encyclopedia

INTEGRATED SERVICES DIGITAL NETWORK

1. A public end to end digital telecommunications network with signaling, switching and transport capabilities supporting a wide range of service accessed by standardized interfaces with integrated customer control. 2. A set of standards for high-speed transmission of voice, data…

INTEGRATED TEST FACILITIES

Test data processed in production systems. The data usually represents a set of fictitious entities such as departments, customers, and products. Output reports are verified to confirm the correctness of the processing.

INTELLIGENT TERMINAL

A terminal with built in processing capability. It has no disk or tape storage, but has memory. It interacts with the user by editing and validating data as it is entered prior to final processing.

INTELLIGENT TRANSPORTATION SYSTEMS

The Aplication of advanced technologies to improve the efficiency and safety of transportation systems.

INTELLIGENT VEHICLE HIGHWAY SYSTEMS

Automated systems of highway transportation designed to improve traffic monitoring and management. IVHS includes: Advanced Public Transportation Systems (APTS), Automatic Vehicle Location System (AVLS) and “smart vehicles” which assist drivers with planning, perception, analysis and decision-making.

INTERCHANGE

1. (Bus Operations) The system of interconnecting ramps between two or more intersecting travel ways (highways, transit guideways, etc.) that are grade separated. 2. (Metrolink) The exchange of rail cars between one railroad or transit agency to another so that…

INTERCITY BUS (OVER-THE-ROAD COACH)

A large bus with luggage space, used primarily for transportation between cities. It usually has reclining seats and restroom facilities. (TRB)

INTERCOMMUNICATION SYSTEM

A communication system within a building, ship, airplane, local area, etc., with a loudspeaker or receiver for listening and a microphone for speaking at each of two or more points.