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. 2012 May 15;11:15. doi: 10.1186/1476-072X-11-15

Table 6.

Comparison of underserved areas and LAAs identified with speed limits assigned to roads (% change reflects change compared to initial travel speed settings)

Underserved areas Raster % Change Network % Change
Area (km2)
37,945
-28
31,815
-21
Number of unique areas
61
-73
390
1
Number of zip codes
238
-42
255
-19
Total population (zip code)
856,150
-62
1,000,612
-22
Limited access areas
Raster
% Change
Network
% Change
Area (km2)
35,404
-28
19,343
-44
Number of unique areas
6
-60
3
-50
Number of zip codes
194
-41
117
-41
Total population (zip code) 694,562 -62 333,290 -49