Metro Stations in Bengaluru.pdf - Apurva Bose Dutta
Metro Stations in Bengaluru.pdf - Apurva Bose Dutta
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 />
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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