Car crash on US roads — crash • hecstatmod

The National Highway Traffic Safety Administration (NHTSA) compiles statistics about road traffic deaths in the Fatality Analysis Reporting System. The yearly mortality counts for 2010 and 2018 are given in crash according to whether the accident occured during daytime or nighttime, and according to the NHTSA-defined geographic area.

crash

Format

A data frame of 40 observations (long format) containing the following five variables:

year: factor giving the reference year, either 2010 or 2018
region: factor for the geographic regions defined by NHTSA
popn: integer, total estimated population of the region based on census data
time: factor indicating the time of the accident, day or night
ndeath: integer, the number of death in car accidents

Source

National Highway Traffic Safety Administration (NHTSA)