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Enhancing the estimation of freeway level-of-service thresholds with travelers’ perceptions

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  • Piva, Fernando José
  • Washburn, Scott S.
  • Setti, José Reynaldo

Abstract

Consistency between travelers’ perception of trip quality and the level of service (LOS) classification, as defined by the Highway Capacity Manual, of traffic operational conditions is crucial for both highway system management and roadway improvement funding decisions. However, research on measuring travelers’ perceptions of traffic operational conditions is a relatively immature field and methods to obtain such data are still evolving. Previous studies have employed various techniques to gather data on travelers’ perceptions, including driver interviews at rest stops, focus groups, and rating pre-recorded driving video clips. The challenge with these methods, however, lies in collecting a large sample of responses and/or providing a comprehensive set of traffic operational combinations in pre-recorded videos.

Suggested Citation

  • Piva, Fernando José & Washburn, Scott S. & Setti, José Reynaldo, 2025. "Enhancing the estimation of freeway level-of-service thresholds with travelers’ perceptions," Transportation Research Part A: Policy and Practice, Elsevier, vol. 199(C).
    • Handle: RePEc:eee:transa:v:199:y:2025:i:c:s096585642500196x
    DOI: 10.1016/j.tra.2025.104568
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