It was estimated that there will be a 44% increase in traffic on the A31 by 2030. Since the pandemic, however, traffic has decreased.

Around 100,000 cross-border commuters cross the French A31 every day to get to work in Luxembourg. Traffic jams have become an increasingly frequent problem, also impacting the environment. About 5 years ago, the "Project A31bis" was launched. A project that could come to a standstill due to the pandemic.

The project foresees a third lane and hard shoulder, better distributing traffic. The sanitary crisis has put the project on hold, however, especially now that traffic has improved significantly with the trend from working in home office.

"The impact in terms of air pollution during the period of confinement is impressive", says Jean-Francois Husson, president of the French regional environmental agency. There is a decrease in carbon dioxide as well as fine particles.

Teleworking, which will undoubtedly continue in parts after the pandemic, could result in permanent relief of the A31. Husson thinks that now might not be the time to launch a project that costs almost two billion euros.

"It will be necessary to project and see in what way this period of economic transition, social, industrial and ecological transition... will succeed in evolving, accompanying, anticipating these changes. This question has not been dealt with objectively and is a matter of uncertainty."

Construction work on the "A31bis" project should start between 2023 and 2027. However, there are repeated discussions about funding and a possible toll on this line.

The situation on the A31 is currently being re-examined. Whether and when we will be able to drive on it is not known.