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Resilient urban systems:
a socio-technical study of community scale climate change adaptation initiatives
Table 2: Key technical enablers of resilience identified at Aurora*
* Information in this table is based on site visits and stakeholder interviews
Desired system
service or
function
Example of system feature that enables resilience
Category of enabler
Treatment of
black-water
Black-water can be pumped to mains sewer if required
Functional diversity
Evapotranspiration bed can overflow to sewer if required
Fail-safe mechanism
Grey-water
treatment
Real-time monitoring of grey water quality
Telemetry controlled grey water bypass switch
On-site manual switch (accessible by residents)
Feedback mechanism
(between function and
controller)
Grey water system can overflow to sewer
Functional diversity
Provision
of water for
household
(non-potable)
use
Multiple water sources (grey water and back-up mains water)
Fail-safe mechanism
Mains water back-up is pressured and does not rely on pumps Resource diversity
Hot water
supply
Multiple water sources (rainwater and back-up mains water)
Functional diversity
Mains water back-up is pressured and does not rely on pumps Resource diversity
Capacity for solar and gas water heating
Functional diversity
Provision
of water for
external (non-
potable) use
Multiple water sources (rainwater, grey water and mains water)
Functional diversity
Mains water back-up is pressured and does not rely on pumps Resource diversity
Stormwater
collection and
disposal
Multiple stormwater collection and infiltration points including
rain-gardens and sales
Functional diversity
Excess stormwater can drain to mains stormwater network
off-site
Functional diversity
Building heating
Hydronic heaters are driven by solar and gas
Fail-safe mechanism
Functional diversity