N6 – Congestion

Congestion – Harmonised Network Operation Services

Substantial changes are expected in the environment of NRA’s, likely to have an impact on their operation and performance regarding traffic control, congestion harmonization and other fields.

Many NRA’s are in the process of moving from single road management towards integrated network management and cooperation with other networks, which enhances overall performance and resilience, but adds complexity.

Demand management, incident management and clever planning of maintenance (mitigating measures) also have positive effects.

NRA’s, road operators and public transport operators will have to continue to work closely to cope with the growing mobility of changing society. Existing and new ITS tools as well as data management and -exchange will play a role by enabling active, integrated traffic management on the overall road and transport network (relation to TEN-T and to European corridors).

The explosive penetration of individual mobile devices and information (i-phones etc.) will continue to increase, likely to result in more independent behaviour of road users with possible effects on congestion and the results of centralised traffic management.

In general other players in the market will play a bigger role with effects on a.o. traffic management and congestion; relations and cooperation with other stakeholders will become more prominent (e.g. in the areas of cooperative systems, route guidance, traffic information, multimodal travel information; partially in other tasks).

In summary, for NRA’s the management of the overall traffic will become an increasing challenge due to higher availability and penetration of individual information and their (private) providers.


  • Get a better understanding of best actions to be taken to prevent and/or reduce congestion (reduce bottlenecks) and to deal with incidents and planning of maintenance more effectively.
  • Collect and share best practice / examples of cross-network management (cross border, cross regional, urban-interurban, multi-modal etc.).
  • Provide ideas how to link regional and national networks and their responsible authorities to operate more efficiently as a system.
  • Provide a common understanding of requirements of NRA’s for integrated network operation services to avoid / reduce congestion in collaboration with new (private) providers / players and new systems.
  • Identify how / where ITS and its players can support the targets, the potential and limitations of ITS, the basic conditions for implementation, and the most urgent needs for harmonisation.

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