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Variable-message sign

A variable- (also changeable-, electronic-, or dynamic-) message sign or message board, often abbreviated VMS, VMB, CMS, or DMS, and in the UK known as a matrix sign, is an electronic traffic sign often used on roadways to give travelers information about special events. Such signs warn of traffic congestion, accidents, incidents such as terrorist…

History & Culture

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Overview

History

Technologies and types

Usage

Safety messages for drivers

Movable versions

In popular culture

Gallery

Advanced semantic analysis

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Map overview Semantic statistics

Variable-message sign

Nodes97
Edges96
Triples77
Avg. degree1.98
Density0.020619
Components1

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Variable-message sign

Top relations

related to Gallery · 55
Variable-message sign → Adelaide, Area Closed, Australia, Avoid London, Bangalore, Canada, Changzhi Interchange, China, Colombo, Colorado, COVID-19, Daktronics, Dynamic Route Guidance System, Evergreen, Fully, G18 Expressway, German Autobahn, Germany, Hidaka Expressway, Highway
related to Movable versions · 15
Variable-message sign → An, Caltrans, Intelligent Transportation System Protocol, Most, National Transportation Communications, NTCIP, PCMS, Portable Changeable Message Signs, The, They, Trailer-mounted, Trailer-mounted VMS, Truck-mounted VMSes, VMS, VMSes
related to In popular culture · 1
Variable-message sign → Story

Important terminology Word statistics

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Important terminology

signs message sign traffic vms variable speed used messages matrix drivers lane ahead information led highway display also three road

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
terrorist attacksinstance ofincidents0.80text
Amber/Silver/Blue Alertsinstance ofincidents0.80text
roadwork zonesinstance ofincidents0.80text
or speed limits on a specific highway segmentinstance ofincidents0.80text
major cities or interchanges along the route of a highway.Typical messages provide the following informationinstance ofsemi-static displays indicating predicted travel times to important traffic destinations0.80text
accidents in areas where permanent VMSes are not available or near enough as a preventive measure for reducing secondary accidentsinstance ofare sometimes dispatched by highway agencies such as Caltrans to warn traffic of incidents0.80text
Variable-message signrelated to GalleryLED0.60section
Variable-message signrelated to GalleryKatunayake Expressway0.60section
Variable-message signrelated to GalleryColombo0.60section
Variable-message signrelated to GallerySri LankaA0.60section
Variable-message signrelated to GalleryAvoid London0.60section
Variable-message signrelated to GalleryArea Closed0.60section

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    Min side: 3
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