The N470: a road full of innovations


The N470: a road full of innovations

The N470 is an important link between the A4, the A13, and the A12. Over the past years, traffic has increased significantly, partly due to the rearrangement of the A4. This is why the Province of Zuid-Holland takes measures to improve the traffic flow on the N470. The N470 will become a road that generates and saves energy. Boskalis has been granted the contract for the project and, as a partner of Boskalis, Dynniq will be responsible for all traffic and energy systems.

The N470 generates energy: this is the starting point of the project. The innovative microgrid created by Dynniq forms the backbone of the road and for all innovations that will be implemented along the road. The microgrid will be a direct current (DC) system instead of the usual alternating current (AC).

It is estimated that about 80 to 85 percent of all electrical devices are powered internally by direct current, despite having an AC plug. In addition, many renewable energy sources, such as solar panels, also work on direct current. By creating a direct connection between the DC grid and the energy sources and the users, we eliminate the conversions from direct to alternating current, which results in fewer conversion losses and thus a better return.

At the N470, the DC microgrid connects the power supply from the Energy Wall, a sound barrier that simultaneously generates power, with the users such as the traffic lights and smart street lighting. The street lighting can be controlled remotely, making it is possible to react in real time to incidents on the road. This is the first time a smart lighting solution will be linked directly to the DC grid. And this is not the only innovation along the road: The project involves a twelve-year collaboration that will continue to innovate. All traffic control installations along the N470 will be replaced with the latest versions. With the application of the adaptive traffic control system ImFlow, the registration of traffic will improve and the traffic lights will subsequently adjust better to the traffic. This will improve the traffic flow and reduce CO2 emissions.

Preparations have already begun; the first outdoor work activities will commence in October. The completion is scheduled for September 2019, after which the collaboration will continue for 11 more years for maintenance and innovation.

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