currently, standard speed limits are:
50 (city)
100 (freeways, two-way-traffic)
130 (highways, one-way-traffic)
those limits are always valid, signs would tell you if other speed limits apply.
in smaller streets in towns and cities, more and more "30 zones" are installed.
Interstates and other main roads of the like which have the highest posted speed limits.
Absolutely. Speed cameras act as a deterrent to most motorists. Speed limits are there for a reason - to keep everyone safe while using the roads. Anyone exceeding the speed limit should expect to be punished for it !
Speed limits in the 1920s varied greatly depending on date and region. At the start of the decade, most roads were still unpaved and two wheel brake systems kept speed limits low, about 10 to 20 miles per hour in towns and built up residential areas. On the open road, speed limits averaged 20 to 30 miles per hour. By 1930, however, roads had improved significantly and automobiles were becoming more sophisticated. Typical speed limits in 1930 were 20 to 35 mph in cities and towns and 40 to 50 on the new concrete highways.
In Ohio, the speed limit on most roads is 55 mph, unless otherwise posted. In urban areas, the speed limit is typically 25-35 mph. On highways, the speed limit is usually 65-70 mph. Drivers must adhere to these speed limits to avoid fines and ensure safety on the roads.
120 Km/hr on Autobahnen / Autoroutes (Motorways). Sometimes less, where marked. 80 Km/hr on rural roads. 50 Km/hr in urban areas. Often 30 Km/hr on side roads in urban areas.
not at all, Germany's autobahn and Italy's autostrada are fairly safe. The roads are designed slightly diffrent for the high speed driving allowed on these roads. The biggest reason speed limis are kept lower in areas is the roads are designed for a slower speed, fuel economy reasons and don't let the lawmakers fool you. Lower speed limits lead to a majority of the income generated by the law enforcement agencies. Also for the most part the cars that speed along the autobahn and the autostrada are built and designed for higher speeds. That means better crash protection, and a different drivetrain and suspension system.
In most countries, on most roads, there is no specified minimum speed.
In Great Britain, the national speed limit which is in place unless otherwise signed is:70 miles per hour for dual carriageways and motorways60 miles per hour for single carriageways30 miles per hour for built up areasThere are different speed restrictions for goods vehicles, large vehicles and vehicles that are towing.
None, speed limits were set by the states conditional on road usage and reports by engineers as to the maximum safe limit of that roadway. Most roads in that time had no speed limit posted at all (believe it or not), the average of posted limits was 80 mph.
Most interstate highways were designed for the posted speed limits on those interstates.
Depends on who administers the road. If it's a private road, the speed limit will be whatever the owner of the road determines it to be. In most instances of gravel roads not being private roads, they'll typically be county roads, and the county will have the jurisdiction to determine the speed limit.
In Ohio, the speed limits vary depending on the type of road. For example, the speed limit on most highways is 65-70 mph, while in residential areas it is typically 25-35 mph. Speed limits are enforced by law enforcement officers who use radar guns, speed cameras, and other methods to monitor and ticket drivers who exceed the posted limits.