Speed limits in Germany
In 1973, in the wake of the 1973 oil crisis, a federal speed limit of 100 km/h (62 mph) on Autobahns was imposed to help conserve fuel for fear of impending future shortages (not for environmental or safety reasons). The measure only lasted from December 1973 to March 1974; while the administration and the Bundestag were in favor of keeping the speed limit, the Bundesrat pushed to repeal the law. As a compromise, a "recommended speed" was introduced on Autobahns and "highways outside of built-up areas with a center divide or without a center divide and a continuous lane for overtaking in both directions". This law is basically still in effect today. Unrestricted non-Autobahn highways, however, have since become virtually non-existent or replaced by "Schnellstraßen", Autobahn-like expressways typically limited to 120 or 130 km/h and normally only covering a few kilometers.
Bundesautobahn 7
The section through the Hamburg city is characterized by an immense volume of traffic, congestion is the order of the day here. There are several reasons for this: the motorway runs through inner-city areas, there is a lot of holiday traffic on the route during school holidays, there are practically no opportunities for bypassing, the speed is permanently limited to 80 km / h as an urban area and the section is extended, South of the equipped with four tubes to two lanes Elbe tunnel leads the A 7 on the highway Elbmarsch, the longest road bridge in Germany, right through the harbor area and the Harburg mountains to Lower Saxony. Via the corner junction A 261 you get to the A 1 to Bremen, at the following Maschener Kreuz on the A 39 to Lüneburg.