Using google street view for systematic observation of the built environment: analysis of spatio-temporal instability of imagery dates

Table 3 Imagery date disruptions and extent of continuity in each study area

Study area	Study area size (km²)	Roads in study area (m)	Number of intersections	Number of disruptions	Extent of continuity (m)
Lower Ninth Ward, New Orleans, Louisiana	2.77	51951.53	1189	135	3.71-1928.13
(Hurricane Katrina, August 29, 2005)
Tuscaloosa, Alabama	15.03	50857.19	1468	130	3.13-1494.97
(EF5 tornado, April 27, 2011)	15.03	50857.19	1468	130	3.13-1494.97
Joplin, Missouri	11.20	99121.25	1572	35	4.85-3373.06
(EF5 tornado, May 22, 2011)	11.20	99121.25	1572	35	4.85-3373.06
Mountain Shadows, Colorado Springs, Colorado	5.30	48543.74	653	30	7.55-2720.24
(Waldo Canyon Wildfire, June 23, 2012)	5.30	48543.74	653	30	7.55-2720.24
Rancho Bernardo, San Diego County, California	4.85	31117.95	403	20	17.37-2297.56
(Witch Wildfire, October 21, 2007)	4.85	31117.95	403	20	17.37-2297.56

ISSN: 1476-072X