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Measurement and evaluation of transit travel time reliability

File Language:
English


Details

  • Creators:
    Watkins, Kari ORCID ICON IMG ; Rutherford, G. Scott
  • Corporate Creators:
    United States. Department of Transportation. Office of the Secretary
  • Subject/TRT Terms:
  • Publication/ Report Number:
    TNW2010-10
  • Resource Type:
    Tech Report
  • Geographical Coverage:
    United States
  • Edition:
    Final Research Report
  • Corporate Publisher:
    Transportation Northwest (TransNow) UTC
  • Abstract:
    Transportation system customers need consistency in their daily travel times to enable them to plan their daily ; activities, whether that is a commuter on their way to work, a company setting up delivery schedules for just‐in‐time ; manufacturing, or a transit agency scheduling coaches and drivers. To understand the effects such variability has on ; transportation customers, performance measures must take typical travel times into account as well deviation from ; those typical travel times. Some travel behavior studies have even suggested that reliability in travel is more important ; than travel time. As we strive to figure out how to achieve a sustainable transportation system, further research into ; understanding reliability and how it influences mode choice is needed. Reliability research must include measures of ; reliability that can be used across modes, ways to incorporate travel time reliability into travel demand forecasting and ; analysis of competitiveness of modes partially based on travel time reliability. We would like to obtain automated ; vehicle location data from King County Metro, Sound Transit, Tri‐met and other agencies. Our intent is to begin with an ; investigation of schedule adherence, a key measure of travel time reliability, to characterize which aspects of routes ; (exclusive lanes, CBD, monthly pass use) make them more or less reliable. However, the measure of schedule adherence ; doesn’t go far enough to allow comparison to other modes in an effort to understand if it is perception or reality that ; causes potential riders to avert from transit. In addition to schedule adherence, we would like to consider other aspects ; of reliability such as the relationship between travel time and the allowance of extra time to ensure meeting a schedule. ; We would also like to develop a system which takes other factors such as ridership into account in ranking of route ; reliability to help agencies prioritize infrastructure improvements to maximize value.
  • Funding:
    DTRT07-G-0010
  • Download URL:
    https://rosap.ntl.bts.gov/view/dot/18663/dot_18663_DS1.pdf
  • File Type:
    Filetype[PDF - 367.92 KB]
  • Collection(s):
    University Transportation Centers ; US Transportation Collection
  • Main Document Checksum:
    urn:sha-512:5e3f4ed175b3eb274d000e41c668acae8b2ab34ae85523967ef0895b2408d1cb7da900c4f0a41157837cdedaf6b12a508536107606991859f8b262432bedc4f3
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