In Switzerland, names of towns are used for navigation on the roads, rather than highway numbers. Signs show the names of the major cities, road numbers are rarely seen. Signs on or for highways use white letters on green background. Signs for major roads use white letters on blue background, signs for local roads use black letters on white background. Highways in Switzerland are often congested, particularly in summertime.
Weekends are especially bad.
Cars may build up for as long as 20 km and it needs a lot of patience to get to the other side of the Alps. An alternative is to use the San Bernardino pass but congestions are there very likely too. In order to use the highways in Switzerland, a toll has to be paid. It costs CHF 50.00 and is available at the customs at the borders and at all gas stations and post offices throughout the country. The sticker must be fixed to the windshield on cars and trucks, there are particular rules for where it has to be placed on motorbikes.