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Acronyms, Abbreviations and Definitions of ITS Systems
The Intelligent Transport Society South Africa Acronyms, Abbreviations and Definitions of ITS Systems is brought to you in the interest of shared learning and knowledge transfer by the Intelligent Transport Society South Africa.
ForewordDeciphering the “Alphabet Soup” of AcronymsSouth African-born inventor Elon Musk said “The key test for an acronym is to ask whether it helps or hurts communication.” This ITSSA Acronyms and Definitions of ITS Systems document is brought to you with the aim to help our communication with one another and — to help improve clarity and consistency of meaning and to decipher the alphabet of acronyms in our documentation.
Given the increasing specialisation in the subfields of Intelligent Transport System planning and operations, and the linkages with related fields, the list of acronyms has grown exponentially in the previous few years. This practical reference document is part of the on-going services to our members.
In addition to the technical acronyms we often use, let us also use the non-technical acronym “TODAY” (coined by Kamil Ali) to inspire us, based on its meaning of “Turn On Dreams Abandoned Yesterday”, to focus our collective efforts on “Making Transport Work Smarter for All.”
We have attempted to capture the bulk of the most frequently used acronyms and definitions as a service firstly to our members, and secondly to the broader ITS Industry. The document is presented as a printable PDF version to share with colleagues in the office.
A great word of thanks to the several ITSSA Board and other Members who have contributed to this document.
This edition numbered Version 0 as a base-line document. You are cordially invited to submit additions and/or corrections in order to update the document. Please send your suggestions to [email protected].
PAUL VORSTERCEO: ITS SOUTH AFRICA
Email: [email protected]: www.itssa.org
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Acronyms, Abbreviations and Definitions of ITS Systems
The Intelligent Transport Society South Africa Acronyms, Abbreviations and Definitions of ITS Systems is brought to you in the interest of shared learning and knowledge transfer by the Intelligent Transport Society South Africa.
AADT Annual Average Daily Traffic
ACC Adaptive Cruise Control
ACE Automated Commercial Environment
ACSA Airports Company South Africa
ADMS Archived Data Management Subsystem
ADSL Asymmetric Digital Subscriber Line
ADT Average Daily Traffic
ADAS Advanced Driver Assistance System
ADRTS Advanced Rural Transportation Systems (ARTS)
ARTS include systems that apply ITS technology to the special needs of rural areas, since these are characterised by a number of attributes, which are different from urban areas, e.g., blind corners, fewer passing lanes, longer distance travel or less supporting infrastructure
ADUS Archived Data User Service
AFC Automated Fare Collection An assortment of components that automate the ticketing process of a public transportation network.
AFC AFC Data Structure
A logical structure of data elements defined by the National Department of Transport (DOT) as an enabler for compliance with the National AFC Regulations.
AFD Architecture Flow Diagram
AHS Automated Highway System
AI Artificial Intelligence
AID Automatic Incident Detection
AMS Arterial Management System
ANPR Automatic Number Plate Recognition
APC Automated Passenger Counting
APIS Automated Parking Information Systems
APE Aggregate Provider Edge
APTMS Advanced Public Transport Management Systems
A system that promotes information sharing, and supports the implementation of ITS within the public transportation environment.
APTS Advanced Public Transportation System
ATC Automatic Train Control
ATC Automatic Train Control, Advanced Transportation Controller
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Acronyms, Abbreviations and Definitions of ITS Systems
The Intelligent Transport Society South Africa Acronyms, Abbreviations and Definitions of ITS Systems is brought to you in the interest of shared learning and knowledge transfer by the Intelligent Transport Society South Africa.
ATIS Advanced Traveller Information Systems A system that obtains, analyses, and disperses travel related information to assist travellers.
ATM Asynchronous Transfer Mode
ATMS Advance Traffic Management System
ATPC Automatic Transit Passenger Counters Similar to (APC) Automated Passenger Counting
ATRaMS Automated Traffic Monitoring System
ATS Automatic Train Stop
AVCS Advanced Vehicle Control Systems Technology systems aiding the driver by providing information, warnings and driving assistance
AVI Automated Vehicle Identification
A system which transmits signals from an on-board tag or transponder to roadside receivers for uses such as electronic toll collection (ETC) and stolen vehicle recovery
AVL Automated Vehicle Location
Vehicle position may be determined either by the vehicle (e.g., through GPS) and relayed to the infrastructure or may be determined directly by the communications infrastructure. The location data can be utilised to determine real time schedule adherence and update the transit system's schedule in real-time.
