Skip to main content

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

Browse the glossary using this index

Special | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | ALL


Geographic information system (GIS)

A mapping system to analyse and display geographically referenced information.

Green Cities Initiative

An initiative undertaken by Asian Development Bank (ADB), which represents a holistic way of thinking, and which is concerned with how to design the whole city in a way that is more sustainable, efficient, adaptive, and resilient.

Green Infrastructure (GI)

A network providing the “ingredients” for solving urban and climatic challenges by building with nature. It is also referred to as Blue-green infrastructure.


Water present in the sub-surface strata.


Structure to permit the entry of surface runoff into the sewer system. It is often fitted with a grating and a grit trap.