Switzerland is set to vote on a significant highway expansion plan, with a proposed investment of 5 billion Swiss Francs.

The expansion includes additional lanes and tunnels across key routes, such as the A1 near Bern and the A2 in Basel.

This proposal has polarized the nation, with the government and major parties supporting it, citing reduced congestion and improved traffic flow.

However, environmental groups and some political factions oppose the plan, arguing it contradicts climate goals and increases traffic.

Recent polls indicate a tight race, with public opinion divided.

The outcome of this vote could have lasting implications for Switzerland's transportation infrastructure and environmental policies.