Title: Daniel Jonsson
1Daniel Jonsson
- Swedish Defence Research Agency
- Dep. of Energy and Environmental Security
- Royal Inst. of Techn., KTH
- Dep. of Built Environment Analysis
- Dep. of Environmental Strategies Reseach fms
2A Systems Perspective on Infrastructure(infrastr
ucture system infrasystem)
- System characteristics a technical perspective
- System development a socio-technical
perspective - What are infrasystems delivering? a service
perspective
3Systems?
- Lars Ingelstam 2002
- Machines
- Organisms
- Social systems
- Socio-technical systems
- NTS-systems (NatureTechnologySociety)
- Peter Checkland 1999
- Designed physical systems
- Designed abstract systems
- Human activity systems
- Natural systems
4Systems?
-
- Systems are defined by boundaries, demarcating a
certain system from the surroundings. The system
consists of components and relations, forming
some sort of entirety.
5Basic functions of infrasystems
- transport (of people and goods)
- water and sewage
- energy
- waste
- communication (of information)
6Overview
Infrasystems
Users / consumers
technicalcomponents
environment
economy
householdsorganisationsenterprisesbuildings
society
deliver
institutions
socialissues
services
legal prerequisites
politicaltrends
socio-technicalaspects
7Technical components
8Infrasystem architecture
9Nodes
- ...where certain functions, or processes, are
performed on the flow or where the flow is
produced or consumed
- Origin nodes power plants, water works,
television and radio stations, refuse chutes, WCs - Destination nodes wall sockets, water taps, TVs
and radios, landfills, sewage treatment plants - Process nodes power transformers, supporting
water pumps, TV satellites, waste assortment
facilities, telephone exchanges, train switches - Multi-purpose nodes train stations, on-line
computers, waste incineration plants
10Links
- ...what is generally referred to as
infrastructure
- Visible roads, pipes, cables, rails
- Invisible air corridors, radio links, navigation
channels - Exclusive water pipes, oil and gas pipelines,
subways, electric cables - Non-exclusive roads, rails
11Networks
- Point-shaped shipping, air traffic (only
accessible at ports and airports) - Line-shaped roads, power mains, telephones
- Surface-shaped radio, TV, mobile phone networks
- Grid-based electricity, water, district heating,
railways (visible links) - Non-grid-based shipping, air transport, radio,
TV (invisible links) - Specific electricity, water, telephone
(exclusive grid-based) - Existing postal services, food distribution,
non-grid-based energy systems - Natural waterways, air, on the air (natural
broadcasting media) - (Arne Kaijser 1994)
12Flows
- Some perspectives on infrasystem flow
- Basic function energy, water, waste, information
- Constituent parts electrons, photons, water
molecules, bikes, cars, lorries, food scraps,
cans, mail items, people, goods - Continuous flows water, electricity, district
heating, gas - Discrete flows mail delivery, public transport,
waste removal (when the demand is too
small for continuous operation)
13Infrasystems are socio-technical systems
- Infrasystems should not only be treated as sets
of technical components they also include the
people and organisations that plan, build, run
and use the systems, and the economic and legal
conditions for the activities. (Arne Kaijser
1991 1994) - From a socio-technical perspective,
infrastructure should be understood as a seamless
web of technical, economic, institutional, social
and political aspects. (Thomas P. Hughes
1983, Guy and Marvin 2001)
14Socio-technical revolutions an example
- First public railway Stockton Darlington,
1825 - Organised as traditional canal traffic
- bring your own vehicle
- pay the fee
- have a nice trip!
-
- result gt congestion, low profits, general
chaos
15...example (cont.)
- Second public railway Liverpool Manchester,
1830 - A brand new organisational set-up, and ownership
relations - check the time-tables
- pay for the ticket / goods fee
- have a nice trip!
-
- result gt smooth operation, economies of scale
16Evolution of infrasystems
? ?
Invention Technology System growth
Momentum Decrease in momentum transfer
Establishing phase Expansion phase
Stagnation phase
17Establishing phase
- The phase of inventors, entrepreneurs, risk
capitalists, and large important, potential
consumers or interested parties - Actor networks
-
18Expansion phase
- ... is characterised by common confidence in the
system and its future growth - system culture a common view upon what is
rational and desirable - momentum the systematic interaction of people,
ideas, technology and institutions, leads to the
development of a socio-technical force with
movement and direction - inertia it is hard to decide on something that
is not in line with the current system culture - load factors
19Load factors (expansion phase)
- load factor the ratio of average output to the
maximum output during a certain period -
- High load factors, but also smooth load curves,
are desirable - The load factor is, probably, the major
explanation for the growth of capital-intensive
technological systems in capitalistic,
interest-calculating societies (Hughes 1989)
20Stagnation phase
- momentum decreases
- market saturates
- competition from new systems
- environmental problems
- gt steady-state, or decline
21Overview
Infrasystems
Users / consumers
technicalcomponents
environment
economy
householdsorganisationsenterprisesbuildings
society
deliver
institutions
socialissues
services
legal prerequisites
politicaltrends
socio-technicalaspects
22The Nature of Infrasystem Services
- Infrasystems deliver service, or have service in
readiness, in order to produce utilities or
conveniences, fulfilling the needs of
individuals, households, enterprises and
organisations.
23Some perspectives on service, utilities,
conveniences, and needs
- Practical services, to sustain a comfortable
living, e.g. personal hygiene and indoor climate - Symbolical services, social or demonstrative,
supporting a certain life-style, e.g. large
expensive vehicles - Aesthetical services, conveying feelings of
well-being to individuals, e.g. design details of
buildings, interiors and equipments or taking a
hot bath not primarily to get clean but for the
pleasure - (Örjan Svane 1999)
24A metabolic perspective
- To nourish, which embraces all processes and
goods to produce and consume food. - To clean, including all processes to maintain
human health, e.g. personal hygiene and sewage
treatment. - To reside and work, which comprises all processes
set up to erect and maintain the built
environment, also including, for example,
recreation facilities and furniture. - To transport and communicate, which embraces all
processes involving transportation of people and
material and exchange of information. - (Baccini and Brunner 1991)
25Needs of Maslow (1954)
- physiological (e.g. food, water),
- safety (e.g. shelter, support oneself),
- belongingness (e.g. friends, family),
- self-esteem (sense of self-identity and
appreciation from other), and - self-actualization (sense of self-purpose and to
be able to transform interest and wishes into
practice).
26Needs(household perspective)
service
- Personal hygiene health
- Food drink
- Indoor climate
- Indoor hygiene
- Making a living
- Personal improvement recreation
- Public services
utility, or convenience
need
27(No Transcript)
28Whats the point of it?
- Approaching services and utilities, rather than
technology and systems, might help us finding
other ways perhaps more environmental friendly
to fulfil our needs. - Key words substitutions, synergies
29- daniel.jonsson_at_foi.se
- Jonsson (2000), Sustainable Infrasystem
Synergies A Conceptual Framework, Journal of
Urban Technology, Vol. 7, No. 3, pp. 81-104 - Jonsson (2005), The Nature of Infrasystem
Services, Journal of Infrastructure Systems, Vol.
11, Issue 1, pp. 2-8 -