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  2. Expansion joint - Wikipedia

    en.wikipedia.org/wiki/Expansion_joint

    A expansion joint, or movement joint, is an assembly designed to hold parts together while safely absorbing temperature-induced expansion and contraction of building materials. They are commonly found between sections of buildings , bridges , sidewalks , railway tracks , piping systems , ships , and other structures.

  3. Highway engineering - Wikipedia

    en.wikipedia.org/wiki/Highway_engineering

    Highway engineering (also known as roadway engineering and street engineering) is a professional engineering discipline branching from the civil engineering subdiscipline of transportation engineering that involves the planning, design, construction, operation, and maintenance of roads, highways, streets, bridges, and tunnels to ensure safe and effective transportation of people and goods.

  4. Geometric design of roads - Wikipedia

    en.wikipedia.org/wiki/Geometric_design_of_roads

    The alignment is the route of the road, defined as a series of horizontal tangents and curves. The profile is the vertical aspect of the road, including crest and sag curves, and the straight grade lines connecting them. The cross section shows the position and number of vehicle and bicycle lanes and sidewalks, along with their cross slope or ...

  5. Dowel bar retrofit - Wikipedia

    en.wikipedia.org/wiki/Dowel_bar_retrofit

    The expansion caps belong at each end of the dowel bar and the dowel bar support chairs are used to firmly hold the dowels centered in the slots during backfill operations. The foam core insert is used to re-establish the joint or crack, which allows the bar within each side of the slot to expand and contract.

  6. Sidewalk - Wikipedia

    en.wikipedia.org/wiki/Sidewalk

    The sidewalk is separated from the main street by six bollards in front of the building. Raised wooden sidewalk by a dirt road, Staten Island, N.Y., early 20th century. Sidewalks have operated for at least 4,000 years. [12] The Greek city of Corinth had sidewalks by the 4th-century BC, and the Romans built sidewalks – they called them ...

  7. New state law allows walking on roads when sidewalks are ...

    www.aol.com/state-law-allows-walking-roads...

    The law restricting pedestrians from walking on roads has been revised to let pedestrians use roadways in certain situations. New state law allows walking on roads when sidewalks are blocked or unsafe

  8. Can you park your car and block a sidewalk in Pennsylvania ...

    www.aol.com/news/park-car-block-sidewalk...

    State College offers local ordinances prohibiting parking on sidewalks or between “the paved portion of a highway, whether curbed or not, and the sidewalk.” Staying safe on Pennsylvania’s roads

  9. Road surface - Wikipedia

    en.wikipedia.org/wiki/Road_surface

    A road of such material is called a "metalled road" in Britain, a "paved road" in Canada and the US, or a "sealed road" in parts of Canada, Australia and New Zealand. [ 48 ] A granular surface can be used with a traffic volume where the annual average daily traffic is 1,200 vehicles per day or less.

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