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
The highest speed limits are generally on the West Coast and the inland eastern states, in inland western states, along with Arkansas and Louisiana, and on the Eastern Seaboard. Alaska, Connecticut, Delaware, Massachusetts, New Jersey, New York, Puerto Rico, Rhode Island, and Vermont have a maximum limit of , and Hawaii has a maximum limit of . The District of Columbia and the U.S. Virgin Islands have a maximum speed limit of . Guam, the Northern Mariana Islands and American Samoa have speed limits of . Two territories in the U.S. Minor Outlying Islands have their own speed limits: in Wake Island, and in Midway Atoll. Unusual for any state east of the Mississippi River, much of I-95 in Maine north of Bangor allows up to , and the same is true for up to 600 miles of freeways in Michigan. Portions of the Idaho, Montana, Nevada, South Dakota, Texas, Utah, and Wyoming road networks have posted limits. The highest posted speed limit in the country is and can be found only on the Texas State Highway 130.