Idaho Traffic Collisions, 2001

NHTSA · 2001 · ROSA P / Idaho. Office of Highway Safety

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Summary

**Idaho Traffic Collisions, 2001** is an annual report prepared by the Idaho Transportation Department’s Office of Highway Safety to describe collision characteristics and identify safety problems for state and local agencies. The document utilizes data from the Idaho Transportation Department State Collision Database, which includes collisions investigated by law enforcement resulting in injury, death, or property damage exceeding $750. The report analyzes statewide trends, economic costs, and specific focus areas such as impaired driving, restraint usage, and aggressive driving, comparing 2001 data against prior years and national statistics. In 2001, Idaho recorded 26,090 total collisions, a 0.6% decrease from 2000. Fatal collisions decreased by 6.6% to 225, and total fatalities dropped 6.2% to 259. Injury collisions fell by 1.8% to 9,231. Despite these reductions, the estimated economic cost of collisions remained high at $1.5 billion, comprising productivity losses, medical costs, and property damage. The fatality rate was 1.81 per 100 million vehicle miles traveled (AVMT), a 9.9% decrease from 2000, though it remained higher than the U.S. average. Rural roadways accounted for 82% of fatal collisions, attributed to higher speed limits and the fact that 91% of Idaho’s road mileage is rural. Single-vehicle collisions, while representing only 31% of all crashes, accounted for 56% of fatalities, with overturns being the leading harmful event. Contributing circumstances varied by collision type. Speed was the primary factor in single-vehicle collisions (36%), while inattention/distraction was most prevalent in multiple-vehicle collisions (23%). The report highlights that society bears nearly 75% of crash costs through insurance premiums, taxes, and public services. Detailed breakdowns by county and city reveal varying collision rates, with Clark County showing the highest fatal and injury collision rate per 1,000 population (21.6). The data also tracks demographic shifts, noting an increase in licensed drivers over age 35, and provides specific statistics on impaired driving, seat belt usage, and collisions involving pedestrians, bicyclists, and motorcyclists to guide targeted safety interventions.

Key finding

Single-vehicle collisions represented 31% of all traffic incidents but accounted for 56% of all fatal collisions in Idaho during 2001.

Methodology

dataset

Provenance

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Summary generated by qwen3.6-27b-prismaquant on 2026-06-10; verification: verified.

Topics

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• incidence prevalence
• fatality injury trends
• demographic disparities
• comparative international

Information type

What kind of knowledge this paper contributes, grouped by family — independent of topic (what it is about) and method (how it was studied).

• Empirical Findings: crash risk outcomes, observational prevalence