The test is called skid pan training, known as halkbana in Sweden, which is a mandatory slippery-road control exam that drivers must pass to secure a license. If drivers fail this test in Sweden, they will not get a license. During the exam, drivers must navigate specially treated tracks coated in water or oil to simulate real-world conditions like black ice and heavy snow packs. The training also teaches drivers exactly how speed, vehicle weight, and braking distance change when driving on zero-traction surfaces. The test is called skid pan training, known as halkbana in Sweden, which is a mandatory slippery-road control exam that drivers must pass to secure a license.