Voters will get the final say on a major autoroute expansion which includes an extra lane on the A1 between Geneva and Lausanne.
Anti-roads campaigners say the cost – at over CHF 5bn – is too much and the project goes against plans to cut the country’s carbon emissions.
As it’s a referendum, only 50,000 signatures were needed – but 100,000 have been submitted with a week to go until the deadline.
Parliament had given to go ahead at the end of last year.
Govt ready to step in on train staff attacks
Police have to disclose nationality of offenders
Valais bar association says no new fire laws are needed
Major Swiss firm to cut jobs
Post your ballots on time
This winter was significantly warmer than average
