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Abbreviations and Acronyms

AASHTO
American Association of State Highway and Transportation Officials
ACS
Access control system
ANPR
Automated number plate recognition
ATAC
Agency for Bus and Railway Transport in Rome
ATM
Active traffic management
AVV
Transport Research Center in the Netherlands
CO
Carbon monoxide
DfT
Department for Transport
DRIP
Dynamic route information panel
DTM
Dynamic traffic management
EC
European Commission
EU
European Union
FHWA
Federal Highway Administration
GDP
Gross domestic product
GPS
Global Positioning System
HA
Highways Agency
HOT
High occupancy toll
HOV
High occupancy vehicle
ITS
Intelligent transportation systems
km
kilometer
km/h
kilometers per hour
KVB
Transport Company of Cologne
MIDAS
Motorway incident detection and automatic signaling
mi/h
miles per hour
MM
Mobility management
MTM
Motorway traffic management
NHI
National Highway Institute
NOx
Nitrogen oxides
NTI
National Transit Institute
NRW
North Rhine Westphalia
NVVP
National Transport Plan
OBU
Onboard unit
PM
Particulate matter
RDS-TMC
Radio Data System-Traffic Message Channel
RWS
Ministry of Transport, Public Works, and Water Management
SMS
Short message service
SRA
Swedish Road Administration
STA
Mobility Services for Rome
SVV2
Second Transport Structure Plan
SWINGH
Working Together in the Greater Hague Region
TDM
Transportation demand management
TfL
Transport for London
TMC
Traffic or transportation management center
USDOT
U.S. Department of Transportation
VKT
Vehicle kilometers traveled
VMS
Variable message sign
ZTL
Limited traffic zone

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Page last modified on April 1, 2019
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000