Exploring the Application of the Linear Poisson Autoregressive Model for Analyzing the Dynamic Impact of Traffic Laws on Fatal Traffic Accident Frequency
Table 1
Summary statistics of annual fatal traffic accidents and factors in Illinois.
Variables
Min
Max
Mean
St. error
Fatal traffic accidents
832
1877
1316
299.31
Total VMT (million)
60943
109135
89696
16914.83
GDP (in $100,000)
405739
807458
593554
134797
Rural VMT proportion (%)
0.24
0.34
0.30
0.03
Gasoline price ($ per gallon)
1.54
3.71
2.41
0.64
Per capita beer consumption (gallons)
1.12
1.45
1.30
0.10
Average temperature (°F)
49.38
55.78
52.16
1.52
Precipitation concentration period
28.54
51.18
39.68
5.68
Safety belt law
January 1988
Before: 0; after: 1 (year 1988: 1)
DUI toughened penalties
January 1982
Before: 0; after: 1 (year 1982: 1)
Drivers under age 18 may not use a wireless phone while driving
July 2005
Before: 0; after: 1 (year 2005: 0)
Persons under age 18 who obtain a graduated driver’s license may not drive during the first 6 months of the license, or until the person reaches age 18, with more than one person under age 20 in the vehicle
January 2004
Before: 0; after: 1 (year 2004: 1)
Disallow parents/guardians to knowingly permit the consumption of alcohol by underage invitees at their residence
August 2007
Before: 0; after: 1 (year 2007: 0)
Motorcycles and bicycles may proceed on a red light following the rules applicable after a “reasonable period of time”
