DRIVERS AND CHALLENGES OF URBAN CONCENTRATIONProf Cedo Maksimovic, Imperial College London & BGG Ltd

EIC AUTUMN 2019 CONFERENCE – HELSINKI, 10–11 OCTOBER

DRIVERS AND CHALLENGES OF URBAN CONCENTRATION

THE FUTURE IS NOT WHAT IT USED TO BE !

Blue Green Solutions

City growth challenges

and planning strategies

mismatch

Suboptimal efficiency of

current planning

methodologies

Why BGS

New opportunities for

improving sustainability,

climate resilience and

cost efficiency,

BG Systems

Approach

Blue Green Solutions

City growth challenges

and planning strategies

mismatch

Suboptimal efficiency of

current planning

methodologies

Why BGS

New opportunities for

improving sustainability,

climate resilience and

cost efficiency,

BG Systems

Approach

There is a significant role for contractors to play

both in planning and implementation

Urban challenges and BG/NB Solutions

THE RESULT:

PLANNING MINDSET CHANGE

Mitigation solutions

2

3o

C

Some issues tackled by

Blue Greening

Flooding Droughts Air pollution

Heat island

Noise levels dB(A)

< 40.0

40.0 <= < 42.0

42.0 <= < 44.0

44.0 <= < 46.046.0 <= < 48.0

48.0 <= < 50.0

50.0 <= < 52.0

52.0 <= < 54.054.0 <= < 56.0

56.0 <= < 58.0

58.0 <= < 60.0

60.0 <=

CUW-UK

Signs and symbolsRoad axis

Emission line

Surf ace

Main building

Area

Area source

Point source

Length Scale 1:1000000 50 100 200 300 400

m

Porto Montenegroday noise lev el af ter reconstruction 13

Noise

CrimeUrban agriculture

Water pollution

+ Energy efficiency of buildings

Healthy cities

Modified role of transportation with BGS planning

Challenges

• Reduced air and noise pollution from all sources

and mitigation (emission and BGS)

• Multifunctional electrical vehicles

• Dynamic/flexible management under impacts of CC

• Multifunctional use of underground structures

• Reduced need for transportation (clusterisation)

Case studies: Glasgow & Taoyuan

www.bgd.org.uk

Blue Green Solutions call for rethinking existing ways of planning, designing, constructing, operating and

maintaining urban water systems (blue assets), urban vegetated areas (green assets), buildings, energy,

air quality and city behaviour under climate extremes, not as separate systems but in combination.

The innovative advantage of this method is the fact that interactions between

components of urban categories including Ecosystem Services,are quantified,

enabling the design team to optimize complete project, based on parametric

results (analysis); with direct implication on cost and quality.

MODEL TO QUANTIFY THE INTERACTION

CLIMATE

VARIABILITY

BUILDING

SOLUTION

S

POLLUTIO

N

ENERGY

URBAN

SOLUTION

S

WATER

CYCLE GREENERY

ENVIRONMENT

QUALITY

+

SOCIAL

IMPACT

Additional interactions (New opportunities for contractors :

Health, Transport, Eco-system services, Waste Water Treatment

How smart is SMART KALASATAMA – NBS/BGS opportunities for value to be added

World Bank ParisMAY 2009

EnPlus

Historic development of urban storm drainage systems – towards

integrated Blue Green Solutions

BGS – Blue Green Solutions encompass Storm Water and WW

Systems’ interactions - compatible with the Chinese Sponge City

program

Opportunities for retrofitting - Public Realm

10/8/2019

Blue Green Infrastructure

Th

is m

ate

ria

l is

NO

T for

public

atio

n.

All

rig

hts

reserv

ed.

Source: Farr, 2007

Cross-disciplinarity and collaboration

7. Re-naturalisation (Day-lighting) of Urban Streams32

1. Matrix of

Interactions2. Climate Resilience

matrix

3. Capital cost savings

matrix

6. Business activation

matrix

4. Blend in

matrix

5. Gender

matrix

7. Long term

functionality matrix

0. Goal Driven Planning MatrixB

GS

PLA

NN

ING

ME

TH

OD

OLO

GY

The product :Detailed design brief with optimized capital & operational costs and

improved human environment

Innovative planning tools

GDPM

OPPORTUNITES FOR PRO-ACTIVE CONTRACTORS

ENGAGE IN THE EARLY PHASE OF PLANNING (PRE-PLANNING)

Stages (Phases) in BGS Business development

Two examples of unconventional BGS opportunities for

contractors

a. Rehabilitation of urban lakes and streams

b. Vacating urban land by innovative WWTP

www.bgd.org.uk

The Bottomline:

LESS EXPENSIVE & MORE EFFICIENT

AS MBBR SBR MBR BGS

Competitive in All Fields

Capex*

Opex

Energy

Footprint

Sludge

www.bgd.org.uk

Opportunities for CONTRACTORS

Vacating lands for construction in cities

The Kitakyushi Treatment Center Retrofit

AN EXAMPLE IN FINDING DEVELOPMENT OPPORTUNITIES IN UNUSUAL PLACES

The new WWTP in the middle of business district

CHANGE IN MINDSET - ATTITUDE AND PERCEPTION

Opportunities for collaboration with BGS partners

Contact details