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  2. Electric gate - Wikipedia

    en.wikipedia.org/wiki/Electric_gate

    The cost of the hydraulic systems however meant that other companies started producing more affordable electromechanical alternatives. Hydraulic motors are the preferred choice on large and heavy gates as they can generate high levels of torque, electromechanical systems designed for lower usage domestic installations because they can be ...

  3. Automatic door - Wikipedia

    en.wikipedia.org/wiki/Automatic_door

    The invention was patented and installed in Wilcox's Pier Restaurant in West Haven, Connecticut for the benefit of waiters carrying plates of food and drink. The entire system plus installation was sold for $100. [3] [4] In 1954, Dee Horton and Lew Hewitt invented the first sliding automatic door. The automatic door used a mat actuator.

  4. Road surface marking - Wikipedia

    en.wikipedia.org/wiki/Road_surface_marking

    Shoulder lines on expressways and motorways are solid to imply the general absence of crossing traffic and residential driveways, as well as the disallowance of leaving the road on places other than specified exits. Expressways always have double centre lines. Exit and acceleration lanes are separated by 'block marking'.

  5. Bollard - Wikipedia

    en.wikipedia.org/wiki/Bollard

    A bollard is a sturdy, short, vertical post. The term originally referred to a post on a ship or quay used principally for mooring boats. In modern usage, it also refers to posts installed to control road traffic and posts designed to prevent automotive vehicles from colliding with pedestrians and structures.

  6. Automated parking system - Wikipedia

    en.wikipedia.org/wiki/Automated_parking_system

    Not included, for example, is the cost of land or the opportunity cost of the use of the land (i.e. the value of the additional space made available by the smaller size of the APS). As evidence of the complexities of comparing the costs for APS and multi-story parking garages, the same author presents an actual case study [21] as follows:

  7. Cable barrier - Wikipedia

    en.wikipedia.org/wiki/Cable_barrier

    Cable barriers provide a cost-effective solution to the shielding issue. The system is more forgiving than traditional concrete (Jersey) barriers or steel barriers used today and remains effective when installed on sloping terrain.

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