Abbreviations

Results for area 5 Traffic and Travel Information

term
TPEG stream directory
definition

TPEG Structure used for signalling the TPEG Services within a Service Multiplex

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term
TPEG application
definition

set of classes and rules defining TPEG information services at the highest layer of the ISO OSI model

term
application instance
definition

actual data stream containing content as defined by an application

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term
Traveller Information Services Association (TISA)
definition

not-for-profit membership organisation established under Belgian law aiming at developing and maintaining worldwide traffic and traveller information standards such TMC and TPEG

term
Travel information highway (TIH)
definition

open and independent association of information publishers and receivers who have an interest in exchanging travel information using an agreed set of principles

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term
measurement point
definition

several traffic measurements (such as queuing time, number of stops etc.) are assigned to a measurement point; these measurements are taken between the last and the actual measurement point; at least a measurement point is defined at the end of each link by default, but it is possible to define additional measurement points at the end of the vectors the link is build with

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term
route description point
definition

TPEG-locs with additional flags to indicate whether they are start, end and stopping as well as non-stopping points; they are listed in TPEG table pti15

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term
departure point
definition

is the point on the link chain near to the destination at which guidance is switched back to autonomous mode in vehicle system to direct drivers to their destination

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term
spot location
definition

exact points on a road network where the attention is needed, with an indication of which direction of traffic is affected by the alert

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term
transport information central system
definition

centre system that provides information of interest to the travelling public

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term
destination area
definition

the combination of one or more destination zones which have the same RGI; destination areas are described with boundary lines and exist only in the outer regions

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term
foreign location table (FLT)
definition

location table which is different from the default location table used by the transmitter

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term
queuing time
definition

the time accumulated between two measurement points while the vehicle travelled below a predefined queue speed limit

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term
message expiry time (MET)
definition

date and time in accordance with ISO 8601 when the message should be deleted from all TPEG-decoders

NOTE Used for message management purposes.

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term
location table number before encryption (LTNBE)
definition

number with the value 1 to 63 used to identify the Location Table used by the service provider prior to the codes within the table being encrypted for transmission

NOTE LTNBE is transmitted in type 8A groups.

term
version number (VER)
definition

serial number to distinguish successive messages having a particular message identifier

NOTE Version numbers are used incrementally, allowing the progress of an event to be tracked from first notification (VER = 0), through updates, to eventual cancellation (VER = 255).

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term
destination zone
definition

these are closed polygons of any type (except concave) with 7 corners maximum within a beacon region; individual destinations within a zone are considered to have the same destination by the system thereby reducing significantly the possible number of destinations and the guidance information necessary; zones can be of any size to suit the terminal guidance accuracy required and large zones can be sub-divided if required

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term
interval time (IVT)
definition

allows the description of repeated events within a certain time frame, such as running a special service but only for a limited period; for example an additional service may be added for a period of three weeks, but it only runs on Tuesdays and Thursdays, so the STA and STO will mark the period, but IVT will be needed to clarify the addition applies to specific days

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term
location table number (LTN)
definition

number with the value 0 to 63 used to identify the Location Table used by the service provider

NOTE 1 The LTN is generally allocated to each service provider in a country by the relevant government or roads authority from a range assigned to that country. It is transmitted in type 3A groups.

NOTE 2 Value 0, when transmitted in type 3A groups, shows that the service provider is encrypting the location codes.

term
floating car data (FCD)
definition

measured data which are collected in floating cars on a certain time cycle and which contain data on the trip profile and derived quantities

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term
data radio channel (DARC)
definition

an FM sub-carrier system for data transmission

term
service data frame
definition

service frame of type 1 containing TPEG service data as a multiplexed set of Service Component Frames

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term
data telegram
definition

digital message exchanged between two systems

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term
message generation time (MGT)
definition

date and time stamp in accordance with ISO 8601 originated at the actual time and point of message generation

NOTE Used for message management purposes.

