The recent reduction of the speed limit on Paris's Boulevard Périphérique from 70 km/h to 50 km/h has ignited a heated debate.

The measure, championed by Paris Mayor Anne Hidalgo, aims to reduce noise and air pollution, benefiting the 500,000 residents living nearby.

However, it has faced opposition from regional leaders like Valérie Pécresse, who argue it has minimal impact on pollution and traffic congestion.

Trenitalia, the Italian rail company, humorously referenced the speed limit in its advertising campaign, highlighting its high-speed train services.

Meanwhile, enforcement has begun with radars and police checks, despite initial leniency.

The controversy continues as political figures propose transferring control of the road to regional authorities, emphasizing the need for a unified governance approach.