Outdoor Lighting and Crime - Amper

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FIGURE 10. CRIME SCORE AND UPWARD LIGHT ENERGY LOSS PER PERSON IN USA CITIES MORGAN QUITNO CRIME SCORE 350 300 250 200 150 100 50 0 -50 y = 1.9364x + 24.101 r 2 = 0.5645 0 20 40 60 80 100 120 140 160 ANNUAL LIGHT ENERGY LOSS PER PERSON, kW.h Figure 10. Morgan Quitno (2000) crime score for 21 of 315 USA cities, plotted against annual upward light energy loss per person. The crime score is based on 1998 UCR crime data weighted according to the threat assessed by survey. The mean crime score for the 315 cities is represented by the ordinate value 0. Light energy loss data are from Isobe and Hamamura (1998), with estimated corrections to no-snow conditions for Minnesota, St Louis, Kansas City MO, Buffalo and Denver. US cities population data used are from FBI (1998), with missing data from FightCrimeFortWayne (1999). Numerical data are in Tables 5 and 6. The regression line slope is reliably different from zero (p < 0.01). 177
FIGURE 11. CRIME RATE AND UPWARD LIGHT ENERGY LOSS IN CANADIAN CITIES CRIME RATE % 9 8 7 6 5 4 3 2 1 0 y = 0.0701x + 4.5826 r 2 = 0.3072 178 0 50 100 150 200 250 ANNUAL LIGHT ENERGY LOSS / AREA, MW.h/km 2 Figure 11. Crime rate in 1999 for nine cities in Canada, plotted against annual upward light energy loss per unit area measured by satellite in 1997. Light energy loss data are from Isobe and Hamamura (1998). Crime data for 1999 have been calculated from 2000 data from Statistics Canada (2001). Numerical data are given in Table 7. No corrections are made for snow cover. The unfilled data point is for Trois Rivières, which is excluded from the linear regression analysis as an outlier. The slope of the regression line is not significantly different from zero. Including Trois Rivières makes the regression line slope slightly negative, but again not reliably different from zero.
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OUTDOOR LIGHTING AND CRIME, PART 2:
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The new hypothesis suggests that pr
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ABBREVIATIONS, CONTRACTIONS AND GLO
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ns not significant NSW New South Wa
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4.2.2.1 A graphical approach.......
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9.12 SKYBEAMS AND LASER DISPLAYS...
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If there is some substance to the b
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2. GROWTH IN LIGHTING AND IN CRIME
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e at risk when community and enviro
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A decade of satellite measurements
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2000). Regardless, there are often
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Intent in two of the source documen
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Unlike the situation in England and
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proportional to the amount of outdo
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Zealand (Not shown in figures) Popu
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the crime is much less feared by mo
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“We are not aware of any school d
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The Auckland central business distr
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Italian regions and in Czechia will
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summer’s worst heat wave and in t
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For 1977-07-04: End of Civil Twilig
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which unreasonably disturbs the sle
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4. MAKING SENSE OF THE EVIDENCE 4.1
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much as 60 % of the emitted light a
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Marchant (2003) pointed out that th
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level will be linked to clock time
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Curve E is the simplest form of var
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night, plus the relative change ove
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• spatial extent also ranging fro
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Crime tends to increase as a reacti
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Causal Variable TABLE 2. Apparent S
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unreliable, and funding for further
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What would be helpful now would be
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5. THE HYPOTHESIS AND FURTHER EVIDE
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Isobe 2003) with the same observati
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TABLE 3. World Cities: Upward Light
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TDU = 0.15 S + 0.5 A + 0.1 V. The t
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necessary but not sufficient condit
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TABLE 6. Population, Crime and Upwa
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On the assumption that roads and pa
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eliably positive slope with data un
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5.2.3.7 Summary and discussion of r
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eflectance have changed the relativ
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Country TABLE 8. Crime Rate and Upw
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5.3 DISCUSSION OF THE CRIME AND LIG
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eventually in overall crime rates i
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objectionably large reduction, part
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no reason to suppose that ambient l
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oads were lit adequately for pedest
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Because of concern about the upward
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that major cross streets occur at i
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Overall, the tests indicate that dr
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TABLE 11. Drugs Crime and Light at
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6. ENVIRONMENTAL ASPECTS 6.1 ADVERS
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1999). Year-round summer-length dur
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yet ratified under the Kyoto Protoc
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One further problem needs to be rai
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Even with adequate notice it might
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markedly greater if there is substa
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at night, not only dim light but lo
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A Technical Report on the topic (IL
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ambient light. Commercial competiti
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with lighting for an aging populati
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If excessive lighting and lighting
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outdoor use of searchlights, skybea
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If funds are available for crime pr
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the first place now have to accept
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installation and usage of artificia
Page 137 and 138: Section 5.2.2 needs to be replaced
Page 139 and 140: 8.5 ANOTHER VIEW There is an extens
Page 141 and 142: 9. CONCLUSIONS Crime appears to be
Page 143 and 144: There appears to be no compelling e
Page 145 and 146: account for the strong positive cor
Page 147 and 148: aimed lighting used for advertising
Page 149 and 150: 10. RECOMMENDATIONS The following r
Page 151 and 152: c. Support competent investigations
Page 153 and 154: 14. REFERENCES Notes following refe
Page 155 and 156: BJS (2002a) Key crime and justice f
Page 157 and 158: http://dipastro.pd.astro.it/cinzano
Page 159 and 160: Dawson, D. and Reid, K. (1997) Fati
Page 161 and 162: Fennelly, L. J. (1996) Security sur
Page 163 and 164: Harder, B. (2002) Deprived of darkn
Page 165 and 166: IDA IS35 (1997) Billboards. Informa
Page 167 and 168: Klein, A. G., Hall, D. K. and Nolin
Page 169 and 170: Martinez-Papponi, B. L. (2000) Scie
Page 171 and 172: NBI (2002) Integrated Energy System
Page 173 and 174: Pearce, F. (1995) Declaring a curfe
Page 175 and 176: in the Nurses’ Health Study. Jour
Page 177 and 178: UNESCAP (2002) Developments in the
Page 179 and 180: FIGURES FIGURE 1. SKYGLOW AND CRIME
Page 181 and 182: FIGURE 3. SKYGLOW AND CRIME IN USA
Page 183 and 184: PERCENT FIGURE 5. USA BURGLARIES BY
Page 185 and 186: UCR CRIME RATE % FIGURE 7. UCR CRIM
Page 187: FIGURE 9. UCR CRIME AND UPWARD LIGH
Page 191 and 192: FIGURE 13. CRIME AND UPWARD LIGHT E
Page 193 and 194: Log 10 (ILLUMINANCE, lux) FIGURE 15
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Outdoor Lighting and Crime - Amper

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