C-Roads Greece


The main objective of C-Roads Greece is to conduct a national pilot on a specific set of Day 1 and Day 1.5 C-ITS services (see below), by using a balanced mixture of ETSI ITS G5 and cellular communication technologies. The ultimate goal is to pave the way for large-scale deployment of interoperable C-ITS services in Greece and Europe-wide.

C-Roads Greece includes two pilot sites in Greece, Egnatia Odos Motorway and Attica Tollway. The following Day 1 and Day 1.5 C-ITS services recommended by the C-ITS Platform will be tested in each pilot site:

  • Egnatia Odos Pilot: Road works warning (Lane Closure); Hazardous Locations Notification (Weather conditions warning, Obstacle on the Road); In-vehicle signage (Embedded VMS “Free Text”); Probe vehicle data (CAM Aggregation) and Traffic info and smart routing.
  • Attica Tollway Pilot: Road works warning (Lane Closure); Hazardous Locations Notification (Weather conditions warning, Stationary vehicle); In-vehicle signage (embedded VMS “Free Text”, Shockwave damping) and Traffic info and smart routing.

The services of each pilot site will be specified following the Common C-ITS Service Definitions of the C-Roads Platform.

Location Description

The Greek pilot will provide and test C-ITS services at two test sites, one in Northern Greece (Egnatia Pilot) and one in Attica Region (Attica Pilot). The specific location of each pilot site is the following:

  • Egnatia Pilot (Right in the picture below): The road section of Egnatia Odos motorway that will be included in the C-Roads Greece pilot is a rural road section with continuous bridges and tunnels of approx. 30 km with Average Annual Daily Traffic (AADT) of 11,230 (HGV: 16%). It is managed by a Traffic Control Center (TCC) and equipped with ITS related equipment (i.e. Variable message signs, CCTV traffic cameras, traffic detection inductive loops, meteorological & smoke sensors).
  • Attica Pilot (Left in the picture below): This pilot will invove app. 21 km of the central sector of Attica Tollway (motorway consisting of the ring road of the greater metropolitan area of Athens) along the main axis of the road, between the Dimokratias Interchange and Paiania Interchange (from km 21 to km 42 km of the Attica Tollway), corresponding to the section of the motorway with the heaviest traffic (AADT: 53,000 vehicles as per data registered in 2018). This section is also managed by a Traffic Management Center (TMC).


The coordinator of C-Roads Greece is the Hellenic Ministry of Infrastructure and Transport. The implementing bodies are the Institute of Communication and Computer Systems (ICCS), University of Patras, Centre for Research and Technology Hellas and Egnatia Odos (motorway operator in Northern Greece).

The consortium includes Attikes Diadromes, the motorway operator in Attica region, the association of all Tollways in Greece, namely Hellastron, and the biggest mobile network operator in Greece, COSMOTE, taking care of the deployment of C-ITS services using its operational cellular network. Moreover, the consortium comprises highly innovative companies in the field of cybersecurity, transport and logistics, 3rd party transport services provision, cloud infrastructure and IoT (G4S, Telenavis and Intracom).


The schedule starts with the actual kick-off of the project in June 2019. In the beginning the target is to contribute to the activities and WGs of the C-Roads platform, while the actual Greek pilot activities will start January 2020. The plan is to launch all planned C-ITS services by end of 2021. The project will conclude in June 2023.


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