tac streetsaver presentation...
TRANSCRIPT
![Page 1: TAC StreetSaver PRESENTATION 20190326webcms.pima.gov/UserFiles/Servers/Server_6/File/Government/Transportation...Mar 26, 2019 · PIMA COUNTY TRANSPORTATION ADVISORY COMMITTEE FY19-20](https://reader035.vdocuments.net/reader035/viewer/2022070108/60366f8a174fc52cb73bf348/html5/thumbnails/1.jpg)
PIMA COUNTY TRANSPORTATION ADVISORY COMMITTEE
FY19-20 Pavement Program Roadway Prioritization
MARCH 26, 2019
PROGRAM OVERVIEW
FINAL PRESENTATION
03/26/2019 Page 1 of 16
![Page 2: TAC StreetSaver PRESENTATION 20190326webcms.pima.gov/UserFiles/Servers/Server_6/File/Government/Transportation...Mar 26, 2019 · PIMA COUNTY TRANSPORTATION ADVISORY COMMITTEE FY19-20](https://reader035.vdocuments.net/reader035/viewer/2022070108/60366f8a174fc52cb73bf348/html5/thumbnails/2.jpg)
Prioritization Methodology
• Worst First (Repair Only)
• Maximize Miles (Preservation Only)
• Combination (Keep Good Roads Good)
FINAL PRESENTATION
03/26/2019 Page 2 of 16
![Page 3: TAC StreetSaver PRESENTATION 20190326webcms.pima.gov/UserFiles/Servers/Server_6/File/Government/Transportation...Mar 26, 2019 · PIMA COUNTY TRANSPORTATION ADVISORY COMMITTEE FY19-20](https://reader035.vdocuments.net/reader035/viewer/2022070108/60366f8a174fc52cb73bf348/html5/thumbnails/3.jpg)
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
FINAL PRESENTATION
03/26/2019 Page 3 of 16
![Page 4: TAC StreetSaver PRESENTATION 20190326webcms.pima.gov/UserFiles/Servers/Server_6/File/Government/Transportation...Mar 26, 2019 · PIMA COUNTY TRANSPORTATION ADVISORY COMMITTEE FY19-20](https://reader035.vdocuments.net/reader035/viewer/2022070108/60366f8a174fc52cb73bf348/html5/thumbnails/4.jpg)
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
FINAL PRESENTATION
03/26/2019 Page 4 of 16
![Page 5: TAC StreetSaver PRESENTATION 20190326webcms.pima.gov/UserFiles/Servers/Server_6/File/Government/Transportation...Mar 26, 2019 · PIMA COUNTY TRANSPORTATION ADVISORY COMMITTEE FY19-20](https://reader035.vdocuments.net/reader035/viewer/2022070108/60366f8a174fc52cb73bf348/html5/thumbnails/5.jpg)
Example Graph:Impact of Funding Levels on Condition
Illustration:Effectiveness Based on PCI-Time Curve
StreetSaver
FINAL PRESENTATION
03/26/2019 Page 5 of 16
![Page 6: TAC StreetSaver PRESENTATION 20190326webcms.pima.gov/UserFiles/Servers/Server_6/File/Government/Transportation...Mar 26, 2019 · PIMA COUNTY TRANSPORTATION ADVISORY COMMITTEE FY19-20](https://reader035.vdocuments.net/reader035/viewer/2022070108/60366f8a174fc52cb73bf348/html5/thumbnails/6.jpg)
Example Graph:Impact of Funding Levels on Deferred Need
Example Graph:Effect of Funding Levels on Backlog
StreetSaver
FINAL PRESENTATION
03/26/2019 Page 6 of 16
![Page 7: TAC StreetSaver PRESENTATION 20190326webcms.pima.gov/UserFiles/Servers/Server_6/File/Government/Transportation...Mar 26, 2019 · PIMA COUNTY TRANSPORTATION ADVISORY COMMITTEE FY19-20](https://reader035.vdocuments.net/reader035/viewer/2022070108/60366f8a174fc52cb73bf348/html5/thumbnails/7.jpg)
