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2. Chain-link fencing - Wikipedia

   en.wikipedia.org/wiki/Chain-link_fencing

   Chain-link fencing showing the diamond patterning A chain-link fence bordering a residential property. A chain-link fence (also referred to as wire netting, wire-mesh fence, chain-wire fence, cyclone fence, hurricane fence, or diamond-mesh fence) is a type of woven fence usually made from galvanized or linear low-density polyethylene-coated steel wire.

3. Four-quadrant gate - Wikipedia

   en.wikipedia.org/wiki/Four-quadrant_gate

   A four-quadrant gate or full-barrier equipment is a type of boom barrier gate protecting a grade crossing. It has a gate mechanism on both sides of the tracks for both directions of automotive traffic. The exit gates blocking the road leading away from the tracks are equipped with a delay, and begin their descent to their horizontal position ...

4. Safetran - Wikipedia

   en.wikipedia.org/wiki/Safetran

   The city of Placentia, California implemented a Quiet Zone [12] utilizing Safetran Grade Crossing Predictors, Wayside Access Gateways, Spread Spectrum Radios, and Home/Distant Link hardware and software. Long Island Rail Road is implementing Safetran's Vital Interface Unit (VIUs) to implement Positive Train Control (PTC) along the two lines ...

5. craigslist - Wikipedia

   en.wikipedia.org/wiki/Craigslist

   This is an accepted version of this page This is the latest accepted revision, reviewed on 12 February 2025. There is 1 pending revision awaiting review. Classified advertisements website Craigslist Inc. Logo used since 1995 Screenshot of the main page on January 26, 2008 Type of business Private Type of site Classifieds, forums Available in English, French, German, Dutch, Spanish, Italian ...

6. Frank J. Mafera - Wikipedia

   en.wikipedia.org/wiki/Frank_J._Mafera

   In 1930, Mafera filed an application for a "method of forming wire fence fabric", which was approved in 1931. [1] Mafera's brother already owned a chain-link fence company in Medford, Massachusetts, [2] and Mafera's 1931 patent was one of the several advancements made by the Maferas in the development of chain-link fencing.

7. Level crossing signals - Wikipedia

   en.wikipedia.org/wiki/Level_crossing_signals

   At many crossings, there will be a barrier (or "gate" in the US) added to the signal, which descends over the road and blocks entry. The barriers will be fully lowered 15 to 20 seconds before the train arrives (US), and will rise and the signals will shut off once the end of the train clears the island circuit.