Vehicle2X communication

The intelligent digitization of roads

Connect vehicles to the infrastructure and manage traffic more precisely and efficiently than ever before - significantly reducing traffic jams, accidents and emissions.

ITS-G5 is ready to roll

And what is ITS-G5? ITS G5 is a broadcast technology, capable of delivering secure ad-hoc direct vehicle-to-vehicle and/or vehicle-to-infrastructure communication. C-ITS (Cooperative Intelligent Transport Systems) are the technologies associated with the concept of sharing information and working together. Siemens and other leading road traffic companies support the swift deployment of the right framework conditions for improving road safety and traffic efficiency.

Connected traffic systems

Future traffic is connected

Digitalization of roads is an essential component of future mobility: Intelligent communication technologies connect vehicles of all kinds with the infrastructure. They help cities and municipalities to improve the quality of life and form the basis for sustainable growth.

The paths of vehicles and other road users cross at many points. As part of the "Internet of Things", Vehicle2X connects (autonomous) vehicles and infrastructure.

And this is how roads become part of the "Internet of things"

Vehicle2X makes it possible: The Cooperative Management System (CMS) links vehicles with the infrastructure and traffic management centers. The principle is simple: A Road-Side Unit (RSU) communicates with both the traffic management center and the vehicles. This is how Vehicle2X works:

  • The RSU sends time-critical information (e.g. the current signal status) directly to the vehicles
  • Static and non-time-critical information (e.g. sign information) can be communicated to the vehicles either by the RSU or the CMS
  • Vehicles continuously report their current position, speed and direction of travel via their Vehicle2X Onboard Units.
  • The RSU collects this information
  • The CMS uses this information to manage traffic more efficiently and in real time
Sitraffic Vehicle2X

Connect roads, infrastructure and vehicles in real-time

Vehicle2X by Yunex Traffic connects infrastructure systems and vehicles. It can be integrated into existing traffic management centers such as Sitraffic Scala and Concert as well as used as a stand-alone solution. So you can pave the way for the digitalization of the road.

Vehicle2X connects the road to the "Internet of things".

With Sitraffic Vehicle2x, connected traffic systems become reality.

Sitraffic Vehicle2X technology helps cities and municipalities to connect the road to the "Internet of Things". This enables cities and municipalities to implement innovative solutions for traffic management – and prepare for autonomous driving today. Sitraffic Vehicle2X links vehicles and infrastructure with safe technology and thus helps:

  • Increase traffic safety and reduce the accident rate
  • Optimize traffic flow and reduce traffic jams and congestion
  • Reduce the travel time
  • Reduce vehicle emissions

Launch an innovative solution on the road with Vehicle2X.

Sitraffic Vehicle2X offers cities and municipalities a multi-functional and future-proof solution with high investment protection. Sitraffic Vehixle2X integrates all internationally required V2X communication standards and is also fully compatible with all Vehicle2X solutions in hardware and software. Thanks to open interfaces, Sitraffic Vexicle2X can communicate with numerous controllers via standard connections and can also be extended later with additional communication modules, e.g. for web-based controllers. Of course Sitraffic Vehicle2X offers you a high level of IT security thanks to the Siemens Mobility and Yunex Traffic Cyber-Security process and a defined security concept for maintenance and service.

Secure communication between vehicles and infrastructure

Sitraffic Vehicle2X – the components

Sitraffic Cooperative Management System (CMS)

Sitraffic CMS is the heart of control. It links and monitors the Roadside Units (RSU) in a central system and sends messages via the RSUs to the road users. Sitraffic CMS allows flexible monitoring of RSUs and traffic at any time and any place:

  • Easy to use thanks to geographical views and displays of traffic messages and dat
  • Radio communication (over-the-air) or cable networks for communication with the RSU
  • Based on current technologies like Datex II Interface, Service/Debug Tools and Map2x

Sitraffic Roadside Unit (RSU)

The Sitraffic RSU is the central interface for wireless communication between roadside infrastructure and the Onboard Unit (OBU). The bidirectional communication via the RSU enables both the transmission of information (e.g. speed limits) and the reception of Onboard messages in real time. A powerful dual-core CPU offers numerous interfaces with high safety standards and ensures a fast connection to back-end systems.

  • Communication via WiFi 802.11p and LTE-V2x
  • Uses the 5.9 GHz radio band reserved for traffic applications
  • Easy installation due to robust weatherproof housing, stand-alone or integrated with a traffic control unit

Sitraffic Onboard Unit (OBU)

The Sitraffic OBU integrates vehicles into cooperative ITS systems (CITS) and the deployment of infrastructure-driven C-ITS services and applications. Via the OBU, Sitraffic Vehicle2X can send hazard alerts to service vehicles or prioritize public transport and emergency vehicles. It enables road users to adapt their driving behavior at an early stage, thus increasing safety for pedestrians and cyclists.

  • Powerful transceiver for smooth communication with the RSUs
  • Very high accuracy of position and speed determination
  • Easy installation (plug and play) and operation for the driver
  • Retrofittable and mountable in almost any vehicle

Sitraffic Map2x

With the Map2x tool, you can provide drivers conveniently with messages about intersections, for example, to suggest the optimal speed for a green wave.

  • Generate messages with information about the topology of lanes and signal groups of an intersection.
  • Send the MAP and SpaT message to vehicles via the Roadside Unit
  • OpenStreetMap and Google Maps integration
  • Import of traffic data from Sitraffic Office via the optional "Sitraffic Tools Map Export"
Vehicle2X in operation

The digitalization of roads starts now

Cooperative systems are already a reality. In these (research) projects, Sitraffic Vehicle2X is already helping to prevent accidents, keep traffic moving and improve fuel efficiency.

Project Partner | USA, New York – Germany

New York City Department of Transportation

  • Improve the safety of travelers and pedestrians in the city through the deployment of Vehicle to Vehicle (V2V) and Vehicle to Infrastructure (V2I) technologies
  • Included in this project are three distinct areas in the boroughs of Manhattan and Brooklyn
  • Yunex Traffic is supplying 550 Roadside Units (RSU) and systems integration services
Project Partner | USA – Germany

Tampa Hillsborough Expressway Authority

  • Intelligent traffic signal systems to coordinate signals and pedestrian crossings that respond immediately to traffic conditions in real-time and provide signal priority
  • Intersection Movement Assistance that warns drivers when it is unsafe to enter an intersection, for example when something may be blocking the driver’s view of opposing of crossing traffic, and forward collision warnings for hard braking in the traffic stream

  • Probe-enabled traffic monitoring to transmit real-time traffic data between vehicles - improve safety, enhance mobility, and reduce the environmental impact of surface transportation in downtown Tampa

Industry Partner | Netherlands - Germany - Austria

Corridor Rotterdam - Frankfurt a. M. - Vienna

  • Improved construction site management, relieved traffic
  • Traffic signs and traffic light information are transmitted to the vehicle
  • Optimized traffic flow
Project Partner | Vienna

Testfield Telematik in Vienna

  • Drivers dynamically adapt driving behavior to environmental conditions
  • Traffic flow is significantly harmonized
  • Optimized traffic flow
Your contact

Bring digitalized roads to your city

The traffic of the future is connected - and this future starts now. How to make the best use of Vehicle2X? We will develop your individual Vehicle2X solution together with you.

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