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Nicolson pavement, alternatively spelled "Nicholson" and denominated wooden block pavement and wood block pavement, is a road surface material consisting of wooden blocks. Samuel Nicolson invented it in the mid-19th century. [1] Wooden block pavement has since become unfavored because of its poor surface quality and high cost of maintenance.
The alley is 530 feet (160 m) long and composed of wooden blocks roughly 6 to 10 inches (150 to 250 mm) long and 4 inches (100 mm) wide. This wood block technique is a derivative of Nicholson paving, a more durable method of wooden paving which replaced plank paving in many U.S. cities in the nineteenth century.
A sett, also known as a block or Belgian block, [1] is a broadly rectangular quarried stone used in paving roads and walkways. [ 2 ] [ 3 ] Formerly in widespread use, particularly on steeper streets because setts provided horses' hooves with better grip than a smooth surface, they are now encountered more usually as decorative stone paving in ...
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A type of the Lot and Block system is frequently used for tax identification purposes in the United States. This designation, often called a Tax Identification Number or Tax Parcel Number, is not directly based on the legal description of the property. The system can be used even if the property is not legally described by the Block and Lot system.
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The tread depth of a step is measured from the edge of the nosing to the vertical riser; if the steps have no nosing, it is the same as the going; otherwise it is the going plus the extent of one nosing. The going of a step is measured from the edge of the nosing to the edge of nosing in plan view. A person using the stairs would move this ...
Typical steps in the South Side Pittsburgh "orphan" house with stairs-only access. Pittsburgh has nearly 800 sets of city-owned steps. Many steps parallel existing roads, but others exist on their own and are classified as city streets and are commonly referred to as "paper streets". Nearly two-thirds of the steps are in low or moderate-income ...