Current Network Dashboard
FINAL PRESENTATION
03/26/2019 Page 7 of 16
![Page 8: TAC StreetSaver PRESENTATION 20190326webcms.pima.gov/UserFiles/Servers/Server_6/File/Government/Transportation...Mar 26, 2019 · PIMA COUNTY TRANSPORTATION ADVISORY COMMITTEE FY19-20](https://reader035.vdocuments.net/reader035/viewer/2022070108/60366f8a174fc52cb73bf348/html5/thumbnails/8.jpg)
Current PCI Breakpoints
FINAL PRESENTATION
03/26/2019 Page 8 of 16
![Page 9: TAC StreetSaver PRESENTATION 20190326webcms.pima.gov/UserFiles/Servers/Server_6/File/Government/Transportation...Mar 26, 2019 · PIMA COUNTY TRANSPORTATION ADVISORY COMMITTEE FY19-20](https://reader035.vdocuments.net/reader035/viewer/2022070108/60366f8a174fc52cb73bf348/html5/thumbnails/9.jpg)
Current Decision Tree
FINAL PRESENTATION
03/26/2019 Page 9 of 16
![Page 10: TAC StreetSaver PRESENTATION 20190326webcms.pima.gov/UserFiles/Servers/Server_6/File/Government/Transportation...Mar 26, 2019 · PIMA COUNTY TRANSPORTATION ADVISORY COMMITTEE FY19-20](https://reader035.vdocuments.net/reader035/viewer/2022070108/60366f8a174fc52cb73bf348/html5/thumbnails/10.jpg)
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
FINAL PRESENTATION
03/26/2019 Page 10 of 16
![Page 11: TAC StreetSaver PRESENTATION 20190326webcms.pima.gov/UserFiles/Servers/Server_6/File/Government/Transportation...Mar 26, 2019 · PIMA COUNTY TRANSPORTATION ADVISORY COMMITTEE FY19-20](https://reader035.vdocuments.net/reader035/viewer/2022070108/60366f8a174fc52cb73bf348/html5/thumbnails/11.jpg)
Scenario 1
FINAL PRESENTATION
03/26/2019 Page 11 of 16
![Page 12: TAC StreetSaver PRESENTATION 20190326webcms.pima.gov/UserFiles/Servers/Server_6/File/Government/Transportation...Mar 26, 2019 · PIMA COUNTY TRANSPORTATION ADVISORY COMMITTEE FY19-20](https://reader035.vdocuments.net/reader035/viewer/2022070108/60366f8a174fc52cb73bf348/html5/thumbnails/12.jpg)
Scenario 2
FINAL PRESENTATION
03/26/2019 Page 12 of 16
![Page 13: TAC StreetSaver PRESENTATION 20190326webcms.pima.gov/UserFiles/Servers/Server_6/File/Government/Transportation...Mar 26, 2019 · PIMA COUNTY TRANSPORTATION ADVISORY COMMITTEE FY19-20](https://reader035.vdocuments.net/reader035/viewer/2022070108/60366f8a174fc52cb73bf348/html5/thumbnails/13.jpg)
Scenario 3
FINAL PRESENTATION
03/26/2019 Page 13 of 16
![Page 14: TAC StreetSaver PRESENTATION 20190326webcms.pima.gov/UserFiles/Servers/Server_6/File/Government/Transportation...Mar 26, 2019 · PIMA COUNTY TRANSPORTATION ADVISORY COMMITTEE FY19-20](https://reader035.vdocuments.net/reader035/viewer/2022070108/60366f8a174fc52cb73bf348/html5/thumbnails/14.jpg)
Scenario 4
FINAL PRESENTATION
03/26/2019 Page 14 of 16
![Page 15: TAC StreetSaver PRESENTATION 20190326webcms.pima.gov/UserFiles/Servers/Server_6/File/Government/Transportation...Mar 26, 2019 · PIMA COUNTY TRANSPORTATION ADVISORY COMMITTEE FY19-20](https://reader035.vdocuments.net/reader035/viewer/2022070108/60366f8a174fc52cb73bf348/html5/thumbnails/15.jpg)
Scenario 5
FINAL PRESENTATION
03/26/2019 Page 15 of 16