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Design in deltas with a changing context
Working on the Bangladesh DeltaplanSUMMER SCHOOL TUDELFTPlanning and Design with Water for Sustainability
Anne Loes Nillesen - July 17th 2017anneloes@d.efac.to
The Dutch Delta
Relations scales Dutch Delta (and relation to urbanisation)
Interventions on diff erent scales
water binnenlaten
regionaal niveau niveau kade / havens niveau bebouwing
gebied ophogen
dijken plaatsen / versterken
keringen plaasten / versterken
elevate ground
levees
barrier
letting water in
regional local build area
Flood risk protection on the local scale
Interventions on diff erent scales
water binnenlaten
regionaal niveau niveau kade / havens niveau bebouwing
gebied ophogen
dijken plaatsen / versterken
keringen plaasten / versterken
elevate ground
levees
barrier
letting water in
regional local build area
Interventions on diff erent scales
water binnenlaten
regionaal niveau niveau kade / havens niveau bebouwing
gebied ophogen
dijken plaatsen / versterken
keringen plaasten / versterken
elevate ground
levees
barrier
letting water in
regional local build area
Flood risk protection on the building scale
Interventions on diff erent scales
water binnenlaten
regionaal niveau niveau kade / havens niveau bebouwing
gebied ophogen
dijken plaatsen / versterken
keringen plaasten / versterken
elevate ground
levees
barrier
letting water in
regional local build area
Interventions on diff erent scales
water binnenlaten
regionaal niveau niveau kade / havens niveau bebouwing
gebied ophogen
dijken plaatsen / versterken
keringen plaasten / versterken
elevate ground
levees
barrier
letting water in
regional local build area
Interventions on diff erent scales
water binnenlaten
regionaal niveau niveau kade / havens niveau bebouwing
gebied ophogen
dijken plaatsen / versterken
keringen plaasten / versterken
elevate ground
levees
barrier
letting water in
regional local build area
Netherlands:Flood risk protection infrastructure already in place
Netherlands experience, can you do this in Bangladesh?
Bangladesh Deltaplan 2100
Urban DrainagePTI
Urban DrainagePTI
What is urbanism?New appreciation Netherlands development of urban design
Rapid urban growth: what is a good reference for density?
DHAKA
CHITTAGONG
Barisal
Begumganj
Noakhali
Feni
Gazipur
SreepurTangail
Kaliakair
Siragonj
Kushtia
Pabna
Mymensingh
Sylhet
Kishoreganj
Cox’s Bazar
Bhairab
Brahmanbaria
Chandpur
Kandar Rasul
Narsingdhi
Narayanganj
Savar
Tongi
Shiddhirganj
Tarabo
Faridpur
Jessore
JenaidahComilla Sadar
Comilla Dakshin
BograJamalpur
Chapai Nawabganj
Rajshahi
Naogaon
SaidpurRangpur
Dinajpur
Chuadanga
Satkhira
Khulna
19741981199120012011
500.000400.000300.000200.000100.000
The populance of Dhaka and Chittagongis relatively large compared to other cities.
Dhaka 2011: 8.906.309 inhChittagong 2011: 2.592.439 inh
Data source; Population and housing census 2011, BBS 2014. Data used reflects the populance of the recently redefined city areas rather than the former SMA’s.
LARGE CITIES IN BANGLADESHUrban centres with a populance of over 100.000
Year Populance Metropolises
Room for the river?2003 2004
2003 2004 2014
How to apply planning if implementation is difficult to monitor?
Building with nature
Stuart Matthews
Peter Caton
Strategy choices:Preference dike systemdifferent conditions
Complex, integrated and politicalTwo strategies water follows & water leads
Important notions
Values change over time with growing prosperity
removing waterbodiesfrom urban
area
Opening up old canals, water adds value for
properties
Softening river edges
Opening up bariers?
Canalising rivers
barries in estuaries
changing values
prosperity
taking into account: Changing perspectives in time
Different tools
Taking into account: Financial structures
Water leads - drainage
Water leads - drainage
Water leads - drainage
Water leads - drainageuse scenarios
Water leads - drainage
Water leads - drainage
Combine with green structures
Smart incentives
Preserve identity
Design in deltas with a changing context
Working on the Bangladesh DeltaplanSUMMER SCHOOL TUDELFTPlanning and Design with Water for Sustainability
Anne Loes Nillesen - July 17th 2017anneloes@d.efac.to
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