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  2. Raised pavement marker - Wikipedia

    en.wikipedia.org/wiki/Raised_pavement_marker

    Delineators are tall pylons (similar to traffic cones or bollards) mounted on the road surface, or along the edge of a road, and are used to channelize traffic. These are a form of raised pavement marker but unlike most such markers, delineators are not supposed to be hit except by out-of-control or drifting vehicles.

  3. Jersey barrier - Wikipedia

    en.wikipedia.org/wiki/Jersey_barrier

    Jersey barriers on the road. A Jersey barrier, Jersey wall, or Jersey bump is a modular concrete or plastic barrier employed to separate lanes of traffic.It is designed to minimize vehicle damage in cases of incidental contact while still preventing vehicle crossovers resulting in a likely head-on collision.

  4. Traffic cone - Wikipedia

    en.wikipedia.org/wiki/Traffic_cone

    In many countries such as Australia and in some American states such as California, traffic barrels are rarely seen; pillar-shaped moveable bollards are instead used where larger and sturdier warning or delineation devices are needed. Typically, bollards are 1,150 mm (45 in) high fluorescent orange posts with reflective sleeve and heavyweight ...

  5. Safety barrier - Wikipedia

    en.wikipedia.org/wiki/Safety_barrier

    Hard barriers are fixed into the ground as a bollard or gate, removable on stands, or clipped to a structure. Regardless of the barrier type, the components and overall assembly will be similar. Regardless of the barrier type, the components and overall assembly will be similar.

  6. Bollard - Wikipedia

    en.wikipedia.org/wiki/Bollard

    Bollards may also be used to enclose car-free zones. Bollards and other street furniture can also be used to control overspill parking onto sidewalks and verges. [11] Bollards can be temporary and portable, such as this traffic control bollard separating the road from the worksite.

  7. Traffic calming - Wikipedia

    en.wikipedia.org/wiki/Traffic_calming

    Traffic engineers refer to three "E's" when discussing traffic calming: engineering, (community) education, and (police) enforcement.Because neighborhood traffic management studies have shown that residents often contribute to the perceived speeding problem within their neighborhoods, instructions on traffic calming (for example in Hass-Klau et al., 1992 [4]) stress that the most effective ...

  8. Elevated highway - Wikipedia

    en.wikipedia.org/wiki/Elevated_highway

    Engineering of paving, exit orientation, turn radius, drainage, curb height, ramp length, speed optimization, shoulders, maintenance procedures, noise abatement, and minimizing the "highway wall" effect that could divide communities, were all improved in the 1940s through 1970s, partially by examining the deficiencies of this early elevated ...

  9. Bicycle parking rack - Wikipedia

    en.wikipedia.org/wiki/Bicycle_parking_rack

    Bollard style: Post and ring: Bollards are short vertical posts most commonly used as traffic or parking barriers. Bollard style bike racks add one or two arms to which bikes may be secured. [5] Post-and-ring racks are a North American variant on the bollard type. Bollard-style rack in Seattle, Washington, United States

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