AVM Automated Vehicle Management or Automated Vending Machine
AVO Automated Vehicle Operation
BIFA Border Information Flow Architecture
BMT Bus, Minibus Taxi
BRT Bus Rapid Transit
A high passenger capacity road-based public transport system that uses buses in an exclusive right-of-way configuration (dedicated lanes), with formal high-capacity stations for boarding and alighting.
CBD Central Business District
C2C Centre to Centre
C2F Centre to Field
CALM Communication Access for Land Mobiles
CCS Corporate Support Services
CCTV Closed-Circuit Television Video cameras transmitting a signal to a specific place, on a limited set of monitors.
CDMA Code Division Multiple Access
CEN Comité Européen de Normalisation European Standardisation Committee
CIT Cash in Transit
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Acronyms, Abbreviations and Definitions of ITS Systems
The Intelligent Transport Society South Africa Acronyms, Abbreviations and Definitions of ITS Systems is brought to you in the interest of shared learning and knowledge transfer by the Intelligent Transport Society South Africa.
CMA Cape Town Metropolitan Area
CMS Communication Management System
CoCT City of Cape Town
CoE IRPTN IRPTN developed specifically for City of Ekurhuleni
ConOps Concept of Operations document A document describing the characteristics and principles of the proposed IRPTN system.
CORBA Common Object Request Broker Architecture
CTICC Cape Town International Convention Centre
CVM Card Vending Machines
An electronic machine that is used to disperse a product (smart cards – Contactless EMV & Contactless Single-trip ticket) to a consumer after the appropriate amount of money has been paid, also referred to as a Ticket Vending Machine (TVM).
CVO Commercial Vehicle Operations
CVO address the application of ITS technologies to the special needs of commercial vehicles including automated vehicle identification, location, weigh in-motion, clearance sensing, and record keeping. A major issue in this field is to improve fleet management operations
CVS Commercial Vehicle Subsystem
DATEX Data Exchange
DBOM Design, Build, Operate and Maintain
DMS Dynamic Message Sign
DR Disaster Recovery or Detection Rate
DRC Disaster Recovery Centre
DSRC Dedicated Short Range Communication Standard enabling data transmission at a frequency of 5.8 GHz
DSS Decision Support System
EC European Commission
EFC Electronic Fare Collection
EFT Electronic Funds Transfer
EM eThekwini Municipality
EMM Ekurhuleni Metropolitan Municipality
EMS Emergency Management Services or Emergency Medical Services or Electronic Message Sign
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Acronyms, Abbreviations and Definitions of ITS Systems
The Intelligent Transport Society South Africa Acronyms, Abbreviations and Definitions of ITS Systems is brought to you in the interest of shared learning and knowledge transfer by the Intelligent Transport Society South Africa.
EMV Europay, MasterCard and Visa
EMV is a global standard for integrated circuit based payment cards and acceptance devices including Card Vending Machines (CVM), Point of Sale (POS) terminals and Automated Teller Machines (ATM), for authenticating credit and debit card payments.
EPP Electronic Parking Payment
EPS Electronic Payment System
ETA eThekwini Transport Authority
ETC Electronic Toll Collection
ETSI European Telecommunications Standards Institute
EV Electric Vehicle
EVI Electronic Vehicle Identification
EVP Emergency Vehicle Pre-emption
FAR False Alarm Rate
FCD Floating Car Data
Floating car data are gathered from vehicles equipped with appropriate sensors (such as whether windscreen wipers are activated or the vehicle's location and speed) and then passed to traffic management centres that can evaluate this information for general traffic trends
FHWA Federal Highway Administration
FIDIC Fédération Internationale Des Ingénieurs-Conseils
FIFA International Federation of Association Football
FMS Freeway Management System
FPD Fare Payment Device
An EMV certified electronic device, incorporating an EMV Contactless card reader linked to a fare processor, that has the ability to validate the authenticity of a Contactless EMV Smart card, read and write to the AFC Data Structure on the card, and to integrate with the Fare Payment System in terms of access and applicable fares for the IRPTN.
