Dreieck Karlsruhe

Half-stack interchange in Germany

Road junction

Dreieck Karlsruhe

Autobahndreieck Karlsruhe, AD Karlsruhe
Location
Karlsruhe, Germany
Coordinates| 48°58′23.25″N 8°26′11.05″E﻿ / ﻿48.9731250°N 8.4364028°E﻿ / 48.9731250; 8.4364028

* A 8
* A 5

Construction
Type| Half-stack interchange
Lanes| 2x3/2x3
Opened| 1938 (Last rebuilt 2011)

The Dreieck Karlsruhe (German: Autobahndreieck Karlsruhe, abbreviated AD Karlsruhe) is a half-stack interchange in the German state of Baden-Württemberg.

The motorway interchange terminates the section of A8 coming from Munich to the east, by connecting with A5. A5 travels from the north at Hattenbacher Dreieck to the south at the Swiss border near Basel.[1]

## Geography

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The motorway interchange is within the city limits of Karlsruhe. Nearby towns are Waldbronn and Ettlingen. The interchange lies 5 km southeast of the city centre of Karlsruhe.

Dreieck Karlsruhe (2011)

## History

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### Before the Second World War

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The motorway interchange was built together with the A8 to connect to Salzburg. The connection had to be ready before the Second World War. Construction began in 1936 and opened to traffic in 1938.

### Karlsruher Dreiecksrennen

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Between 1946 and 1951 they held motor races at the interchange, called the Karlsruher Dreiecksrennen.[2]

### Reconstruction 2011

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The bridgespan in the connection Stuttgart–Basel over the A 5 was newly built between August 2011 and the beginning of 2013. The old connecting bridge was torn down because of its sorry state. The new bridge was built next to the old one with an altered radius. The new connection now has two lanes instead of one.[3][4]

## Road layout near the interchange

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Near the motorway interchange the A 5 as well as the A 8 have a 1x3 layout. All connections in the interchange have two lanes.

The interchange is built as a half-stack interchange.

## Traffic near the interchange

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Approximately 206,000 vehicles use the interchange on a daily basis, which makes it the most-used motorway interchange in Baden-Württemberg.

From | To | Average daily traffic | Percentage of heavy traffic

[5]

|
|
|

AS Karlsruhe-Mitte (A 5) | AD Karlsruhe | 140,100 | 14.3%
AD Karlsruhe | AS Ettlingen (A 5) | 84,800 | 14.5%
AD Karlsruhe | AS Karlsbad (A 8) | 84,800 | 13.6%

## References

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1. ^ "AD Karlsruhe". Autobahnkreuze & Autobahndreiecke in Deutschland. 2011. Archived from the original on 2013-02-10. Retrieved 2012-11-24.[self-published source]
2. ^ "Blick in die Geschichte Nr. 79 vom 27. Juni 2008: Das Karlsruher Dreiecksrennen 1946 (Look at the history No. 79 of 27 June 2008:. The Karlsruhe Triangle Race 1946)". karlsruhe.de. Retrieved 2016-02-15. "(Google translate) The first race... The Karlsruher press reports...only a few words about this unique event. In the sparsely appearing contemporary reports of the time the wrong message is repeatedly cited that the 'Karlsruher Dreieck race had to be canceled at the last minute from fuel shortages.' "
3. ^ "Nadelöhr am Autobahnkreuz Karlsruhe: Bau neuer Brücke führt zu Staus". ka-news.de. 29 July 2011. Retrieved 2012-11-24.
4. ^ Regierungspräsidium Karlsruhe: Autobahndreieck Karlsruhe: Neubau der Brücke über die A 5 weitestgehend abgeschlossen – Abriss der alten Brücke, retrieved 14 October 2013.
5. ^ "Manuelle Verkehrszählung BAB 2010". BASt Statistik. 2010. Retrieved 2012-10-28. (PDF-Datei; 336 kB).

## External links

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Wikimedia Commons has media related to Autobahndreieck Karlsruhe.