>in</strong>ta<strong>in</strong>ed to adjust three<br />

additional coaches. Provisions have<br />

been made for peak hours till 2015<br />

for the addition of three more<br />

coaches if the exist<strong>in</strong>g three don’t<br />

suffice. It is also of note that these<br />

tra<strong>in</strong>s will be electric tra<strong>in</strong>s sans<br />

eng<strong>in</strong>e.<br />

The stations have been so<br />

conceptualized that any station can<br />

be evacuated <strong>in</strong> five m<strong>in</strong>utes flat.<br />

This is based on the calculations<br />

of the ridership data that the<br />

government has provided the<br />

architects. Based on this data which<br />

keeps <strong>in</strong> m<strong>in</strong>d the population and<br />

local transit, staircase widths and<br />

platform widths have been f<strong>in</strong>alized.<br />

NFPA (National Fire Protection<br />

Courtesy: <strong>Apurva</strong> <strong>Bose</strong> <strong>Dutta</strong>,<br />

Association) and <strong>in</strong>ternational<br />

norms have also been adhered to.<br />

Referr<strong>in</strong>g to the other metros <strong>in</strong><br />

India Indraneel ma<strong>in</strong>ta<strong>in</strong>s that he<br />

prefers the Kolkata one, s<strong>in</strong>ce the<br />

Delhi metro concentrates more on<br />

function without pay<strong>in</strong>g much<br />

importance to form. Abroad, his any<br />

day preference is the Jubilee L<strong>in</strong>e,<br />

London.<br />

Plann<strong>in</strong>g<br />

The metro l<strong>in</strong>es <strong>in</strong> case of the R3<br />

corridor have been kept parallel to<br />

the highway. In the R2 corridor the<br />

canopies of the metro stations fall<br />

on the road. The entrance system<br />

on the footpath leads to the<br />

escalator which leads to an unpaid<br />

and paid concourse level. Part of<br />

the unpaid level also serves as the<br />

operational area where the staffs<br />

sits and the rema<strong>in</strong><strong>in</strong>g has<br />

automatic devices for tickets. The<br />

paid levels <strong>in</strong> some of the stations<br />

have retail also. The next level above<br />

this level is the platform level where<br />

tra<strong>in</strong>s come. Circulation through<br />

these levels is via stairs or elevator.<br />

On each platform, there is one<br />

escalator with a space provision for<br />

a second one <strong>in</strong> the future.<br />

Indraneel also po<strong>in</strong>ts out at the<br />

80 NBM&CW FEBRUARY 2010


Project Report<br />

new strategy com<strong>in</strong>g up… of these<br />

metro stations open<strong>in</strong>g up <strong>in</strong>to<br />

malls, one such be<strong>in</strong>g designed by<br />

the Mantri developers.<br />

The architect came up with<br />

creative ideas–like hav<strong>in</strong>g photo<br />

voltaic on the roof of one of the<br />

metro stations, different roof forms<br />

to get <strong>in</strong> light, and harvest<strong>in</strong>g ra<strong>in</strong><br />

