National ITS Architecture Glossary

A communications link that provides communications via a wireless device between a user and an infrastructure-based system. Both broadcast (one-way) and interactive (two-way) communications services are grouped into wide-area wireless communications in the National ITS Architecture. These links support a range of services in the National ITS Architecture including real-time traveler information and various forms of fleet communications. One of the types of architecture interconnects defined in the National ITS Architecture.

Windows Metafile. A graphics file format, originated by Microsoft Corporation. Images in WMF format can be resized without distortion and loss of detail. Available for download for selected diagrams (e.g., architecture flow diagrams). Many diagrams displayed on the National ITS Architecture CD-ROM and web site are actually in GIF format.