Contribution of ITS to rural safety : a look at crashes in Washington state
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Summary
This study investigates the potential applications of Intelligent Transportation Systems (ITS) to improve safety on rural roadways in Washington State. Using data from state collision reports between 1993 and 1996, the authors analyzed contributing factors for rural crashes to determine how ITS could address specific causes. The analysis revealed that human behavior, such as speeding, inattention, and poor judgment, is the primary contributor to rural crashes, while roadside environment factors account for approximately one-third of incidents. The authors conclude that while current ITS applications like speed warning systems and weather information can mitigate crashes related to roadside hazards, they offer limited direct solutions for behavioral issues. Future benefits are expected to come from advanced in-vehicle systems developed through federal research projects.
Key finding
Human behavior is the leading cause of rural crashes in Washington State, and while current ITS applications can effectively address roadside hazard-related incidents, they currently lack broad direct solutions for behavioral factors like inattention and poor judgment.
Methodology
dataset
Provenance
The full processing record for this entry. Every stage of this paper's journey through the pipeline is logged — what ran, with which tool and model, how many attempts it took, and when it last completed. Discovered via bulk_ingest_rosap on 2026-05-23 (7 acquisition events logged).
| Stage | Outcome | Tool | Model | Prompt | Attempts | Completed |
|---|---|---|---|---|---|---|
| discover | success | rosap | — | — | 2 | 2026-05-23 |
| archive | success | — | — | — | 1 | 2026-05-23 |
| extract | skipped | empty | — | — | 4 | 2026-06-10 |
| clean | success | — | — | — | 1 | 2026-06-01 |
| chunk | success | — | — | — | 1 | 2026-06-01 |
| embed | success | — | — | — | 1 | 2026-06-02 |
| enrich | success | — | — | — | 1 | 2026-05-23 |
| promote | success | — | — | — | 1 | 2026-05-23 |
| summarize | success | llm | qwen3.6-27b | — | 3 | 2026-06-01 |
| tag | success | vector_similarity | — | — | 19 | 2026-06-11 |
| verify | success | — | — | — | 1 | 2026-06-03 |
Summary generated by qwen3.6-27b-prismaquant on 2026-06-01; verification: verified.
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- Empirical Findings: crash risk outcomes