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term
length of a speech report
definition

length of a Speech Report, including pauses, in tenths of a second

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term
expiry date
definition

date determined by the service provider on which a particular terminal’s ability to decrypt an encrypted service should cease (i.e. end of the paid subscription period)

term
duration
definition

gives an indication of how long the problem is expected to last

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term
additional information
definition

a combination of several elements to allow making full use of media links, back channels and to facilitate the description of less common occurrences and allow the listing of emergency numbers; for the full use it needs Function Types as they are defined in TPEG table pti30

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term
additional location descriptions
definition

all information needed to filter, select and process a location in only text-based systems

NOTE Information referenced through hierarchically structured text.

term
diversion advice
definition

shows whether or not end-users are recommended to find and follow an alternative route

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term
traffic data
definition

data for qualification of Traffic Events; this includes: values: speed, traffic flow, traffic density; places: position, place designation; facts: description of situation

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term
traffic information centre (TIC)
definition

one of the TTI System operators; each TIC is connected to TMC, PIC, PTC and some other TICs to collect and process information generated at each of the said centres; the TIC disseminates information periodically in accordance with procedures as agreed with the corresponding VASP or from time to time on request from the VASP

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term
traffic situation
definition

technical representation of a Traffic Situation within the onboard equipment, accomplished by a number of Traffic Information Reports; this Traffic Information can be displayed to the customer via suitable terminals

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term
traffic event
definition

an occurrence on a road or in an area that is worthy of reporting, such as a traffic jam, wrong-way driver, or fog

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term
severity factor (SEV)
definition

amount of disruption to traffic likely to be caused by a particular event

NOTE This definition varies from the DATEX Data Dictionary definition (ENV 13106).

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term
FCD server
definition

the collection point for incoming FCD messages

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term
traffic information report (TINFO)
definition

technical representation of a Traffic Event produced by processing traffic data; each Traffic Reports uniquely identified by a number, the TINFO ID, a time stamp, the TINFO version

NOTE If the traffic Event changes, the time stamp changes, but the TINFO ID number does not.

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term
component header
definition

data structure consisting of a component identifier, component length indicator and attribute length indicator

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term
boundary line
definition

the border between two destination areas

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term
application identification (AID)
definition

identification that indicates how to process TPEG content and routes information to the appropriate application decoder

NOTE 1 to entry Each TPEG application has a unique number, which identifies the application according to Clause 5 of ISO TS 18234-7. The application identification is part of the TPEG specification and is defined as and when new applications are developed.

term
specification Identification
definition

string that uniquely identifies a certain version of a certain TPEG application or toolkit

EXAMPLE The TPEG Traffic Event Compact application, version 2.0 is identified by the Specification Identification string “TEC_2_0”.

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term
programme identifier
definition

assigns a unique value to each audio programme source

NOTE 1 to entry Defined in the RDS specification IEC 62106.

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term
service identifier (SID)
definition

SID Code uniquely identifying a service provided by a service provider (e.g. TMC, TPEG)

term
electric vehicle supply equipment identity (EVSEID)
definition

ID that uniquely identifies a concrete charging point globally

NOTE 1 to entry If a charging station has multiple charging points, multiple EVSEIDs are used. See also DIN SPEC 91286.

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21219-25
term
location information
definition
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term
vigilance information
definition

information for a driver to pay additional attention to

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term
information element
definition

IE a functional category of road traffic signs and pictograms performing broadly similar functions

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term
INTER-ROAD
definition

way of referencing locations from other location tables via special multi-group messages

NOTE 1 to entry These messages can be used to inform end-users about problems in other areas, in particular in neighbouring countries.

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term
other network (ON)
definition

notation appended in drawings, where necessary, to indicate that the code being transmitted [e.g. SID (ON)] relates not to the Tuned Service, but to a referenced Other Network

NOTE Data about the Other Network(s) can be pre-stored in terminal equipment.

term
event list
definition

agreed table of event descriptions and parameters, assigning an event code value and giving the details of traffic problem (e.g. congestion caused by accident) and where appropriate its severity (e.g. resulting queue length) or the weather situation

NOTE 1 to entry Defined in ISO 4217:2008.

