Pocket Guide to Large Truck and Bus Statistics 2015
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Summary
The Federal Motor Carrier Safety Administration’s (FMCSA) 2015 Pocket Guide to Large Truck and Bus Statistics serves as a comprehensive resource detailing the agency’s enforcement activities and safety data regarding commercial motor vehicles (CMVs). The publication aims to support the FMCSA’s mission to reduce crashes, injuries, and fatalities involving large trucks and buses by providing industry representatives, federal agencies, and the public with accessible performance data. The guide relies primarily on data from the Motor Carrier Management Information System (MCMIS), which aggregates crash, census, and inspection records for carriers subject to Federal Motor Carrier Safety Regulations. The document presents statistical overviews of the CMV landscape as of 2013 and 2014. In 2013, there were approximately 10.6 million registered large trucks and 864,549 buses in the United States, accounting for 9.2 percent and 0.51 percent of total vehicle miles traveled, respectively. By December 2014, there were 532,024 active interstate and intrastate hazardous materials carriers, employing approximately 5.7 million drivers. The guide details enforcement mechanisms, noting that state inspectors conduct roughly 95 percent of roadside inspections. Between 2010 and 2014, total roadside inspections declined from 3.6 million to 3.38 million. During this period, driver out-of-service (OOS) rates hovered around 5 percent, while vehicle OOS rates remained near 20 percent. Common driver violations included logbook discrepancies and hours-of-service breaches, while frequent vehicle violations involved lighting defects and brake issues. Safety reviews and audits are also analyzed, showing a shift toward the Compliance, Safety, Accountability (CSA) program. Total reviews decreased from 19,748 in 2010 to 14,254 in 2014, with CSA-focused reviews becoming the predominant type. New entrant safety audit pass rates improved significantly, rising from 62.9 percent in 2010 to 80.7 percent in 2014. Crash statistics for 2013 indicate that 3,806 fatal crashes involved large trucks or buses, representing 12.7 percent of all fatal crashes. Additionally, an estimated 385,000 nonfatal crashes involved these vehicles. The guide also highlights safety belt usage trends, showing an increase in driver belt usage from 78.1 percent in 2010 to 83.7 percent in 2013. The significance of this publication lies in its consolidation of critical safety metrics, offering a transparent view of the commercial motor carrier industry’s scale and safety performance. By documenting trends in inspections, violations, and crash involvement, the guide underscores the FMCSA’s data-driven regulatory approach. The data reveals a maturing safety enforcement landscape, characterized by increased audit pass rates for new carriers and evolving inspection protocols under the CSA framework, providing a baseline for assessing the effectiveness of federal safety initiatives.
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| Stage | Outcome | Tool | Model | Prompt | Attempts | Completed |
|---|---|---|---|---|---|---|
| discover | success | rosap | — | — | 2 | 2026-05-23 |
| archive | success | — | — | — | 1 | 2026-05-23 |
| extract | success | cached | — | — | 2 | 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 | 42 | 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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- Empirical Findings: crash risk outcomes
- Methodological Resource: dataset resource