water; but these concepts weren’t<br />

okayed. With<strong>in</strong> very strict timel<strong>in</strong>es<br />

the product had to be delivered,<br />

and Indraneel didn’t want to repeat<br />

any of his designs. The result is<br />

def<strong>in</strong>itely some swanky look<strong>in</strong>g<br />

designs palpable of <strong>Bengaluru</strong>’s<br />

contemporary architecture and<br />

evocative of a mesmeris<strong>in</strong>g image<br />

of the IT Capital. Structural Glaz<strong>in</strong>g<br />

and Natural stone form a part of all<br />

the metro stations, with varied<br />

additional materials be<strong>in</strong>g used <strong>in</strong><br />

them <strong>in</strong>dividually – like sandstone<br />

<strong>in</strong> the Peeniya Village Station, ACP<br />

<strong>in</strong> Ulsoor Station and regular plaster<br />

<strong>in</strong> the Mysore Road station. All<br />

thanks to the design, there is no<br />

artificial light needed before 6 pm.<br />

Track ceil<strong>in</strong>g lights like ‘Hunter<br />

Douglas’ with mirror optic tube<br />

lights and CFL’s light up the<br />

stations after even<strong>in</strong>g. The<br />

architects have also envisioned the<br />

<strong>Metro</strong> as a means of ameliorat<strong>in</strong>g<br />

the quality of urban life. Besides<br />

the stations serv<strong>in</strong>g their basic<br />

NBM&CW FEBRUARY 2010 81


Project Report<br />

functions, there is a plaza for street<br />

performance at the Mysore road<br />

term<strong>in</strong>us, space for fairs, exhibitions<br />

and a commercial complex at the<br />

Magadi Road Station, site for<br />

advertis<strong>in</strong>g and pathways to be used<br />

for temporary exhibitions and<br />

shopp<strong>in</strong>g.<br />

Dwell<strong>in</strong>g on the structure of the<br />

stations Indraneel adds, “The<br />

structural design was very<br />

challeng<strong>in</strong>g on the s<strong>in</strong>gle pier<br />

design as the entire load of the<br />

cantilevers (9m on either side) and<br />

tracks station loads were on a<br />

s<strong>in</strong>gle pier. Also, the structure had<br />

to take <strong>in</strong>to account a lot of<br />

movement from the tra<strong>in</strong>s com<strong>in</strong>g<br />

<strong>in</strong> and out. The roof truss had to be<br />

designed to take <strong>in</strong>to account a lot<br />

of w<strong>in</strong>d load from an approach<strong>in</strong>g<br />

tra<strong>in</strong>.”<br />

Interior view of a station<br />

Conclusion<br />

<strong>Bengaluru</strong> has a population near<strong>in</strong>g<br />

seven million. The number of<br />

passengers expected to travel on<br />

the metro everyday is estimated at<br />

10.20 lakh <strong>in</strong> 2011 and 16.10 lakh<br />

<strong>in</strong> 2021. With so much of pressure<br />

on the transport system, everyone<br />

is wait<strong>in</strong>g for the metros which have<br />

been <strong>in</strong> plann<strong>in</strong>g for long. Once<br />

complete, they would be eas<strong>in</strong>g out<br />

the traffic congestion, stra<strong>in</strong>s on the<br />

road and reduction of pollution<br />

levels. It is envisaged that the travel<br />

time from end to end on the eastwest<br />

corridor will be 33 m<strong>in</strong>utes,<br />

and on the north-south corridor will<br />

be 28 m<strong>in</strong>utes. At the time DKA<br />

took on this project, there was no<br />

rule book <strong>in</strong> India detail<strong>in</strong>g fire<br />

norms for the design of metros.<br />

The Kolkata <strong>Metro</strong> was designed<br />

without a rule book and the Delhi<br />

<strong>Metro</strong> was designed on<br />

<strong>in</strong>ternational norms. But the<br />

relevance of metros is fast pac<strong>in</strong>g<br />

up <strong>in</strong> India, with today a set of<br />

rules be<strong>in</strong>g adopted for metro<br />

constructions. The <strong>Bengaluru</strong> metro<br />

story doesn’t end here. It is touted<br />

to be one of the biggest<br />

<strong>in</strong>frastructure projects for the city till<br />

date. Though at present 43 stations<br />

are be<strong>in</strong>g constructed which would<br />

get completed by 2015 but the DBR<br />

(Design Basis report) issued by<br />

BMRCL shows an approval for 162<br />

stations which means that <strong>in</strong> future<br />

there would be tributaries on the<br />

North-South and East West<br />

corridors.<br />

84 NBM&CW FEBRUARY 2010


Project Report<br />

For DKA, the approach to a project <strong>in</strong>volves a<br />

thorough knowledge about the programme, an <strong>in</strong>depth<br />

study of the images that the client has <strong>in</strong><br />

m<strong>in</strong>d, stress<strong>in</strong>g on the form and then fitt<strong>in</strong>g <strong>in</strong> the<br />

function <strong>in</strong>to it. Br<strong>in</strong>da and Indraneel have also<br />

formed HybridArch under DKA for out-of-the-box<br />

th<strong>in</strong>k<strong>in</strong>g projects, for experimentation with<br />

architecture and product designs, one of them<br />

be<strong>in</strong>g a luxury hotel <strong>in</strong> Slovakia that they are currently<br />

work<strong>in</strong>g on. On a conclud<strong>in</strong>g note, Indraneel<br />

affirmatively says, “We are amongst the five firms<br />

<strong>in</strong> India which specialise <strong>in</strong> metro design. We just<br />

need the ridership data to design a metro station.<br />

We are a young firm and have established<br />

ourselves as a totally architectural firm s<strong>in</strong>ce 2006.<br />

In three years, we have completed 3 million sqft of<br />

construction <strong>in</strong> commercial and residential projects.<br />

Our firm is consciously work<strong>in</strong>g towards aviation<br />

projects like airports, bus term<strong>in</strong>als etc. The<br />

<strong>Bengaluru</strong> metro project once completed will be<br />

the best <strong>in</strong> India.”<br />

The metro debate however does exist; mak<strong>in</strong>g<br />

everyone ponder if this would be the best solution<br />

for <strong>Bengaluru</strong> people and traffic. Options like BMTC<br />

buses might just fare better consider<strong>in</strong>g the<br />

coverage, accessibility, commute time, cost and<br />

economic viability. With bated breaths, we need to<br />

wait and watch!!!<br />

Bangalore-based architect <strong>Apurva</strong> <strong>Bose</strong> <strong>Dutta</strong> is<br />

an architectural journalist and she can be contacted<br />

at apurvabose@yahoo.com.<br />

NBM&CW FEBRUARY 2010 85

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