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Outdoor Lighting and Crime - Amper

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FIGURE 13. CRIME AND UPWARD LIGHT ENERGY LOSS IN UK<br />

CITIES<br />

CRIME RATE %<br />

16<br />

14<br />

12<br />

10<br />

8<br />

6<br />

4<br />

2<br />

0<br />

y = 1.0323x - 1.2761<br />

r 2 = 0.5816<br />

0 2 4 6 8 10<br />

ANNUAL LIGHT ENERGY LOSS / AREA, MW.h/km 2<br />

Figure 13. <strong>Crime</strong> rate in 2000 for 12 UK cities, plotted against annual upward light energy<br />

loss measured by satellite in 1997 (Isobe <strong>and</strong> Hamamura 1998). The English crime rates for<br />

2000 are based on 1991 census data (Povey <strong>and</strong> Cotton 2000, Povey et al. 2001). Details are<br />

given in Table 8. The three crossed data points are for cities in Scotl<strong>and</strong>, with 2001 crime<br />

rates based on 2000 population data (Scottish Executive 2002). They are not included in the<br />

regression analysis. The slope of the regression line for the nine English cities is reliably<br />

different from zero (p < 0.05).<br />

180<br />

12

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