The Frejus tunnel between France and Italy re-opens today, two months after a fire which killed two people.
Cars, motorbikes and small vans can use the Alpine tunnel normally but heavy goods vehicles are limited to travelling in one direction only, alternating each hour, until August 23.
In an effort to make sure any future blaze is dealt with as quickly as possible, firefighters will patrol the tunnel 24 hours a day. The number of shelters is being increased from 11 to 34, although this will take years to complete.
Nonetheless it is a welcome development for lorry drivers, who have had to use the Mont Blanc tunnel further north for the past two months. It is also good news for residents of the Chamonix valley who have seen HGV traffic triple since the Frejus closure.
Repairing the damage cost around 10 million euros, even though it was not as extensive as first thought.