During the next six weeks, ground surveys will be necessary on autobahn A7 between the Hamburg/Schleswig-Holstein border (exit Schnelsen Nord) and the motorway junction Hamburg-Nordwest. The surveys will start on January 14, 2013 and will last approximately six weeks, depending on weather conditions.
The works are necessary to prepare the planned expansion of A7 to six lanes.
Lanes will have to be closed temporarily. To reduce traffic obstruction to a minimum, the surveys will be realised at night from 20:00 to 5:00 in the morning. Nevertheless, you should expect traffic delays and plan your time accordingly.
Source: Behörde für Wirtschaft, Verkehr und Innovation Hamburg