BS EN 16157-2:2019

What is BS EN 16157-2 ‒ DATEX II data exchange specifications for traffic management about?  

BS EN 16157-2 specifies and defines component facets supporting the exchange and shared use of data and information in the field of traffic and travel. 

The component facets include the framework and context for exchanges, the modelling approach, data content, data structure and relationships. 

BS EN 16157-2 establishes specifications for data exchange between any two instances of the actors such as Traffic Information Centres (TICs), Traffic Control Centres (TCCs), and Service Providers (SPs). 

BS EN 16157-2 covers, at least, the following types of informational content: 

• Road traffic event information – planned and unplanned occurrences both on the road network and in the surrounding environment, 
• Operator initiated actions, 
• Road traffic measurement data, status data, and travel time data, 
• Travel information relevant to road users, including weather and environmental information 
• Road traffic management information and instructions relating to the use of the road network 

BS EN 16157-2 specifies the informational structures, relationships, roles, attributes, and associated data types, for the implementation of the location referencing systems used in association with the different publications defined in the Datex II framework.   

Note: BS EN 16157-2 is applicable to: 

• Traffic and travel information which is of relevance to road networks  
• Public transport information that is of direct relevance to the use of a road network  
• Traffic and travel information in the case of Cooperative intelligent transport systems (C-ITS) 

Who is BS EN 16157-2‒ DATEX II data exchange specifications for traffic management for? 

BS EN 16157-2 on DATEX II data exchange specifications for traffic management is useful for: 

• Road traffic management department 
• Emergency vehicle notification systems 
• Vehicle manufacturing companies  
• Traffic signal control systems 
• Traffic navigation systems 
• ITS station units 

Why should you use BS EN 16157-2‒ DATEX II data exchange specifications for traffic management?  

The European Commission has been supporting the development of information exchange mainly between the actors of the road traffic management domain for a number of years, with the aim to support sustainable mobility in Europe. In the road sector, DATEX II has been long in fruition, with the European Commission being fundamental to its development through an initial contract and subsequent co-funding through the Euro-Regional projects. With this standardization of DATEX II, there is a real basis for common exchange between the actors of the traffic and travel information sector. 

BS EN 16157-2 defines a common set of data exchange specifications to support the vision of a seamless interoperable exchange of traffic and travel information across boundaries, including national, urban, interurban, road administrations, infrastructure providers and service providers. BS EN 16157-2 proves to be a vital constituent to ensure the users of interoperability, reduction of risk, reduction of the cost base, promotion of open marketplaces and many social, economic and community benefits to be gained from more informed travellers, network managers and transport operators. 

BS EN 16157-2 includes the framework and context for exchanges, the modelling approach, data content, data structure and relationships and supports a methodology that is extensible. It deals with DATEX II location referencing that references existing location referencing Standards or European Standards. 

What’s changed since the last update?  

BS EN 16157-2:2019 supersedes DD CEN/TS 16157‑2:2011, which is withdrawn. BS EN 16157-2:2019 includes some technical changes with respect to DD CEN/TS 16157‑2:2011. These include: 

• Introduction of a new location referencing system based on ISO/TS 21219-22 “OpenLR” 
• Introduction of a new location referencing g system for linear features based on GML Line String 
• Introduction of features to deal with 3D coordinates and accuracy assessment 
• Flexibility when using linear referencing systems 
• Remodelling of the “Predefined Locations Publication”