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term
pictogram category code
definition

codes assigned to the more detailed category of a pictogram type under the service category

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14823
term
service category code
definition

codes assigned to distinguish the service category such as a regulation or public facilities

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14823
term
PIN code
definition

numeric or alphanumeric code required to be entered into a terminal before that terminal is permitted to present decrypted RDS-TMC messages

NOTE The value of the PIN code is calculated by the terminal manufacturer from an algorithm using terminal serial number and one or more application profiles as factors.

term
location code (LC)
definition

numeric or alphanumeric representation of a location according to a pre-determined database, known as a Location Table

term
country code (CCD)
definition

assigns a code to each country internationally recognised codes stipulated by ISO 3166-1 when referring to countries and subdivisions of countries

NOTE 1 to entry Country codes are not unique to one country and can be repeated in non-neighbouring countries.

NOTE 2 to entry In RDS, The Country Code is transmitted in the first 4-bits of the PI code to signal the origin of the audio programme, which may be different to the country where the transmitter is located.

NOTE 3 to entry Defined in the RDS specification IEC 62106.

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term
location table country code (LTCC)
definition

assigns a code to each location table, based on the country of origin of the locations referenced in this table

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term
component
definition

revisable, named, complex data type, not stereotyped as <<DataStructure>>

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term
service component
definition

“channel” within the multiplex of a TPEG stream with each stream comprising a number of these “channels” which are identified by the component identifier in ISO/TS 18234-2 (TPEG-SSF) and linked to the COID and AID in the TPEG-SNI application

NOTE 1 to entry Each service component carries an application instance service identification.

term
TPEG service component
definition

virtual channel for messages of a dedicated TPEG Application

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term
end-user
definition

covers the meaning for all possible terminal clients

NOTE 1 to entry This could be a vehicle driver, a user of a portable or fixed TMC receiver or an intelligent client that processes the information such as in a navigation system.

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term
programme identifier country code (PICC)
definition

first four bits of the Programme Identifier are identical with Country Code if the RDS specification IEC 62106 is implemented

NOTE 1 to entry The CC is signalled in the RDS PI Code for purposes of identifying the country of origin of the audio programme.

NOTE 2 to entry Usually the Programme Identifier Country Code and the Location Table Country Code on an RDS-TMC transmission have the same value, but not always nor necessarily.

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term
terminal
definition

provides the user interfaces with the TMC service

NOTE 1 to entry Their functionality may cover a range of terminal functions from simple terminals with a limited message repertoire and restricted location database to more sophisticated terminals offering full TMC message features and/or a wide range of strategic and tactical location databases.

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term
stop time
definition

end time of a traffic event

term
top level container
definition

any component that is on the same level as the message management container

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term
message management container (MMC)
definition

concept applied to the grouping of all message elements, including Message Management Information, of a TPEG-Message together in one place

term
location referencing container (LRC; TPEG-LRC)
definition

concept applied to the grouping of all the location referencing elements of a TPEG Message together in one place

NOTE 1 to entry See ISO/TS 21219-7 for full details of the Location Referencing container.

term
location container
definition

in TPEG-Loc, a location container is a concept applied to the location referencing elements, to show how they are grouped together

NOTE The TPEG-Loc container comprises a default language code, a location co-ordinates container and an additional location descriptions container.

term
cross reference
definition

CRI pointer to one or more messages in the same, or another TPEG service

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term
qualifier
definition

parameter for an attribute used to express the meaning of pictogram quantitatively

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14823
term
tuning information
definition

enables a RDS-TMC terminal to change from one transmitter to another at boundaries of a particular transmitter's coverage

NOTE 1 to entry Each transmitter should direct the RDS-TMC terminal to specific frequencies or TMC services in adjacent areas.

