National Transportation Statistics (NTS) 2017 [4th Quarter]
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Summary
The *National Transportation Statistics (NTS) 2017* report, published by the U.S. Department of Transportation’s Bureau of Transportation Statistics (BTS), serves as a comprehensive statistical reference for the United States transportation system. The document addresses the need for high-quality, centralized data to support public and private transportation decision-making. It aggregates information from federal agencies, private industry, and associations to provide a holistic view of the nation’s transportation infrastructure, safety records, economic contributions, energy consumption, and environmental impacts. The report is structured into four primary chapters, each focusing on a distinct aspect of the transportation sector, and is updated quarterly to reflect the most recent available data. Chapter 1 details the physical extent, condition, and usage of the transportation network. It provides data on system mileage for roads, rails, and pipelines, as well as inventories of vehicles, aircraft, and vessels. The chapter also covers travel and goods movement, including vehicle-miles traveled, passenger-miles, and freight ton-miles across various modes. Chapter 2 focuses on transportation safety, presenting statistics on fatalities, injuries, and accidents for highway, air, rail, transit, water, and pipeline modes. It includes specific data on hazardous materials incidents, occupational fatalities, and safety trends such as distracted driving laws and restraint use. Chapter 3 examines the relationship between transportation and the economy. It quantifies transportation’s contribution to the Gross Domestic Product (GDP) and Gross Domestic Demand, alongside data on employment, wages, and productivity within transportation industries. The chapter also tracks consumer expenditures on transportation, including fuel prices and vehicle ownership costs, as well as government revenues and expenditures related to transportation infrastructure. Chapter 4 addresses energy and environmental impacts, detailing energy consumption by mode, fuel efficiency metrics, and emissions data. It includes information on air pollution trends, federal emission standards for various vehicle types, and other environmental factors such as water pollution and noise. The significance of the NTS lies in its role as a foundational resource for policymakers, researchers, and industry stakeholders. By compiling disparate data sources into a single, accessible format, the report facilitates informed decision-making regarding transportation policy, infrastructure investment, and safety regulations. The inclusion of metric conversions and detailed source citations enhances the report’s utility for international comparisons and further statistical analysis. As a public domain document, it supports transparency and accountability in the transportation sector, aligning with the BTS mission to advance the effective use of transportation data for the economic well-being and quality of life of Americans.
Key finding
The report provides a comprehensive compilation of statistical data regarding the physical, safety, economic, and environmental aspects of the U.S. transportation system.
Methodology
review
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 (84 acquisition events logged).
| Stage | Outcome | Tool | Model | Prompt | Attempts | Completed |
|---|---|---|---|---|---|---|
| discover | success | rosap | — | — | 2 | 2026-05-23 |
| archive | success | — | — | — | 1 | 2026-05-23 |
| extract | success | cached | — | — | 3 | 2026-06-10 |
| clean | success | — | — | — | 1 | 2026-06-01 |
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| embed | success | — | — | — | 1 | 2026-06-02 |
| enrich | success | — | — | — | 1 | 2026-05-23 |
| promote | success | — | — | — | 1 | 2026-05-23 |
| summarize | success | llm | qwen3.6-27b-prismaquant | summ-v5 | 81 | 2026-06-10 |
| tag | success | vector_similarity | — | — | 19 | 2026-06-11 |
| verify | success | — | — | — | 2 | 2026-06-10 |
Summary generated by qwen3.6-27b-prismaquant on 2026-06-10; verification: verified.
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Information type
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- Empirical Findings: crash risk outcomes, observational prevalence
- Methodological Resource: dataset resource