washington_roads {cureplots}

Washington Road Crashes

Description

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

The data frame washington_roads has 1,501 rows and 9 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.

Source

<https://highways.dot.gov/research/safety/hsis>