Road Network Operations
& Intelligent Transport Systems
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Acronyms

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5

5W+H

Who, Why, What, When, Where, How

A

AASHTO
American Association of State Highway and Transportation Officials
ACC
Adaptive Cruise Control
ADAS
Advanced Driver Assistance System
ADMS
Archived Data Management System
AI
Artificial Intelligence
AID
Automatic Incident Detection
ANPR
Automatic Number Plate Recognition
APTS
Advanced Public Transport Systems
ATIS
Advanced Traveller Information Systems
ATMS
Advanced Traffic Management Systems

C

C2C
Centre to Centre
C2F
Centre-to-Field
CALM
Communications Access for Land Mobiles
CCTV
Closed Circuit Television
CEN
Comité Européen de Normalisation
CMS
Communications Management System
CORBA
Common Object Request Broker Architecture

D

DATEX
Data Exchange
DBOM
Design Build Operate and Maintain
DR
Disaster Recovery (IT systems) or Detection Rate (AID)
DSRC
Dedicated Short Range Communication
DSS
Decision Support System

E

EC
European Commission
EGNOS
European Geostationary Navigation Overlay Service
ERT
Emergency Roadside Telephone
ESoP
European Statement of Principles

F

FA
False Alarm
FAR
False Alarm Rate
FESTA
Field Operational Tests Networking and Methodology Promotion project
FHWA
Federal Highway Administration

G

GIS
Graphical Information System
GNSS
Global navigation satellite systems
GPS
Global Positioning System
GUI
Graphical User Interface

H

HAR
Highway Advisory Radio
HMI
Human Machine Interface or Human Machine Interaction

I

IBEC
International Benefit, Evaluation and Cost Working Group
ICT
Information and Communication Technologies
IDA
Incident Detection Algorithm
IHRA-ITS
International Harmonized Research Activities - ITS Working group
ILD
Inductive Loop Detector
IM
Incident Management
IP
Internet Protocol
ISO
International Standardisation Organisation
IT
Information Technology
ITA
International Tunnelling and Underground Space Association
ITS
Intelligent Transport Systems

J

JAMA
Japanese Automobile Manufacturers Association

K

KBEST
Knowledge-based Expert System

L

LBS
Location-based Services

M

MANETS
Mobile Adhoc Networks
MEMS
Micro-Electromechanical Systems
MMS
Maintenance Management System
MNO
Mobile Network Operator
MPEG
Motion Picture Expert Group

N

NHTSA
National Highway Transportation Safety Administration (in USA)
NTCIP
National Transportation Communications for Intelligent Transportation System Protocol

O

OCR
Optical Character Recognition
OMU
Outstation Monitoring Unit

P

PMR
Private Mobile Radio
PMS
Performance Monitoring System
PTW
Powered Two Wheeler
PTZ
Pan Tilt and Zoom

R

RDS-TMC
Radio Data System-Traffic Message Channel
RF
Radio Frequency
RFID
Radio Frequency Identification
RNO
Road Network Operations
RNO
Road Network Operator
RSU
Recommendations for Safe Use (see ESoP)

S

SANRAL
South African National Roads Agency
SMPS
Speed Map Panel System

T

TIM
Traffic & Incident Management
TMC
Traffic Management Centre
TS
Technical Specification (a type of standard)
TTD
Time To Detect

U

UCD
User-Centred Design
UK DfT
United Kingdom Department for Transport
UNECE
United Nations Economic Commission for Europe
UPS
Uninterruptable Power Supply
US DOT
United States Department of Transportation

V

V2I
Vehicle-to-Infrastructure
V2V
Vehicle-to-Vehicle
V2X
Vehicle-to-Device
VAN
Vehicle Area Network
VIP
Video Image Processing
VMS
Variable Message Sign
VoIP
Voice Over IP
VRM
Vehicle Registration Mark

W

WIM
Weigh-In Motion
WMO
World Meteorological Organisation
WP29
Working Party 29 (of UNECE)
WSDO
Washington State Department of Transportation