5. Reuse &
Receprocity
Hangers
Twelve 12 stylish sculptures in the form of hangers, were installed in public spaces (squares,
parks, pedestrian streets), art creations of graduate artists and architects.
On the hangers various kinds of well-maintained utility can be placed, e.g. children's toys,
bags, clothing, footwear, decorations, etc., and can be shared between citizens:, those who
no longer need them and those who need them for new use.
This action contributes to the upgrading of the city, enhancing waste prevention, and
strengthening the concept of re-use and cyrcular economy.
It is also inspires citizens with the spirit of solidarity, collective action, reciprocity in
addressing social problems
s
Municipality of
Vrilissia, Attica
6. • We live in the first
urban & overcrowded
century
• By 2050: 2/3 of the
world’s population will
live in cities
• Megacities are
growing both in
number and in
population
The triumph of cities
7. Key-issues on megacities
• Symbiosis of extremes in the same shell –
extreme inequality
• Bottom-up growth & arrival cities
• Flows of trade, trends, ideas, practices, cultures
• They are Global Risk Areas due to their:
– High population density - pandemics
– High integration and interconnection with the
rest of the world
– High vulnerability to natural disasters
8. The SWM DNA in megacities
Global input - local output
Complex interactions between
stakeholder
Local patterns – heterogeneity as
the rule
The behavioral component of SWM
becomes crucial
9. SWM as Complex Adaptive Systems
A system that as a
whole exhibits
properties not obvious
from the properties of
the interconnected
parts
• Adaptiveness
• Interconnections
• Emerging properties
• Behavioral dynamics
• Local dynamics
• Bottom – up evolution
• Continuous feedback