Source: DATEX II - Variable Message Signs

Information displayed on variable message signs along roads for information and traffic management purposes, provided by NDIC for the whole Czechia, pushed on occurrence, in a DATEX II format.

Data source describes the information currently displayed on the individual signs (on the portal), including in the case of mobile trailers the configuration change of the displayed area and dynamic information about its position.

General Parameters

Parameter Value
uri x-source:cz-ndic_d2-vms
provider NDIC
status test run 1, publication start: 2022-02-16
licence 2 Contract and Free of charge
subscription process Traffic Data Free Subscription


Parameter 2 Value
resource type data set
category Parking and rest area information Dynamic traffic signs and regulations Road work Unexpected road events and conditions Real-time traffic data
detailed type  Current availability of parking places (truck parking) Road access conditions Lane access conditions Tunnel access conditions Dynamic speed limits Other temporary traffic management measures or plans Short-term road works Accidents and incidents Poor road conditions Weather conditions affecting road surface and visibility Expected delays Location and length of queues
data set language cs
Parameter Value
related data sources DATEX II - Variable Message Signs (predefined locations); uri:x-source:cz-ndic_d2-vms-table


Parameter 2 Value
area CZ0
network Motorways Arterial road network Regional roads Urban and local roads
transport modes car truck motorcycle bus

Access, used formats and protocols

Parameter Value
access / API
note Data portal od RSD for data subscription to a specific data sources.
status in operation (from 2021/07/01)

Formats and Protocols

Parameter Value
format DATEX II VMS Publication – Variable Message Signs, uri:x-format:cz-ndic_d2-vms-v1.0
protocol HTTP PUSH on Change occurrence, uri:x-protocol:cz-ndic_push-v1.1

Quality information

Parameter 2 Value
update frequency On occurrence
quality assesment internal control mechanism and cross validation
related EC Regulations and conformance docs rtti srti sstp

  1. From 02/2022 in a test mode, from 06/2022 in production mode. 

  2. Classification corresponds to the Coordinated Metadata Catalogue CMC as defined by the EU-EIP project. 

  3. Extended profile specifies source content (in detail) with the focus on reusable patterns (profile choices), that are described in a methodology here (czech only).