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Contains terms and definitions used in the reference book, the project and the structure of the Ontology.

Browse the glossary using this index

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Sanitary sewer

Sewer that carries liquid and water-borne wastes from residences, commercial buildings, industrial plants, and institutions, together with relatively small quantities of ground, storm, and surface waters that are not admitted intentionally.


A carefully constructed snapshot of the future. It can be also defined as a storyline that can be told in words and numbers which offer a description of how events can evolve over time.

Sector (Urban Sector)

"That which is comprised of the following core sectors: (i) urban governance (i.e., community participation and partnership with the private sector); (ii) urban finance; and (iii) urban infrastructure and services (i.e., institutional strengthening and capacity building, water supply, sanitation and solid waste, urban transport, urban housing, and urban land management); (iv) security."


The process of deposition and consolidation of suspended material carried by water, waste water, or other liquids, by gravity.


Ability of actors and organisations to adapt their structure and strategy to the new challenges.

Selftranscendent values of benevolence

A state of being honest, ethical, helpful and loyal.


Measure of the response of the model output to variations in an input variable or parameter.

Separate system

Sewer system, normally of two pipelines, one carrying wastewater and the other surface water.


Wastewater and/or surface water conveyed by a drain or sewer.


Pipeline or other construction, usually underground, designed to carry wastewater and/or surface water from more than one source.

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