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The maximum speed limit in American Samoa is 30 mph (48 km/h), with 15 mph (24 km/h) in residential areas. American Samoa American Samoa Highway 001 on Tutuila
The speed limit when towing a mobile home is 45 mph (72 km/h).
25 mph (40 km/h) in a residential district. 20 mph (32 km/h) in a business district. The Dalton Highway and parts of the Elliot Highway are 50 mph. Portions of the Elliott Highway and Steese Highway close to FairbanksĮngineering studies are needed to define which road segments to post a speed limit higher than 55 miles per hour (89 km/h).
Portions of the Parks Highway and Seward Highway designated "safety zones". However, several continue to carry the default 55 miles per hour (89 km/h) speed limit, including: Since the mid-1990s, Alaska's major highways have gradually been upgraded from 55 mph to 60 or 65 mph. The Minnesota Drive Expressway features a 60-mile-per-hour (97 km/h) speed limit, as does the Richardson Highway between Fairbanks and North Pole. Most of the Alaska Highway between the Canadian border and Delta Junction. The Seward Highway in Anchorage between 36th Avenue and Rabbit Creek Road, and other non-freeway parts of the Seward Highway south of Bird Point. On the Glenn Highway, the 35-mile (56 km) freeway between Wasilla and Anchorage, and most of the 100 miles (160 km) west of Glennallen. Most of the Richardson Highway between Valdez and North Pole. A majority of the Parks Highway between Fairbanks and Willow (excepting slower zones through Nenana, Denali Park, Cantwell, and Healy). In Alaska, many of the major highways carry a 65-mile-per-hour (105 km/h) speed limit, including: Trucks carrying hazardous materials are not to exceed 55 miles per hour (89 km/h). 70 mph (113 km/h) on Interstate Highways. 55 mph (89 km/h) on other two-lane roads. 45 mph (72 km/h) on rural paved county roads.
If the speed limit is not otherwise posted, it is: Drivers must also not drive so slowly that they impede the flow of traffic. In Alabama, it is illegal to drive at a speed that is not "reasonable and prudent" for the current conditions and hazards.