Abstract:
Potential effects of climate dynamics on the urban water cycle can involve the
aggravation of existing conditions as well as occurrence of new hazards or risk
factors. The risks associated with expected climate changes have to be dealt with
by the society in general and by the water utilities and related stakeholders in
particular. For this, an integrated approach for dealing with existing and
expected levels of risk is required. In PREPARED Task 2.1.1 a WCSP framework
was proposed for such an integrated approach. One of the steps for WCSP
application is risk identification.
This document gives guidance for hazard selection and identification and
corresponding events to be considered in the WCSP. Plausible hazards identified
in the urban water cycle are listed and briefly presented, including information
on the consequences of the exposure as well as the potential causes and
relevance of specific climate change indicators or effects. Fault trees were
constructed for each of the listed hazards to allow identification of potential
events, risk sources, risk factors and contributing causes. These were verified
together with stakeholder participants and suggestions incorporated.
Three applications (Risk Identification Data Base RIDB; Register of historical
hazards; Check list to filter risk sources) developed within PREPARED, intended
to facilitate risk identification, are presented.
