CUTC Meeting, New Brunswick, NJJune 2, 2015

TRAVEL TIME RELIABILITY: DEFINITIONS, ESTIMATION,

AND APPLICATIONS FOR FDOT

Lily Elefteriadou, University of FloridaDoug McLeod, Florida DOT

Li Jin, Kittelson and Associates, Inc.

Overview Travel Time Reliability (TTR) for FDOT’s

Strategic Intermodal System (SIS)

Definition(s) of TTR, Methodology and Applications

Development in Series of Projects 2006 - 2013

Funded by FDOT as Match to CMS (Tier 1) UTC) and STRIDE (Regional UTC)

Prototype by UF

Implementation by KAI; Validation by UF/FDOT

Now used by Cambridge Systematics

CUTC Summer Meeting, June 2, 2015

What is TTR?● % on-time

arrivals● Variability

CUTC Summer Meeting, June 2, 2015

Scenario 3Congestion, no incidents, no rain, workzone

Scenario n………

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Scenario 1No congestion, no incidents, no workzones, no rain

Scenario 2No congestion, no workzones, no rain, incident

-1 Standard Deviation

Travel Time (hours)

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Average Travel Time

Estimated based on expected travel time for various scenarios

Sample of Results (1)Broward County, Florida

CUTC Summer Meeting, June 2, 2015

CUTC Summer Meeting, June 2, 2015

Sample of Results (2)Trends in Florida

Current Uses and Applications FDOT SIS Statewide Reporting of TTR for

non-Instrumented Highways

“What-if” Scenarios for Statewide Implementation

Road Rangers

Work Zone Policies

Managed Lanes

STRIDE-sponsored workshop on Performance Measures for Planning – June 11, 1 pm – Currently 100 registrants - At Capacity!

CUTC Summer Meeting, June 2, 2015

Thank You!

For additional information and event updates please visit

www.transportation.institute.ufl.eduwww.stride.ufl.edu

Contact information:

Lily Elefteriadou, Ph.D.elefter@ce.ufl.edu352-392-9537, ext. 1452

CUTC Summer Meeting, June 2, 2015