Swiss voters are set to decide on the controversial ‘Expansion Step 2023 for National Roads’, which includes significant upgrades to key highways. While proponents argue for improved safety and efficiency, opponents voice concerns over environmental impacts and costs. Recent polls show a divided electorate, with support for the expansion declining sharply. If approved, the plans would invest 4.9 billion Swiss francs in six major highway sections. The outcome could affect traffic management and environmental policies across the region.