BTS | Table 1 Dependent and Independent Variables

Table 1 Dependent and Independent Variables

Category	Variable	Name
Number of accidents	The (log-transformed) number of accidents with persons killed or seriously injured	LNACCKSI
Number of accidents	The (log-transformed) number of accidents with lightly injured persons	LNACCLI
Number of casualties	The (log-transformed) number of persons killed or seriously injured	LNPERKSI
Number of casualties	The (log-transformed) number of persons lightly injured	LNPERLI

Category	Variable	Name
Laws and regulations	Law of June 1975 → mandatory seat belt use in the front seats	Law0675
	Law of November 1988 → introduction of zones with a speed limit of 30 km/h	Law1188
	Law of January 1992 → a.o. speed limit of 50 km/h in urban areas and 90 km/h at road sections with at least 2 by 2 lanes without separation	Law0192
	Law of December 1994 → 0.5‰ blood alcohol concentration imposed and higher fines in case of 0.8‰ or higher	Law1294
	Law of April 1996 → a vehicle driver should give right of way to pedestrians who are (or have the intention to) crossing the street	Law0496
Weather conditions	The quantity of precipitation (in mm)	Quaprec
	The monthly percentage of days with precipitation	Pdayprec
	The number of sunlight hours	Hrssun
	The monthly percentage of days with sunlight	Pdaysun
	The monthly percentage of days with frost/freezing temperatures	Pdayfrost
	The monthly percentage of days with snow	Pdaysnow
	The monthly percentage of days with thunderstorm	Pdaythun
Economic variables	The percentage inflation	Inflat
	The (log-transformed) number of unemployed persons	Lnunemp
	The (log-transformed) number of car registrations	Lncar
	The percentage of second-hand car registrations	Poldncar