Bundesstraße
One distinguishing characteristic between German "Bundesstraßen" and "Autobahnen" is that there usually is a general 100 km/h (62 mph) speed limit on federal highways out of built-up areas, as opposed to the merely advisory speed limit ("Richtgeschwindigkeit") of 130 km/h (83 mph) in unmarked sections of the autobahns. However, a number of "Bundesstraßen" have been extended as expressways (dual carriageways) (colloquially called "Yellow Autobahns"). Many of these have speed limits of usually 100–120 km/h, others have only an advisory speed limit like autobahns. Most sections of the federal highways are only single carriageway with one lane for each direction and no hard shoulder pull-out area.
Speed limits in the United States by jurisdiction
The default speed limit on a rural 2-lane highway in Washington is 60; however, the limit on undivided highways varies. In mountainous country like the Cascades and Olympic Mountains, certain twisty roads are limited to 55 mph, whereas some flat, straight highways in eastern Washington have a limit of 65. The speed limit for motorhomes and autos with trailers is 60 like it is for trucks. Roads with traffic lights are limited to 55 mph. The school zone speed limit is 20 mph but is in effect only if children are present. Divided highways in Washington are rare, however, U.S. Route 395 between Pasco and Ritzville is a high-speed divided highway with a maximum speed limit of 70 mph.