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Crashes on Washington primary roads from 2016, 2017, and 2018. Data acquired from Washington Department of Transportation through the Highway Safety Information System (HSIS).

Usage

washington_roads

Format

Data frame compiled from roadway, traffic, and police-reported crash data that has 1,501 rows and 13 columns:

ID

Anonymized road ID. Factor.

Year

Year. Integer.

AADT

Annual Average Daily Traffic (AADT). Double.

Length

Segment length in miles. Double.

Total_crashes

Total crashes. Integer.

lnaadt

Natural logarithm of AADT. Double.

lnlength

Natural logarithm of length in miles. Double.

speed50

Indicator of whether the speed limit is 50 mph or greater. Binary.

ShouldWidth04

Indicator of whether the shoulder is 4 feet or wider. Binary.

Fatal_crashes

Total number of non-intersection fatal crashes for the road segment

Injury_crashes

Total number of non-intersection Injury crashes for the road segment

Animal

Total number of non-intersection animal-related crashes for the road segment

Rollover

Total number of non-intersection rollover crashes for the road segment