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Measuring Rural Transit Availability Nicholas E. Lownes, Ph.D. 18th National Rural and Intercity Bus Transportation Conference October 21, 2008
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Motivation Rural transit service presents several difficulties: CT has significant rural population Theoretical treatments of rural transit availability may miss important nuance Fixed-route measures miss important aspects Invite input: nlownes@engr.uconn.edu
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Fixed-Route Availability Studied a circulator route design in Austin, TX (not rural) Under idealized conditions, definition of accessibility and opportunity cost of no access impacted results significantly.
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User-Focused Station UT
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Operator-Focused Station UT
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Balanced Station UT
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Accessibility Perspectives Characterization depends on perspective & purpose Accessibility –Restricted Budget – Best service within restrictive budget constraints –Social Benefit or Inducing Demand– Maximizing accessibility/coverage
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Walking Threshold Sensitivity
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Availability Measures Fixed-route Measures Spatial Measures –Local Index of Transit Accessibility (LITA): Developers seeking to improve real estate investments –Transit Capacity and Quality of Service Manual (TCQSM): Transit planners & managers
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Availability Measures Spatiotemporal Measures –Transit Level of Service (TLOS): Transit planners & managers Track boarding opportunities (spatial coverage) over time Demand variability throughout day Utility Measures –TxDOT Transit Accessibility Measure (TAM) Function of origin, destination, demographics, trip purpose
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Opportunity Cost Back of the envelope –Cost of maintaining single-car vs. two- car household ≈ $6000 (fuel at $2.75 per gallon –Function of: proximity to transit (3/4 mile), Driving less Walking more Owning fewer cars From: Bailey, L. Public Transportation and Petroleum Savings in the U.S.: Reducing Dependence on Oil. ICF International, American Public Transportation Association, Washington, D.C., 35 pp, (2007).
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Opportunity Cost Sensitivity
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Opportunity Cost Econometric Analyses –Both SP/RP modeling and analysis –Relative WTP for features of transit service –Elasticity of transit –Value of travel time savings
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Rural Transit Availability TCQSM offers methods for estimating rural transit LOS, incorporating availability Rural areas will fall below density threshold for transit-supportive areas in fixed-route calculations
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Demand Responsive Availability Treated separately in TCQSM – a much different service Availability a function of: –Response time –Trip availability/connectivity –Hours and days of service –Reliability –Quality of service w.r.t. time, comfort
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Rural Transit Availability Rural populations differ from urban counterparts –Demographically –More vulnerable to energy price fluctuations –Equity issues What’s missing: Information Penetration –No doubt this is a topic rural operators have thought about considerably (there was a session at this conference)
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Rural Transit Availability Can we consider transit service available if people are unaware? Rural demographics may impact: –Internet usage –Attitudes toward transit How can we incorporate these ideas in an availability measure?
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Our work in CT Phase I: Analysis of Availability Measures –Consistency –Parameters of Interest –Appropriate Response Variable Propensity to ride Spatial Coverage O-D coverage Temporal Coverage Service hours
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Work in CT Phase II: Expanding to Rural Markets How do we integrate rural markets? –Park and ride express coverage? –DRT – ridership and/or LOS –Information penetration What are the best practices for communicating and how do we include in Connecticut?
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Acknowledgement Partially sponsored by the Connecticut Cooperative Highway Research Program, Project 08-5
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Thank you Source: www.fta.dot.gov/about/about_FTA_2449.html/ Ideas, comments, questions: nlownes@engr.uconn.edu
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