Human Machine Interface or Human Machine Interaction
GDP Gross Domestic Product
GIP Geographical Information Policy
GIS Geographic Information Systems
GNSS Global Navigation Satellite SystemThe combined total of all satellite navigation and positioning systems operating around the world and offering signal reception worldwide
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Acronyms, Abbreviations and Definitions of ITS Systems
The Intelligent Transport Society South Africa Acronyms, Abbreviations and Definitions of ITS Systems is brought to you in the interest of shared learning and knowledge transfer by the Intelligent Transport Society South Africa.
GPRS General Packet Radio Services
GPS Global Positioning System US satellite positioning system used to pinpoint geographic locations worldwide
GSM Global System for Mobile Communications
GUI Graphical User Interface
HAR Highway Advisory Radio
HHV Hand Held Validator Mobile AFC validator.
HMI Human Machine Interface or Human Machine Interaction
HOV High Occupancy Vehicle
HSDPA High Speed Downlink Packet Access
HSWIM High Speed Weigh-in Motion
IBEC International Benefit, Evaluation and Cost Working Group
ICT Information and Communications Technology
ID Identification
IDA Incident Detection Algorithm
IDP Integrated Development Plan
ILD Inductive Loop Detector
IFM Integrated Fare Management
IFMS Integrated Fare Management System
IMS Incident Management System
IP Internet Protocol
IPTN Integrated Public Transport Network
IPTS Integrated Public Transport System
IRPTN Integrated Rapid Public Transport Network
An integrated network of public transport services covering a geographical area. These services comprise intermodal facilities, infrastructure, passenger safety and security, emergency response, intelligent transport systems, and socio economic development plans.
IRT Integrated Rapid Transport/Transit
IS Information Services
ISO International Standards Organisation
IT Information Technology
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Acronyms, Abbreviations and Definitions of ITS Systems
The Intelligent Transport Society South Africa Acronyms, Abbreviations and Definitions of ITS Systems is brought to you in the interest of shared learning and knowledge transfer by the Intelligent Transport Society South Africa.
ITP Integrated Transport Plan
ITS Intelligent Transportation Systems
A broad range of services for the management of transportation systems enabled by the use of information and communication technologies to make the transport system safe, efficient and reliable.
ITSSA Intelligent Transport Society South Africa
JDE JD Edwards reporting, budgeting, procurement & reconciliation system
JP Journey Planner
KPI Key Performance Indicator Type of performance measurement to measure the success of the system implemented.
KZN DoT KwaZulu-Natal Department of Transport
LBS Location-based Services
LCD Liquid Crystal Display
LED Light Emitting Diode
LOS Level of Service
LVP Low Value Payment
MCDM Multi-Criteria Decision Making
MBTF Mean Time between Failures
MCX Micro Coaxial
MMS Maintenance Management System
MNO Mobile Network Operator
MTTR Mean Time to Repair
MTI Metropolitan Transport Information
NDoT National Department of Transport
NHTS National Household Travel Survey
NLTA National Land Transportation Act
NLTTA National Land Transportation Transition Act
NMS Network Management System
NMT Non-Motorised Transport
NOC Network Operations Centre
NTCIP US National Transportation Communication for ITS Protocol
OBU On-Board Unit
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Acronyms, Abbreviations and Definitions of ITS Systems
The Intelligent Transport Society South Africa Acronyms, Abbreviations and Definitions of ITS Systems is brought to you in the interest of shared learning and knowledge transfer by the Intelligent Transport Society South Africa.
OCC Operator Control Centre
OCR Optical Character Recognition
OD Origin-Destination
OEM Original Equipment Manufacturer
OIF Operator Interface
ORS On Road Services On Road Services with SANRAL – Services of heavy and light tow trucks as well as first line medical response vehicles, on the highways
PA System Public Address System
PASA Payments Association of South Africa
PC Personal Computer
PCH Payment Clearing House
PDI Personal Development Initiatives
PE Provider Edge
PGWC Provincial Government Western Cape
PIDS Passenger Information Display System
PIN Personal Identification Number
PIU Portable Inspection Units Is used to inspect traveller’s card and can also be used to provide card information
PMR Private Mobile Radio
PMS Parking Management System or Performance Management System
POS Points of Sale Facility where payment of goods or services by electronic means can be conducted
POSD Point of Sale Device
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Acronyms, Abbreviations and Definitions of ITS Systems
The Intelligent Transport Society South Africa Acronyms, Abbreviations and Definitions of ITS Systems is brought to you in the interest of shared learning and knowledge transfer by the Intelligent Transport Society South Africa.
