Monaco’s daily traffic congestion remains one of the Principality’s most persistent challenges, particularly for the thousands of commuters attempting to enter and leave each day via the Moyenne Corniche and surrounding routes…

Long tailbacks at peak hours have become routine, with motorists often spending considerable time navigating the bottlenecks that form around the Rainier III tunnel and the Cap-d’Ail border.

A recent court decision may mark a step toward easing this pressure. The Administrative Court of Nice has rejected appeals lodged by the mayor of Cap-d’Ail against plans for a new underpass designed to improve traffic flow out of Monaco. The project, backed by both Monaco and the Nice Côte d’Azur Metropolis, aims to create an underground road climbing from the exit of the Rainier III tunnel to reduce congestion for vehicles leaving the Principality.

As reported by Monaco Matin, the ruling clears a major legal obstacle that had stalled progress on the long-discussed infrastructure scheme. The decision also supports related works, including improvements to nearby road junctions and access routes, all intended to address the growing pressure on cross-border mobility.

Despite the favourable ruling, the project remains some distance from reality. Local authorities in Cap-d’Ail have indicated that further surveys and updated feasibility studies will be required before construction can begin, raising the prospect of continued delays.

For now, drivers can expect little immediate relief. Yet with cross-border commuting central to Monaco’s economy and daily life, any long-term solution to the Principality’s notorious traffic gridlock is likely to be closely watched by residents, workers and businesses alike.

Image: Roxana Crusemire