Labrat Revenge's Portland, Oregon: The Age of a City was i of the start interactive edifice historic catamenia maps. The map colors Portland buildings footprints yesteryear age. 544,033 buildings are displayed inwards total, resulting inwards a beautiful looking map that reveals to a greater extent than or less interesting facts close Portland's evolution over the years.
The Oregonian has directly taken essentially the same information to practice a map visualizing the buildings inwards the metropolis most inwards danger from earthquake damage.
In 1974 Oregon enacted its start statewide edifice code. In 1993 western Oregon adopted its start seismic standards. Franz Rad, a professor of civil & environmental engineering at Portland State University, argues that these dates furnish a "broad-brush expect at the vulnerability of buildings".
Portland buildings that predate 1974 are probable to endure the most vulnerable to seismic activity. Buildings erected later 1974 are ameliorate built, together with those built later 1993 are fifty-fifty better.
Earthquakes: How Vulnerable are Portland’s Buildings? takes the Portland edifice historic catamenia information together with colors the metropolis edifice footprints to present buildings constructed earlier 1974, those constructed betwixt 1974 & 1993 together with buildings erected later 1993. You tin plow over the sack thus purpose the map to assess the probable vulnerability of whatever Portland edifice during an earthquake.
