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The surveys revealed that high-mast lighting was by far the preferred method of lighting. [3] By 1967, Europe was known to have high-mast illumination technology in practice. 1968 saw the first permanent US installations of high-mast illumination starting in Auburn, Washington south of Seattle. The first American towers were 100 ft (30 m) tall ...
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A light tower In front of City Hall, Detroit, Michigan, about 1900. Detroit, Michigan, had a particularly extensive system of light towers, inaugurated in 1882. [6] 122 towers, 175 feet (53 m) tall and 1,000–1,200 feet (300–370 m) apart in downtown Detroit, were shorter, less powerful, and twice as far apart as typically found elsewhere. [7]
The city also replaced the province's late 1960s-era truss light poles with shaded high mast lighting (similar to the lighting on the Don Valley Parkway) west of Kipling Avenue and east of Royal York Road, [62] while a rehabilitation project for the railway underpass east of Park Lawn Avenue took place from 2014-15.
Highway lighting can have a negative influence on those living close to the freeway. High-mast lighting is an alternative as it concentrates the light on the road, but the tall structures can also lead to a NIMBY effect. Seen here is Ontario Highway 401 through suburban Toronto. Tunnel on the A1 motorway in Greece
Originally designed to view clouds by moonlight, the OLS is also used to map the locations of permanent lights on the Earth’s surface. The brightest areas of the Earth are the most urbanized, but not necessarily the most populated. (Compare western Europe with China and India.) Cities tend to grow along coastlines and transportation networks.
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Light mast without lamps Light mast at stadium. Light mast is a tall lighting specified [clarification needed] mast, which has several big searchlights on top of it. Light masts illuminates large areas and are possible to move, which is why they are used (for example) as farming, construction and emergency works implement.