On September 3, 1967, all traffic in Sweden had to pull over and leave the roads empty!
People at Sweden used to drive on the left lane and wanted a change for a long time.
All Sweden’s neighbors drove on the right and many drivers owned left hand drive cars which led to many head on collisions in sparsely populated areas.
On September 3, a Sunday, only essential traffic was permitted on the roads after midnight. At 4:50 AM, all traffic stopped. Drivers had ten minutes to change lanes and at 5 AM traffic was free to move again, all now in the right lane.
Many workers tore the plastic covering off the new signs and traffic signals. In larger cities more hours were needed for the switch. Stockholm and Malmö streets were closed from 10 AM Saturday until 3 PM on Sunday.