Road I / 4 - SLM HG 4/4
|Silnice I / 4 in the Czech Republic|
|Operator:||Directorate of Roads and Motorways of the Czech Republic|
|Overall length:||113 km|
|of which in operation:||113 km|
Country ( Region ):
|The road near Milín (2007)|
The Silnice I / 4 ( Czech for "1st class road") is a Czech state road (1st class road) that leads from Prague in a south-westerly direction to the German border. As far as Příbram it was developed as an expressway, which has been classified as the Dálnice 4 motorway since the beginning of 2016 .
The road begins with four lanes on the Prague city ring (Městský okruh). It leads out of the city of Prague in a south-westerly direction, crosses the Dálnice 0 motorway ring behind the Lahovice cadastral municipality , continues through Černošice to Jíloviště (Julowischt), where it leads to Dálnice 4 at junction 10 ( exit ) transforms. The motorway-like section ends at kilometer 45. The Silnice I / 4, which now continues again, becomes a motorway again at junction 49, takes up the Silnice I / 66 coming from Příbram at Milín , and becomes part of the at junction 63Crossed Silnice I / 19 and at the intersection with Silnice I / 20 again turns into Silnice I / 4. It crosses in Strakonice (Strakonitz) the Silnice I / 22 and continues over Volyně (Wolin) to Vimperk (winter mountain) and then traverses the Bohemia . The Silnice I / 39 branches off to the southeast, and the road reaches behind Strážný the Czech-German border, they at themselves as national highway 12 towards Passau continues.
The length of the road, including the motorway sections, is around 164 kilometers, without these 113 kilometers. 
From 1940 to 1945 the street formed part of Reichsstraße 12 .
- Freytag & Berndt Autoatlas Czech Republic, Ausgabe 2010, ISBN 978-80-7316-056-2