Transport information and control systems — In-vehicle navigation systems — Communications message set requirements
1 Scope
This standard specifies message content and format utilized by in-vehicle navigation systems. Its emphasis is on messages that are required to generate or enhance routing instructions. There is a particular focus on messages that would not necessarily be included in a more general traffic management message list.
Although this standard emphasizes requirements for Locally Determined Route Guidance (LDRG) systems that utilize on-vehicle map databases, it also includes messages that would be utilized primarily by Centrally Determined Route Guidance (CDRG) systems and certain value-added messages.
2 Terms and Definitions
For the purposes of this standard, the following terms and definitions apply.
2.1
locally determined route guidance system (LDRG)
system which provides a driver with step-by-step driving instructions that are determined by an on-vehicle system
Note: The system typically consists of a display screen, a computer, routing and guidance software, a navigable map database, and positioning equipment to track the vehicle's location as it proceeds along its path.
2.2
centrally determined route guidance system (CDRG)
system which provides a driver with step-by-step driving instructions that are similar to those offered by a LDRG
Note: With a centrally determined system, the routing instructions are determined at an off-vehicle location and transmitted to the vehicle.
2.3
message
data element which is formatted for transmission and broadcast by means of electromagnetic field propagation
2.4
standard location references (SLR)
standardized method for referencing geographic locations including points, links between points and geographic areas
2.5
traffic message centre (TMC)
centre that transmits (receives) messages to (from) the vehicle by any communication means other than short range, vehicle-to-roadside communications (beacons)
Note: The bulk of these messages are expected to be traffic related.
2.6
roadside beacon (RS)
short-range vehicle-to-roadside communication device with the inherent location feature that if the vehicle is receiving the signal, then the vehicle has to be positioned in a specific, localized area
3 Message set: Contents and format
The messages covered by this standard can be divided into:
——Messages that are required by route guidance systems to determine their recommended routes on-board the vehicle (LOCALLY DETERMINED). These address a wide range of information such as traffic conditions, tolls, road construction and availability of parking (see Table 1).
——Messages that are required by route guidance systems for which routes are determined off-board the vehicle (CENTRALLY DETERMINED). These primarily focus on requesting and transmitting routing information (see Table 2).
——Value-added messages that could be displayed by an in-vehicle navigation system, routed through a system, or utilized by a system in providing guidance. These include messages for communicating information regarding items such as emergencies, toll and fee payments, and ridesharing (see Table 3).
Foreword i
1 Scope
2 Terms and Definitions
3 Message set: Contents and format
Bibliography
Standard
GB/T 23434-2009 Transport information and control systems - In-vehicle navigation systems - Communications message set requirements (English Version)
Standard No.
GB/T 23434-2009
Status
valid
Language
English
File Format
PDF
Word Count
15000 words
Price(USD)
420.0
Implemented on
2009-11-1
Delivery
via email in 1 business day
Detail of GB/T 23434-2009
Standard No.
GB/T 23434-2009
English Name
Transport information and control systems - In-vehicle navigation systems - Communications message set requirements
Transport information and control systems — In-vehicle navigation systems — Communications message set requirements
1 Scope
This standard specifies message content and format utilized by in-vehicle navigation systems. Its emphasis is on messages that are required to generate or enhance routing instructions. There is a particular focus on messages that would not necessarily be included in a more general traffic management message list.
Although this standard emphasizes requirements for Locally Determined Route Guidance (LDRG) systems that utilize on-vehicle map databases, it also includes messages that would be utilized primarily by Centrally Determined Route Guidance (CDRG) systems and certain value-added messages.
2 Terms and Definitions
For the purposes of this standard, the following terms and definitions apply.
2.1
locally determined route guidance system (LDRG)
system which provides a driver with step-by-step driving instructions that are determined by an on-vehicle system
Note: The system typically consists of a display screen, a computer, routing and guidance software, a navigable map database, and positioning equipment to track the vehicle's location as it proceeds along its path.
2.2
centrally determined route guidance system (CDRG)
system which provides a driver with step-by-step driving instructions that are similar to those offered by a LDRG
Note: With a centrally determined system, the routing instructions are determined at an off-vehicle location and transmitted to the vehicle.
2.3
message
data element which is formatted for transmission and broadcast by means of electromagnetic field propagation
2.4
standard location references (SLR)
standardized method for referencing geographic locations including points, links between points and geographic areas
2.5
traffic message centre (TMC)
centre that transmits (receives) messages to (from) the vehicle by any communication means other than short range, vehicle-to-roadside communications (beacons)
Note: The bulk of these messages are expected to be traffic related.
2.6
roadside beacon (RS)
short-range vehicle-to-roadside communication device with the inherent location feature that if the vehicle is receiving the signal, then the vehicle has to be positioned in a specific, localized area
3 Message set: Contents and format
The messages covered by this standard can be divided into:
——Messages that are required by route guidance systems to determine their recommended routes on-board the vehicle (LOCALLY DETERMINED). These address a wide range of information such as traffic conditions, tolls, road construction and availability of parking (see Table 1).
——Messages that are required by route guidance systems for which routes are determined off-board the vehicle (CENTRALLY DETERMINED). These primarily focus on requesting and transmitting routing information (see Table 2).
——Value-added messages that could be displayed by an in-vehicle navigation system, routed through a system, or utilized by a system in providing guidance. These include messages for communicating information regarding items such as emergencies, toll and fee payments, and ridesharing (see Table 3).
Contents of GB/T 23434-2009
Foreword i
1 Scope
2 Terms and Definitions
3 Message set: Contents and format
Bibliography
