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  2. Variations in traffic light operation - Wikipedia

    en.wikipedia.org/wiki/Variations_in_traffic...

    Variations on the protected/permissive traffic signals in the United States; (1) is the "classic" doghouse five-light signal introduced in 1971; (2) and (3) incorporate flashing yellow arrows In the US, a flashing yellow arrow is a signal phasing configuration for permissive left turns.

  3. Traffic light - Wikipedia

    en.wikipedia.org/wiki/Traffic_light

    When the light counts to "0" (or 1), the main light color immediately changes. Countdown lights may have zeros in the tens or none, some countdown lights may flash when getting ready to zero. Yellow lights can also have countdown lights, but most lights do not. Usually the countdown light has 2 digits, in case the time of the main light ...

  4. Roundabout - Wikipedia

    en.wikipedia.org/wiki/Roundabout

    [3] [26] This roundabout occasioned dismay from residents, and a local news program said about it, "Even police agree, [roundabouts] can be confusing at times." [27] Between 1990 and 1995, numerous modern roundabouts were built in California, Colorado, Florida, Maryland, Nevada, and Vermont. [3] Roundabout built in 2023 in Holmen, Wisconsin

  5. Wondering how to drive a roundabout? Here's what to do - AOL

    www.aol.com/news/wondering-drive-roundabout...

    News. Science & Tech

  6. Right-in/right-out - Wikipedia

    en.wikipedia.org/wiki/Right-in/right-out

    [1] [2] [3] RIRO is typical when vehicles drive on the right, and LILO is usual where vehicles drive on the left. This is because minor roads usually connect to the outsides of two-way roads . However, on a divided highway , both RIRO and LILO intersections can occur.

  7. Roundabout interchange - Wikipedia

    en.wikipedia.org/wiki/Roundabout_interchange

    The three-level stacked roundabout is a variation on the roundabout interchange in which both roads are grade-separated. It is similar to the three-level diamond interchange except that the small square of that latter interchange is enlarged to a true roundabout. If the roundabout is sufficiently large, the interchange may require only two ...

  8. Calder Highway - Wikipedia

    en.wikipedia.org/wiki/Calder_Highway

    Calder Highway is a rural highway in Australia, linking Mildura and the Victoria/New South Wales border to Bendigo, in North Central Victoria.South of Bendigo, where the former highway has been upgraded to freeway-standard, Calder Freeway links to Melbourne, subsuming former alignments of Calder Highway; the Victorian Government completed the conversion to freeway standard from Melbourne to ...

  9. Road signs in Australia - Wikipedia

    en.wikipedia.org/wiki/Road_signs_in_Australia

    Australia closely follows the United States when it comes to road sign ... (3 people or more (1 driver, 2 passengers)) (R7-V7) Transit Lane ... (W7-2) Number of ...