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  2. Level crossing signals - Wikipedia

    en.wikipedia.org/wiki/Level_crossing_signals

    Level crossing signals. Level crossing signals are the electronic warning devices for road vehicles at railroad level crossings. Level crossings can be operated in various ways. In some countries such as the UK, the warning devices are more often than not activated by remote control, I.e. an operator pressing buttons.

  3. North American railroad signals - Wikipedia

    en.wikipedia.org/.../North_American_railroad_signals

    There are two main types of signaling aspect systems found in North America, speed signaling and weak route signaling. [citation needed] Speed signaling transmits information regarding how fast the train is permitted to be going in the upcoming segment of track; weak route signaling transmits information related to the route a train will be taking through a junction, and it is incumbent upon ...

  4. Crossbuck - Wikipedia

    en.wikipedia.org/wiki/Crossbuck

    The Vienna Convention on Road Signs and Signals, a multilateral treaty of the United Nations with the intention of standardizing traffic signs around the world, prescribes several different regulations for the "crossbuck" sign. The sign should consist of two arms not less than 1.2 metres (3.9 ft) long, crossed in the form of an . The first ...

  5. Level crossing - Wikipedia

    en.wikipedia.org/wiki/Level_crossing

    A level crossing is an intersection where a railway line crosses a road, path, or (in rare situations) airport runway, at the same level, [1] as opposed to the railway line crossing over or under using an overpass or tunnel. The term also applies when a light rail line with separate right-of-way or reserved track crosses a road in the same fashion.

  6. North American railroad signaling - Wikipedia

    en.wikipedia.org/wiki/North_American_railroad...

    North American railroad signaling. Standards for North American railroad signaling in the United States are issued by the Association of American Railroads (AAR), which is a trade association of the railroads of Canada, the US, and Mexico. Their system is loosely based on practices developed in the United Kingdom during the early years of ...

  7. Wigwag (railroad) - Wikipedia

    en.wikipedia.org/wiki/Wigwag_(railroad)

    A Magnetic flagman wigwag signal in use in southern Oregon, June 2007. Wigwag is a nickname for a type of railroad grade crossing signal once common in North America, referring to its pendulum -like motion that signaled a train's approach. The device is generally credited to Albert Hunt, a mechanical engineer at Southern California 's Pacific ...

  8. Rail speed limits in the United States - Wikipedia

    en.wikipedia.org/wiki/Rail_speed_limits_in_the...

    A 45-mile-per-hour (72 km/h) speed restriction sign at Metro-North Railroad 's Port Chester station. Rail speed limits in the United States are regulated by the Federal Railroad Administration. Railroads also implement their own limits and enforce speed limits. Speed restrictions are based on a number of factors including curvature, signaling ...

  9. An update on I-10 bridge, greenway concerns, railroad ... - AOL

    www.aol.com/10-bridge-greenway-concerns-railroad...

    Q. Jeannie reports two known railroad crossings in need of immediate repair. West Tharpe Street at Mission Road and Fred George Road east of Woodbriar Lane. They are both in really bad shape and ...