POSS Points of Sale System
Enables payment of goods or services by electronic means and can be either conducted online (to determine if funds are available in the user’s bank account) or can be conducted offline (where money or transit products are preloaded on the payment media (card)). It includes technology such as listed below:
• Computers: A programmable electronic machine that performs high-speed mathematical or logical operations or that assembles, stores, correlates, or otherwise processes information.
• Cash Registers: A mechanical or electronic device for calculating and recording sales transactions, with an attached drawer for storing cash. The cash register also usually prints a receipt for the customer.
• Balance Reader: An electronic device to read the balance on the system approved bankcard presented.
• Pin Pad: A numeric key pad used by a consumer to enter a Personal Identification Number (PIN) when paying by debit card at a retail merchant or using an Automated Teller Machine.
• Point of Sale Terminal: An electronic device used to process system approved bankcard payments, either online or offline.
• Printer: An electronic device that is linked to the POS device and that can print a paper receipt of the transaction entered.
• Customer Display: An electronic screen linked to a computer and used to display transaction details to the customer.
POTS Plain Old Telephone Service
PPP Private Public Partnerships
PRASA Passenger Rail Association of South Africa
PRX Public Radio Exchange
PSTN Public Switched Telephone Network
PT Public Transport
PTA Public Transport Authority
PTI Public Transport Interchange
PTP Public Transport Plan
PTZ Pan Tilt Zoom
RAM Reliability, Availability and Maintainability
RDS Radio Data System Digital channel transmitted within the FM radio wavelength used to relay traffic messages
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Acronyms, Abbreviations and Definitions of ITS Systems
The Intelligent Transport Society South Africa Acronyms, Abbreviations and Definitions of ITS Systems is brought to you in the interest of shared learning and knowledge transfer by the Intelligent Transport Society South Africa.
RDS-TMC Radio Data System-Traffic Message Channel
RFID Radio-Frequency identification
RLVC Red Light Violation Camera
RNO Road Network Operations
ROM Relative Order of Magnitude
ROW Right of Way
RTI Road Traffic Inspectorate
RTPI Real Time Passenger Information
RWIS Road Weather Information Systems
SANRAL South African National Roads Agency
SAPManagement Software - “Systems Applications and Products in Data Processing”
SAPS South African Police Service
SARCC South African Rail Commuter Corporation
SARS South African Revenue Services
SARTSM South African Road Traffic Signs Manual
SBSA Standard Bank of South Africa
SCADA Supervisory Control and Data Acquisition
SCG Strategy and Corporate Governance
SCOOT Split Cycle Offset Optimisation Techniques
SDTS Short Data Transport Services
SLA Service Level Agreement Part of the service contract that formally defines services.
SMPS Speed Map Panel System
SMS Short Messaging System
SNMP Simple Network Management Protocol
SNP Special Need Passengers
SOP Standard Operating Procedure
STANSA Standards South Africa
SBS Subscription Based Services
TDM Traffic Demand Management
TETRA Terrestrial Trunked Radio
TfL Transport for London
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Acronyms, Abbreviations and Definitions of ITS Systems
The Intelligent Transport Society South Africa Acronyms, Abbreviations and Definitions of ITS Systems is brought to you in the interest of shared learning and knowledge transfer by the Intelligent Transport Society South Africa.
TIC Transport Information Centre
TIM Traffic and Incident Management
TMC Transport Management Centre
A centralised operations centre hosting the IRPTN functions and operations. Various models of a typical TMC’s exist in South Africa and Internationality. A particular model (design) shall be implemented for the start-up of the IRPTN until this function will be hosted at the proposed new UCC
TN Technical Note A document containing specific technical information about a certain component of the IRPTN system
TNPA Transnet National Ports Authority
TOC Traffic Operating Centre
TOC monitors traffic signals communications, status and dispatch to the relevant Depot, as well as communicate to Radio and TV stations and also monitors the motorways’ CCTV and manage VMS’s
TOE Ticket Office Equipment
TOM Ticket Office Machine
TPI Transport Performance Index
TPT Transnet Port Terminals
TIMS Transit Incident Management System
TRS Transport Reporting System
TS Technical Specification
TTD Time to Detect
TRA Traffic and Roads Authority
TVM Ticket Vending Machine
An electronic machine that is used to disperse a product (smart cards – Contactless EMV & Contactless Single-trip ticket) to a consumer after the appropriate amount of money has been paid. Also referred to as a Card Vending Machine (CVM)
UAFC Unified Automatic Fare Collection
UCC Unified Command Centre (UCC)The proposed UCC is a building that will incorporate various CoE operations including the IRPTN operations.