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term
multipart message management
definition

message management that allows parts of messages being transmitted in packets independently

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term
monolithic message management
definition

message management that allows versioning of messages by updating complete messages only

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term
mapping information
definition

is the information transmitted by the beacon which describes the network in the beacon region and allows the vehicle to track its position as it moves in the network

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term
waypoint
definition

significant points on the route

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term
TPEG service multiplex
definition

multiplex of TPEG Services within one data stream or file

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term
guidance information
definition

a guidance information is a chain of “links” a vehicle has to follow from its actual position to the next beacon or directly to its destination zone, if nearer than neighbouring beacons; both the sequence of those links and their exact geometrical representation are described here, together with attributes, to be displayed to the driver

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term
location table
definition

agreed table which contains for each service information the area, road segment or point location where the source of the problem is situated

NOTE 1 to entry Each location table is identified by three elements: a Number – Location Table Number, a Location Table Country Code, and a Location Table Extended Country Code. The combination of these three elements identifies a Location Table uniquely. Each service has a Location Table defined by Location Table Number, a Location Table Country Code and Location Table Extended Country Code.

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term
charging point
definition

unit in a charging station at which an electric vehicle can be supplied with power

NOTE 1 to entry A charging station can provide multiple charging points, which again can contain multiple sockets to support more than one charging connector type. In general, as soon as one socket at a charging point is in use, the charging point is occupied. Typically for each charging point, a parking   is provided at the charging station.

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21219-25
term
charging station
definition

station that consists of a physical unit (typically a column or cabinet-like structure) containing and managing one or more charging points offering the end-user the possibility to be authorized (typically by means of a card reader) and activate one of the charging points at the charging station, hook up the electric vehicle and start the charging procedure

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21219-25
term
queue speed limit
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term
location referencing
definition

means to provide information that allows a system to accurately identify a location

NOTE 1 to entry The content of a location reference allows the location to be presented in a graphical or textual manner to the end-user (e.g. coloured network graphs) as well as to be used for navigational systems purposes.

term
ILOC referencing
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term
RTM-LOC referencing
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charging park
definition

park that consists of multiple physical charging stations which technically and/or logically belong together and are being operated together

NOTE 1 to entry This may be the case, for example, in a commercially operated car park or in a city district where publicly operated charging stations are grouped together. Charging parks are being operated by charging park operators.

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21219-25
term
start time
definition

beginning time of a traffic event

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term
continuity index field
definition

helps distinguish between different multi-group messages

NOTE 1 to entry All groups within any particular multi-group message contain the same value of this continuity index.

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term
radius of expansion
definition

in TPEG-Loc, a radius of expansion is described by a circle of a certain radius value around a fixed point

term
bypass description
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network description
term
route description
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event description
definition

gives details of the traffic problem (e.g. congestion caused by accident) and where appropriate its severity (e.g. resulting queue length) or weather situation

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position
definition

position defines where an event has taken place in relation to the road: e.g. driving lane 1, hard shoulder, central reservation, etc.

NOTE The driving lanes are numbered according to the usual local practice, i.e. driving Lane 1 is the lane nearest to the hard shoulder. In countries which drive on the left, driving lanes are hence numbered from left-to-right, and in countries driving on the right, from right-to-left.

NOTE Position is an event element and NOT a location reference element.

term
electromobility provider
definition

business partner for the end-users who charge their electric vehicles

NOTE 1 to entry Typically, an end-user has a contract with an EM provider, the details of which are connected to an (RF) ID card [having an (internationally) unique card number] that is used for authorization and billing. The EM provider sees to it that his customers can charge their vehicles in as many charging parks as possible and bills the customer according to the respective contract.

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21219-25
term
energy provider
definition

provider that includes all relevant energy suppliers, local solar power generators, as well as traditional major companies in the power industry sector

NOTE 1 to entry It is their role to provide energy to the charging park operators.

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21219-25
term
charging park operator
definition

operator who manages one or more charging parks

NOTE 1 to entry The charging park operator maintains the charging site(s) and is a business partner to the energy provider and the EM provider. Typically, a charging park operator bills the end-user based on “roaming agreements” with multiple EM providers.

