An Evaluation of the Valley Metro–Waymo Automated Vehicle RideChoice Mobility on Demand Demonstration, Final Report
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Summary
This report evaluates a pilot demonstration conducted by Valley Metro and Waymo to assess the integration of autonomous vehicles (AVs) into subsidized mobility services for disadvantaged populations. The study addresses the research question of how AVs can meet the daily mobility needs of older adults and individuals with disabilities, specifically examining user perceptions of safety, convenience, and changes in travel behavior. The project was motivated by the need to explore innovative solutions for mobility-disadvantaged residents who lack consistent access to employment, healthcare, and social opportunities. The methodology involved a six-month pilot (September 2019–March 2020) in the Greater Phoenix area, where Waymo Level 4 autonomous vehicles were added as a certified provider for Valley Metro’s RideChoice program. RideChoice is a subsidized curb-to-curb service for ADA-certified paratransit users and adults aged 65 and over. Participants, a self-selected group of 51 RideChoice users, were offered AV rides at a fixed $3.00 fare. Data collection included three surveys administered prior to, during, and after the pilot, two focus groups, and a policymaker roundtable. Researchers also analyzed aggregate trip data comparing Waymo usage against traditional non-AV RideChoice options (taxi, Uber, Lyft). Key findings indicate that participants felt significantly safer in AVs than in traditional services, with 70% strongly agreeing that AVs were safe compared to only 29% for traditional options. Users rated AVs higher than traditional services on wait time, travel time, convenience, and comfort. The introduction of AVs generated new demand, with 59% of participants reporting they made more trips than before. Usage patterns showed AVs were utilized significantly more during early morning hours (12:00–6:00 AM) compared to non-AV options. Participants expressed a strong willingness to ride alone without a safety operator and preferred riding with family or friends over strangers. Most respondents anticipated that widespread AV adoption would improve road safety and enhance mobility for all travelers. The significance of this study lies in its evidence that AVs can effectively serve mobility-disadvantaged populations, offering greater convenience and safety than existing subsidized options. The results suggest that if operating costs decrease, AVs could provide a budget-friendly, scalable solution for low-income households and those with limited mobility. Policymakers and planners identified a need for further exploration of use cases, including first/last-mile connectivity, infrastructure requirements, and data privacy issues. The report concludes that AVs have the potential to expand access to opportunities for vulnerable populations, warranting additional pilot projects to refine service models and policy frameworks.
Key finding
Participants rated autonomous vehicle services higher than traditional options for wait time, travel time, convenience, and comfort, and 59% reported making new trips as a result of the AV option.
Methodology
survey
Sample size: 51
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 |
|---|---|---|---|---|---|---|
| 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 | 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: self report data, observational prevalence