What are variable speed limits?

Some articles on speed, variable speed limits, limits, variable speed limit, variable, speeds:

Speed - Distance of Inter-city Rail
... Development of high-speed rail in some countries increases the share of railway for such longer-distance journeys ... In conventional non high-speed rail, overnight trains are common for this distance ... Faster high-speed rail of 350 km (217 mi), such as the proposed Beijing-Shanghai Express Railway in China (1,300 km/808 mi, or 5 hours) and Tokyo-Sappor ...
Tonya Harding - Automobile Racing Land Speed Record
... On August 12, 2009, Harding set a new land speed record for a vintage gas coupe with a speed of 97.177 mph driving a 1931 Ford Model A, named Lickity - Split, on the ...
Examples of Different Speeds
... Speed m/s ft/s km/h mph Notes Approximate rate of continental drift 0.00000001 0.00000003 0.00000004 0.00000002 4 cm/year ... Varies depending on location Speed of a common snail 0.001 0.003 0.004 0.002 1 millimeter per second ... Sprint runners 10 32.8 22 ... Average speed over 100 meters ...
Speed Limits In The United States - Jurisdictional Distinctions - Missouri - Variable Speed Limits
... Missouri concluded a two-year experiment with variable speed limits along I-270 around St ... as additional signs alerting drivers about the use of variable speed limits ... The limits will vary between 40 and 60 miles per hour, depending on traffic conditions, and could change by up to 5 mph every 5 minutes ...
Regulations - Variable Speed Limits
... In 1965, the first known experiments with variable speed limit signs took place on a 30 km stretch of German motorway A8 between Munich and the border ... Mechanically variable message signs could display speeds of 60, 80 and 100 km/h, "danger zone" or "accident" ... In the late 1960s, heavily-traveled portions of the New Jersey Turnpike began using variable speed limit signs, in combination with variable message signs ...

Famous quotes containing the words limits, variable and/or speed:

    Once and for all, there are many things I choose not to know.—Wisdom sets limits even to knowledge.
    Friedrich Nietzsche (1844–1900)

    Walked forth to ease my pain
    Along the shore of silver streaming Thames,
    Whose rutty bank, the which his river hems,
    Was painted all with variable flowers,
    Edmund Spenser (1552?–1599)

    If it be aught toward the general good,
    Set honor in one eye, and death i’th’ other,
    And I will look on both indifferently;
    For let the gods so speed me as I love
    The name of honor more than I fear death.
    William Shakespeare (1564–1616)