Variable	Coefficient	Std. Error	p-value
Constant	2.341	0.020	<0.0001
Before/After Period
1 if after speed reduction, 0 if before	-0.010	0.001	<0.0001
Time-of-Day
1 if 6:00 a.m. to 10:00 a.m., 0 otherwise	-0.007	0.001	<0.0001
1 if 4:00 p.m. to 8:00 p.m., 0 otherwise	0.028	0.005	<0.0001
Day-of-Week
1 if Wednesday, 0 otherwise	0.056	0.002	<0.0001
1 if Thursday, 0 otherwise	0.025	0.002	<0.0001
1 if Friday, 0 otherwise	0.016	0.002	<0.0001
1 if Weekend, 0 otherwise	-0.081	0.003	<0.0001
Roadway Characteristics
Natural logarithm of surface width	0.088	0.005	<0.0001
Natural logarithm of pavement condition index	0.107	0.002	<0.0001
Curb height	-0.011	0.000	<0.0001