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Glossary

Terms that are in use on this site.

There are 111 entries in this glossary.
All A B C D E F G H I L M O P R S T V W Z
Term Definition
IESNA

Illuminating Engineering Society of North American (IESNA) is the technical authority on illumination; the society seeks to promote good lighting practice, advance knowledge, and disseminate information through various publications.

IMPERVIOUS SURFACE

A hard surface which slows or prevents water from infiltrating the soil and/or causes water to run off the surface more rapidly or in greater quantities than under natural conditions, before development occurred.

INCANDESCENT LAMP

An element is headed to the point of incandescence by the passage of an electric current to produce light.

INFRASTRUCTURE

The built facilities required to serve a community’s development and operational needs, e.g. roads, water, and sewer systems.

INTERSECTION

The area where two or more roadways join or cross including the roadway and roadside facilities.

ITE

Institute of Transportation Engineers - An international association of transportation professionals that supports transportation-related education, research, professional development, public awareness programs, and facilitates the exchange of professional information.

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