Traffic jams mean a heavier traffic load and lots of shade on the underlying road surface. The traffic load is not a problem. The shadows during a traffic jam will cause the energy yield to hold up locally for a short amount of time. However, for most of the roads the amount of time that traffic jams occur is so short that we do not expect significant yield losses. On road sections where a lot of traffic jams occur, application of SolaRoad paving is less suitable. The exact influence of shading by road users is part of the pilot study.