UK United Kingdom
UPS Uninterrupted Power Supply
USA United States of America
UTC Urban Traffic Control
UTG Urban Transport Guidelines
UTMC Urban Traffic Management and Control
V2I Vehicle-to-Infrastructure
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Acronyms, Abbreviations and Definitions of ITS Systems
The Intelligent Transport Society South Africa Acronyms, Abbreviations and Definitions of ITS Systems is brought to you in the interest of shared learning and knowledge transfer by the Intelligent Transport Society South Africa.
V2V Vehicle-to-Vehicle
V2X Vehicle-to-Device
VA Vehicle Actuated
VAN Vehicle Area Network
VANS Value Added Network Service
VDS Vehicle Detection System
VIP Video Image Processing
VMS Variable Messaging System Roadside message displays used for traffic control and information
VMT Vehicle Miles Travelled
VOIP Voice over IP
VPN Virtual Private Network
VRM Vehicle Registration Mark
WAP Wireless Access Point
WiFi Trade name for the popular wireless technologies
WIM Weigh-in-Motion
WiMax Worldwide Interoperability for Microwave Access
WIMS Weigh-in-Motion System
A technology for determining the weight of a commercial vehicle without requiring it to stop on a scale, using AVI to identify the vehicles and other technologies to measure the dynamic tire forces of a moving vehicle and then estimate the corresponding static weight
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Acronyms, Abbreviations and Definitions of ITS Systems
The Intelligent Transport Society South Africa Acronyms, Abbreviations and Definitions of ITS Systems is brought to you in the interest of shared learning and knowledge transfer by the Intelligent Transport Society South Africa.
AFC Validator Contactless smart card reader.
AFC Regulations Regulations governing implementation of fare collection by electronic means, promulgated in 2011 in terms of the National Land Transport Act (NLTA) of 2009.
Articulated Bus An extra length, 18m articulated bus
Bank Issued EMV Fare Medium Card
Bank Issued EMV Fare Medium Card: A contactless EMV Smart card that is issued by a bank to its clients.
Complementary Routes
The portion of the IRPTN network where IRPTN buses travel in mixed traffic lanes and with traditional bus stops on the left side of the road. The difference between a complimentary route and a feeder route is that the buses traveling on a complimentary route can join the trunk route whereas buses traveling on the feeder routes cannot.
Contactless EMV Smart Card
An encrypted dual interface chip card with low monetary value that complies with EMV requirements for interoperability. A bank issued contactless payment instrument that is:
• Supported, regulated and endorsed by banks that are members of the Payments Association of South Africa (PASA) and the relevant Payment Clearing House (PCH);
• Based on EMV standards, conforming to Card Association specifications for contactless payments (MasterCard PayPass or Visa payWave);
• Functions on the principle of pre-authorised debit; and• Conforms to the requirements of the National AFC Data Structure.
Contactless Single-trip card (ticket)
A disposable contactless card (ticket) intended for limited use without a reloading scheme.
Feeder Routes
The portion of the IRPTN network where IRPTN buses travel in mixed traffic lanes and with traditional bus stops on the left side of the road. The feeder route can accommodate only standard buses and buses traveling on the feeder route cannot join the trunk route, except when stopping at a trunk station for a transfer of passengers.
Responsive Control Providing additional green time for the movement containing a bus that is falling behind schedule.
Customer Display An electronic screen linked to a computer and used to display transaction details to the customer.
Signal Priority Providing additional green time or priority green to buses traveling on the dedicated bus lanes on the trunk route.
Standard bus A 12m standard length bus.
Station Enclosed building that allow for pre-boarding fare collection. Stations (low-floor) are situated on the trunk route in the median of the road.
Stops Traditional, open bus stop on the side of the road that are not part of the Trunk route.
Third Party Issued Card
A contactless EMV Smart card that is procured and issued under contract by an organization not related to the IRPTN project.
Trunk Route The portion of the IRPTN network with dedicated bus lanes and stations in the median. The trunk route can accommodate for both normal and articulated buses.
Definitions