The test was commissioned by Rijkswaterstaat's C-ITS Corridor project team. The test on the A58 was undertaken in cooperation with the A58 Shockwave traffic jams project of the Province of North Brabant.
Traffic on the Netherlands' highways has been monitored for years. This makes it possible to inform the emergency services soon after an accident, and to detect traffic jams. The traffic is monitored using cameras and also with detection loops in the road surface which measure traffic density and speed. The more information about the situation on the road is available to road operators, the more effective public traffic management can be. Sensor data from vehicles (e.g. position, speed, acceleration and braking force) can give road operators an even better impression of the situation on the road, and the condition of the road surface. This data can be anonymised before transmission. It is expected that sensor data from vehicles will result in better and more cost-effective data gathering for dynamic traffic management and other applications. Hence, Rijkswaterstaat is developing the Probe Vehicle Data service in the Cooperative ITS Corridor project, together with Germany and Austria. Probe Vehicle Data refers to sensor data: all data generated by the sensors in a vehicle.
Recently, the suppliers and organisations involved in the A58 Shockwave traffic jams project (initiated by the Province of North Brabant and the Better Benutten (Making better use of the infrastructure) programme) undertook a number of tests of the Probe Vehicle Data service. During these tests, the specifications developed by Rijkswaterstaat (such as the Dutch Corridor Profile) for the Probe Vehicle Data use case were applied and validated. These tests used the WiFi-P infrastructure of the A58 Shockwave traffic jams project. This cooperative infrastructure was specified, developed and implemented by a public/private partnership at an earlier stage.
During the test, which was coordinated by the Traffic Innovation Centre at Helmond, the on-board units of passing test vehicles transmitted messages containing information about the vehicle, such as its position and speed. The messages were received over the secure ETSI G5 WiFi connection. Test vehicle messages were also transmitted over the mobile 3G/4G networks. This was done using the ZOOF app of the A58 Shockwave traffic jams project. The initial findings were promising. The logs of the messages transmitted by the test vehicles could be read correctly. A web viewer was used to present the exact positions and routes of the test vehicles.
This joint test by two innovative Dutch projects on a section of the international ITS Corridor was a practical implementation of the Netherlands' objective of being a leader in smart mobility. Through the close cooperation both project teams developed a better understanding of what is needed, in terms of technology, to further specify and develop this international service in the Netherlands. The test also provided information about the opportunities which sensor data provides for more effective and efficient traffic management. During the tests it was assessed if the data quality was at least equal to that provided by detection loops in the road surface. The test outcome will be assessed in detail in the upcoming period.
Participants in the project
Rijkswaterstaat (steering and development)
Province of North Brabant
A58 Shockwave traffic jams project