Table 2 Crash relative risk change between speed enforcement cameras (SEC) in different implementation scenarios considering community behavior, road traffic, and use of telematics enforcement.
Community | Traffic | 2 Fix SEC vs 1 Fix SEC | 3 Fix SEC vs 1 Fix SEC | Point-to-Point SEC vs 1 Fix SEC | |
|---|---|---|---|---|---|
Crash relative risk | Crash relative risk | Crash relative risk | |||
No Telematics | Average | High Traffic | − 0.14% | − 0.28% | − 6.51% |
Low Traffic | − 0.19% | − 0.47% | − 6.81% | ||
Law-abiding | High Traffic | − 0.06% | − 0.13% | − 3.79% | |
Low Traffic | − 0.11% | − 0.27% | − 4.13% | ||
Law-avoiding | High Traffic | − 0.25% | − 0.58% | − 11.25% | |
Low Traffic | − 0.34% | − 0.81% | − 11.27% | ||
Law-carefree | High Traffic | − 0.14% | − 0.31% | − 6.63% | |
Low Traffic | − 0.19% | − 0.47% | − 6.83% | ||
Telematic Enforcement | Average | High Traffic | − 0.11% | − 0.24% | − 5.91% |
Low Traffic | − 0.18% | − 0.42% | − 6.22% | ||
Law-abiding | High Traffic | − 0.06% | − 0.12% | − 3.44% | |
Low Traffic | − 0.11% | − 0.25% | − 3.78% | ||
Law-avoiding | High Traffic | − 0.23% | − 0.51% | − 10.23% | |
Low Traffic | − 0.29% | − 0.73% | − 10.35% | ||
Law-carefree | High Traffic | − 0.10% | − 0.26% | − 6.01% | |
Low Traffic | − 0.18% | − 0.43% | − 6.25% |
