Public Transit in America: Results from the 2001 National Household Travel Survey
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Summary
This report analyzes public transit usage in the United States using data from the 2001 National Household Travel Survey (NHTS), updating previous findings from the 1995 National Personal Transportation Survey. The study was motivated by the need to understand transit ridership trends amid declining market shares, growing congestion, and policy goals to increase transit use. It aims to characterize transit travel, users, and markets to assist planners and policymakers in understanding customer needs and behavior. The primary data source is the 2001 NHTS, a stratified random sample survey of daily personal travel conducted between March 2001 and May 2002. The survey collected data from 26,038 households and 60,282 persons, recording 248,517 trips. The NHTS replaced earlier surveys by combining short and long-distance travel data into a single source and included travel data for children under four years old for the first time. The report defines public transit as bus, commuter train, streetcar/trolley, and subway/elevated rail, excluding school buses, shuttles, and intercity services. The authors caution that methodological changes and extraordinary events during the data collection period, such as the September 11 attacks and anthrax scares, may have influenced travel patterns and response rates. The analysis examines trends in demographics, vehicle ownership, and personal travel from 1969 to 2001, alongside specific characteristics of transit trips in 2001. Key findings include the stabilization of vehicle ownership rates and a decline in zero-vehicle households, which correlates with changes in transit market share. The report details the nature of public transit use, including trip distances, travel times, waiting times, and speeds, noting variations by Metropolitan Statistical Area (MSA) scale and personal characteristics. It highlights the extent of transferring among transit users and analyzes mode share across different population segments, such as income levels, driver status, and medical conditions. The study also compares NHTS data with other sources like the Census Journey to Work and the American Community Survey to interpret mode share trends. The significance of this report lies in its comprehensive characterization of the transit market, providing descriptive data and interpretations that reveal who uses transit and how. By identifying specific sub-markets and trends, the report offers insights into the challenges and opportunities for public transportation. It serves as a resource for the transit industry to better understand travel behavior, supporting efforts to increase ridership and improve service planning. The findings underscore the importance of considering demographic and socioeconomic factors in transit policy and highlight the evolving role of public transit in the context of broader travel trends.
Key finding
Transit mode share experienced a slight decline in the early 2000s despite a resumption of ridership growth in the late 1990s, with usage patterns varying significantly by vehicle availability and income levels.
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 (6 acquisition events logged).
| Stage | Outcome | Tool | Model | Prompt | Attempts | Completed |
|---|---|---|---|---|---|---|
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| extract | success | cached | — | — | 2 | 2026-06-10 |
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| summarize | success | llm | qwen3.6-27b-prismaquant | summ-v5 | 3 | 2026-06-10 |
| tag | success | vector_similarity | — | — | 24 | 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: observational prevalence