PROGRAM OVERVIEW 03/26/2019 Page 1 of 16 FINAL PRESENTATION - - PowerPoint PPT Presentation

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FINAL PRESENTATION PIMA COUNTY TRANSPORTATION ADVISORY COMMITTEE FY19-20 Pavement Program Roadway Prioritization MARCH 26, 2019 PROGRAM OVERVIEW 03/26/2019 Page 1 of 16 FINAL PRESENTATION Prioritization Methodology Worst First (Repair

SLIDE 1

PIMA COUNTY TRANSPORTATION ADVISORY COMMITTEE

FY19-20 Pavement Program Roadway Prioritization

MARCH 26, 2019

PROGRAM OVERVIEW

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SLIDE 2

Prioritization Methodology

Worst First

(Repair Only)

Maximize Miles

(Preservation Only)

Combination

(Keep Good Roads Good)

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SLIDE 3

Two Programs – Two Different Methodologies

RLRRP (Property Tax) – Maximize Miles (local roads only)
HURF Bond (DOT-59) – Worst First (Arterials & Collectors)

System/Network Based Approach

Need a tool that is:

Robust (Roughly 1900 miles, mixed classification)
Reacts to funding changes
Objective – looks at road condition, maintains overall

system condition index

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SLIDE 4

StreetSaver

Robust:
Developed by MTC (Metropolitan Transportation

Commission), the PAG of the San Francisco Bay Area to help maintain city and county roadways and street

Reacts to funding changes:
Flexible to encompass available funding per jursidiction
Objective:
Uses road condition index, effective treatments, network

level assignment

Compares different scenarios to show impact of

decisions

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SLIDE 5

Example Graph: Impact of Funding Levels on Condition Illustration: Effectiveness Based on PCI-Time Curve

StreetSaver

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Example Graph: Impact of Funding Levels on Deferred Need Example Graph: Effect of Funding Levels on Backlog

StreetSaver

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SLIDE 7

Current Network Dashboard

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SLIDE 8

Current PCI Breakpoints

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SLIDE 9

Current Decision Tree

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SLIDE 10

Scenarios

Ran 5 different scenarios of the projected 5-year pavement

preservation contracts allocations

Scenario 1 – Arterials & Collectors
Scenario 2 – Arterials & Collectors, Split by BOS District
Scenario 3 – All Roads, Split by Classification
Scenario 4 – All Roads, Split by BOS District & Classification
Scenario 5 – All Roads StreetSaver Best Practice

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SLIDE 11

Scenario 1

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SLIDE 12

Scenario 2

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SLIDE 13

Scenario 3

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SLIDE 14

Scenario 4

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SLIDE 15

Scenario 5

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SLIDE 16

Questions?

Contact Information: robert.lane2@pima.gov

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