Results for area 4.1 Data
point at the intersection of two roads; the given co-ordinate is accompanied by up to three road descriptors to match it exactly on the map
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
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
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
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
location table which is different from the default location table used by the transmitter
the time accumulated between two measurement points while the vehicle travelled below a predefined queue speed limit
date and time in accordance with ISO 8601 when the message should be deleted from all TPEG-decoders
NOTE Used for message management purposes.
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
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.
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.
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).
measured data which are collected in floating cards on a certain time cycle and which contain data on the trip profile and derived quantities
length of a Speech Report, including pauses, in tenths of a second
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)
gives an indication of how long the problem is expected to last
shows whether or not end-users are recommended to find and follow an alternative route
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).
geocodes are unique identifiers unmistakably defining important points on road networks; geocodes can be derived from /converted into WGS 84 co-ordinates by the algorithm described in CEN/TS 14821-3
a coding method
these are the corner points represented by geographical coordinates, which identify the destination zones and areas
the border between two destination areas
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.
assigns a unique value to each audio programme source
NOTE 1 to entry: Defined in the RDS specification IEC 62106.
SID Code uniquely identifying a TMC service provided by a service provider
IE a functional category of road traffic signs and pictograms performing broadly similar functions
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.
number given in confidence by a service provider to a terminal manufacturer, identifying which one of eight possible encryption tables the service is using for encryption
NOTE The Service Key is NOT transmitted.
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.
numeric or alphanumeric representation of a location according to a pre-determined database, known as a Location Table
assigns a code to each country
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.
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.
assigns a code to each location table, based on the country of origin of the locations referenced in this table
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.
beginning time of a traffic event
in TPEG-Loc, a radius of expansion is described by a circle of a certain radius value around a fixed point
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.
identifies the adjacent segments or specific point locations also affected by the incident, and where appropriate the direction of traffic affected