The dataset contain 678,331 observations and 65 variables.

Variable	Description 
AN		Year.
AN_TRANS	Number of years as a fleet.
NB_ATOT		Number of  annual truck accidents per truck
Sector of activity in 1998	
SECT_14		1 if other sectors; 0 otherwise
SECT_05		1 if General public trucking; 0 otherwise
SECT_06		1 if Bulk public trucking; 0 otherwise
SECT_07		1 if Private trucking; 0 otherwise
SECT_08		1 if Short-term rental firm; 0 otherwise.
taille_an_c	Size of fleet per year.
taille_c	Number of trucks per fleet.
taille_t	Number of observations per fleet.
Size of fleet per year	
N_VH1		1 if fleet has 1 truck; 0 otherwise
N_VH2		1 if fleet has 2 trucks; 0 otherwise.
N_VH3		1 if fleet has 3 trucks; 0 otherwise
N_VH45		1 if feet has 4 to 5 trucks; 0 otherwise
N_VH69		1 if feet has 6 to 9 trucks; 0 otherwise
N_VH20		1 if feet has 10 to 20 trucks; 0 otherwise
N_VH50		1 if feet has 21 to 50 trucks; 0 otherwise
N_VH51		1 if feet has more than 50 trucks; 0 otherwise
DUREE_AT	Days in previous year
Violations	
NB_INF1		For overload
NB_INF2		For excessive size
NB_INF3		For poorly secured cargo
NB_INF6		For not respect service hours
NB_INF7		For mechanical inspection
NB_INF89	For other reasons
Type of vehicle use	
COMPR		1 if Commercial use; 0 otherwise
TBRGN		1 if Other than bulk goods; 0 otherwise
TBRVR		1 if Bulks goods; 0 otherwise
Type of fuel	
DIESEL		1 if Diesel; 0 otherwise
ESSENCE		1 if Gas; 0 otherwise
CARB_AUT	1 if other; 0 otherwise
Number of cylinders	
CYL1_5		1 if 1 to 5 ; 0 otherwise
CYL6_7		1 if 6 to 7; 0 otherwise
CYL8_P		1 if 8 or more than 10; 0 otherwise
Number of axles	
ESS_02		1 if 2 axles (3,000 to 4,000 kg); 0 otherwise
ESS_02P		1 if 2 axles(more than 4,000 kg) 0 otherwise
ESS_03		1 if 3 axles; 0 otherwise
ESS_04		1 if 4 axles; 0 otherwise
ESS_05		1 if 5 axles; 0 otherwise
ESS_06		1 if 6 axles or more; 0 otherwise
Number of violations	
VIT		For speeding.
SANCT		Suspended license
ROUGE		For running a red light.
ARRET		For ignoring a stop sign
CEINTURE	For not wearing a seat belt
Observation period	
an_91		1 if the period is 1991; 0 otherwise.
an_92		1 if the period is 1992; 0 otherwise
an_93		1 if the period is 1993; 0 otherwise
an_94		1 if the period is 1994; 0 otherwise
an_95		1 if the period is 1995; 0 otherwise
an_96		1 if the period is 1996; 0 otherwise
an_97		1 if the period is 1997; 0 otherwise
an_98		1 if the period is 1998; 0 otherwise
camion		1 if  the last truck of fleet; 0 otherwise
FLOTTE		1 if  the last observation of fleet; 0 otherwise
ident_firm	Number that identify the fleet.
ident_truck	Number that identify the truck.
n_period	Number of periods of the truck.
nper_f		Number of periods of the fleet


