The New Morrison Street Bridge, Portland, Oregon
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منابع مشابه
Epoxy Asphalt Concrete (EAC) Used to Repave the Fremont Bridge in Portland Oregon
The Fremont Bridge is steel tied arch bridge over the Willamette River in Portland, Oregon. It carries traffic on Interstate 405 and US Highway 30 between downtown and north Portland. . The bridge was constructed in 1973, and the paving on the original steel deck consisted of epoxy asphalt concrete followed by an asphalt concrete overlay. The pavement performed for nearly 40 years before it nee...
متن کاملGrowth Management and Housing Prices: the Case of Portland, Oregon
Portland, Oregon, is well known for its relatively unique urban growth boundary (UGB), a very tight form of zoning designed to control sprawl. The UGB has recently been criticized for raising housing prices. From a theoretical perspective, the UGB will put upward pressure on land and thus housing prices, but the magnitude of this effect is uncertain. Increasing density should substitute for hig...
متن کاملThe Effect of Trees on Crime in Portland, Oregon
The authors estimate the relationship between trees and three crime aggre gates (all crime, violent crime, and property crime) and two individual crimes (burglary and vandalism) in Portland, Oregon. During the study period (20052007), 431 crimes were reported at the 2,813 singlefamily homes in our sample. In general, the authors find that trees in the public right of way are associated with ...
متن کاملCosts and benefits of bicycling investments in Portland, Oregon.
BACKGROUND Promoting bicycling has great potential to increase overall physical activity; however, significant uncertainty exists with regard to the amount and effectiveness of investment needed for infrastructure. The objective of this study is to assess how costs of Portland's past and planned investments in bicycling relate to health and other benefits. METHODS Costs of investment plans ar...
متن کاملAssessing automobile head restraint positioning in Portland, Oregon.
OBJECTIVE Automobile head restraints, when used properly, have been shown to decrease the incidence and severity of whiplash injuries to the neck. Before the development of a public campaign on proper head restraint positioning, the authors assessed head restraint positioning and public understanding. DESIGN Over a one month period, the position of the vehicle head restraint of drivers was ob...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1906
ISSN: 0036-8733
DOI: 10.1038/scientificamerican09221906-25677supp