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21219-25
term
service facilities
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term
access profile
definition

an Access Profile uniquely describes a particular RDS-TMC service and subscription period

term
radio data system (RDS)
definition

digital information channel on FM sub carrier

term
service component frame
definition

data structure implementing the TPEG Service Component stream in the TPEG binary representation

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term
service frame
definition

data structure implementing the TPEG Service in the TPEG binary representation

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corner point
definition

these are the corner points represented by geographical coordinates, which identify the destination zones and areas

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term
extended country code (ECC)
definition

assigns a unique code to each country

NOTE 1 to entry The combination of ECC and CC algother assigns a unique code for each country.

NOTE 2 to entry Defined in the RDS specification IEC 62106.

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term
location table extended country code (LTECC)
definition

assigns a code to each location table, based on the country of origin of the locations referenced in this table

NOTE 1 to entry Together the LTECC, LTCC and LTN identify a location database uniquely.

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term
graphic data dictionary (GDD)
definition

catalogue of codes for pictograms organised systematically

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14823
term
TPEG service
definition

multiplex of TPEG Service Components with a dedicated Service Identifier

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term
broadcast service
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direction and extent
definition

identifies the adjacent segments or specific point locations also affected by the incident, and where appropriate the direction of traffic affected

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bypass link
definition

prominent waypoints on a Bypass Route

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term
TPEG Structure
definition

data structure used by TPEG on the particular protocol layers of the service transmission

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term
system information
definition

enables an RDS-TMC terminal to decode and evaluate essential data, which describes the transmission being received

NOTE 1 to entry System Information indicates an RDS-TMC service and comprises some service characteristics needed to select the RDS-TMC service.

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term
time schedule GST (TS-GST)
definition

TS-GST optional table that indicates the operation times of selected service components

term
content description GST (CD-GST)
definition

CD-GST optional table that gives the textual descriptions of selected service components

term
service component reset GST (SCR-GST)
definition

optional table that is used by the service provider to delete application specific data older than a certain moment

term
fast tuning GST (FT-GST)
definition

FT-GST directory of the applications and content of the service that indicates in which components the relevant information can be found

NOTE 1 to entry This contains the minimum set of information required for the acquisition of application data.

term
guide to the service tables (GST)
definition

guide that carries the basic service information

EXAMPLE Service structure, service timing and content description, etc.

term
silent cancellation message
definition

used to delete messages from the end-user terminal

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term
TPEG client
definition

device or entity on the receiving side of the TPEG transmission chain

NOTE 1 to entry May consist, e.g. of a broadcast receiver, a TPEG decoder unit.

term
TPEG server
definition

device or entity on the sending side of the TPEG transmission chain

NOTE 1 to entry May consist, e.g. of a TPEG encoder, a stream encoder, a network transmission unit.

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term
job
definition

a request to the FCD server which may comprise both the collection of additional measured data from a specific geographical area and the cancellation of a previous request

NOTE Collection jobs are converted into control information by the FCD server and relayed to the floating cars.

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term
user message
definition

describes the messages which are potentially made known to the end-user

NOTE 1 to entry They contain event, location, direction and extent, duration etc. descriptions.

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term
local hazard warning
definition

specific form of traffic events which being safety-related messages are sent with high priority to assist a driver from encountering dangerous situations

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Broadcast/TPEG (B/TPEG)
definition

the EBU project group name for the CEN ISO TS 18234 specification drafting group

term
mobile originated
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zone
definition

stretches of road network which represent a continuous area of warning affecting only one traffic direction

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message
definition

collection of coherent information sent through an information channel

term
message
definition

unit of information that is controlled under a message ID and contains a MessageManagementContainer, MMCMasterMessage or MMCMessagePart component

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FCD message
definition

the message transmitted by an onboard unit (OBU) to the FCD server

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road traffic message (RTM)
definition

describes an event or a collection of related events, or status information and including message management information; the latter is contained in the message header

term
parameter message
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message report type
definition

element to signal the type of message for presentation purposes

NOTE It may be an incident message report, station/terminal information, route information or individual service information, as defined in TPEG table pti27.

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