It sounds as if you are thinking of the Autobahnen.
The Autobahn
An autobahn is a high-speed intercity highway, as present in Germany.
Depends which state you're in. Texas has the highest Interstate speed limits, with some sections being allowed up to 80 MPH.
Yes Germany does have speed limits but on a lot of motorways they dont :)
not everywhere, but by default there is just a recommended speed (~80mph).
10
The Autobahn
Well you see considering that highway workers work on the highway and if the speed limit was raised, then there's more of a possibility of a car "flying" down the highway and hitting the highway worker
It sets the speed at which Highway Safety Engineers determine can be driven safely on that stretch of roadway.
Texas
Germany has the Autobahn there is no speed limit on the Autobahn. It is Germany's version of a freeway.
70
on highways there are no limits... rest of the roads follow standart EU speed limits Germany has no Universal Motorway Speed Limit, but on such roads, as well as motorways, a recommended speed limit of 130 km/h (80 mph) applies.On an open radd, the spee limit is about 100km/h. In a town 50km/h.