A1 motorway (Switzerland)
Template: Infobox trunk road / Maintenance / CH -A
Canton:
- Canton of Geneva Geneva
- Vaud Canton of Vaud
- Canton of Fribourg Fribourg
- Canton of Bern Berne
- Canton of Solothurn Solothurn
- Canton of Aargau Aargau
- Canton of Zurich Zurich
- Canton of Thurgau Thurgau
- Canton of St. Gallen St. Gallen
- In construction
- In planning
The Highway 1, referred to 1996 as N1, Switzerland traverses in an east-west direction and accounts for about one -fifth of the Swiss national road network from. It connects the south west of Geneva with St. Gallen in the northeast and ends in St.Margrethen on the Austrian border, and is now run continuously as separately for each direction highway with at least two lanes and emergency lanes per direction of travel.
The A1 is largely congruent with the National Highway 1 - exceptions are the regions Zurich ( N35/N36 ) and Geneva ( N31 ).
History
Already in 1956, submitted by the Automobile Club of Switzerland People's initiative to improve the road network proposed the construction of a highway in front on the west - east connection.
On 10 May 1962, the gray wood motorway was inaugurated as the first section of the N1. The eight- kilometer section serves to relieve the road through Zollikofen.
In 1963 a first longer piece of highway, the section of the Geneva-Lausanne N1. On 10 May 1967, he created with the completion of the section Oensingen - Hunzenschwil between Bern- Lenzburg a 85 km long section of the N1. It was then Switzerland, the longest continuous highway.
The northern bypass opened in 1985 Zurich linking the highway west and east parts of the city of Zurich. An earlier project, the Zurich Express road Y, the N1 would have led by Zurich in the middle, but was denied by the strong political resistance from the people. For this reason, the traffic was tormented for years about the temporary connection Hardbrucke - Rosengartenstrasse before the northern bypass was opened.
1995 is the longest traffic jam on the N1 after several accidents in holiday traffic pile up the vehicles between Bern and Niderbipp to 53 kilometers.
2001, the last section of the A1 was opened, the section between Murten and Yverdon.
Feeder road
The feeder road (A1a, A1H A1L and A1.1) are usually run itself as a trend- separated motorway and are usually also part of the national road network.
Region Zurich
In the Zurich region of the traffic on the A1 is particularly dense, make it regularly jams. In order to prevent the total collapse in commuter traffic around Zurich and particularly in Zurich -Nord, the motorists at peak times - contrary to all other prevailing regulations - held tightly catch up, bringing the capacity of the already overburdened A1 can be better utilized. Since the traffic is constantly increasing, it is considered whether the hard shoulder to be used as the fourth track on sections.
Infamous was formerly the Baregg tunnel, which is located on the section that is shared by the highways 1 and 3 ( Birrfeld - Limmattalerkreuz cross). The highway has three lanes in this section plus an emergency lane in each direction, the two old tunnels, however, were designed only ever two lanes (without hard shoulder ). With the construction of a third three-lane tunnel for the direction of Bern and the two old tunnels, which now manage both the traffic in the direction of Zurich, this bottleneck could be eliminated. This the jam, however, shifted to the Gubristtunnel, which suffers from the same problem. The Gubrist was built as part of the Northern Bypass Zurich ( N1c/N20 ) and run only two lanes, but must today the traffic of highways 1 and 4 deal with. Currently going through the configuration work to realize a third three-lane tube here.