Pavement Data Collection, Rating History, and Pavement Management - - PowerPoint PPT Presentation

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Pavement Data Collection, Rating History, and Pavement Management - - PowerPoint PPT Presentation

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City of San Antonio Pavement Data Collection, Rating History, and Pavement Management Program Transportation & Capital Improvements Presented by: Anthony Chukwudolue, P .E., Deputy Director Texas Municipal League October 9, 2019 San

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Transportation & Capital Improvements

Presented by: Anthony Chukwudolue, P .E., Deputy Director

Texas Municipal League October 9, 2019

City of San Antonio

Pavement Data Collection, Rating History, and Pavement Management Program

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San Antonio Pavement Management

2

  • Overview of the Network
  • Condition Assessment & Project Selection
  • Network Condition
  • Maintenance Strategy & Funding
  • Outcomes
  • Challenges
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Street Network Information

Council District CLM District 1 464 District 2 481 District 3 472 District 4 368 District 5 401 District 6 392 District 7 391 District 8 360 District 9 371 District 10 455 Grand Total CLM 4,155

  • 4,155 centerline miles (CLM)
  • Majority of streets in the network are asphalt or

flexible pavement – The Central Business District is a mixture of brick pavers and asphalt paved roads

  • Identified streets are rehabilitated by:

– In-House Forces (City) – Local or residential – Contractors – Collectors or arterials

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The Amazon River

4,121 S Street treet M Miles es

Equivalent to Length

  • f World’s

Longest River

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  • Condition Assessment – Initially being

completed 1/3rd of the City annually - 2016

  • 2019 – entire network assessment survey

being done in one year

  • Automated survey utilizes advanced

technology to assess pavement surface and classify distresses per ASTM-D6433-11

  • Data captured: Surface distresses - cracking,

raveling, depressions

  • Data is managed in Cartegraph

Network Condition Assessment

DTS Mobile Asset Collection Van

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Street Maintenance Program Street Selection

Cartegraph (Pavement Maintenance Management Software) is used to analyze budget scenarios, select projects and applications based on the Pavement Condition Index (PCI) Other components evaluated include:

  • Street classification (local, collector, arterial)
  • Multi-modal component (bus route)
  • Service requests (311 system)
  • Development density (urban, suburban, rural)
  • Coordination with utilities

SMP Project Selection

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Street Network Condition

Excel cellen ent Good

  • od

Fa Fair Poor

  • or

Failed

38% 24% 14% 14% 10%

Grade = A (PCI 86-100) Grade = B (PCI 71-85) Grade = C (PCI 61-70) Grade = D (PCI 41-60) Grade = F (PCI 0-40)

Minimal al Mainte tenance (Cr Crac ack S Seal al/Fog Seal al) Micro-sur surfacing ng Slurry ry S Seal al Mill ll & & Overlay Mill ll & & Overlay with h Base Repa epair Reco const struction & & Reclam amation

1,011 Centerline Miles 1,213 Centerline Miles 597 Centerline Miles 791 Centerline Miles 385 Centerline Miles

4,155 Centerline Miles

Rehabilitation Preservation

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Pavement Performance & Cost

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PCI Grade Maintenance Type Cost/Centerline Mile 86-100 A Minimal Maintenance (Crack Seal/Fog Seal) $15,000 $75,000 71-85 B Slurry Seal or Microsurfacing $ 113,000 $178,000 61-70 C Mill & Overlay with 20% Base Repair $ 427,000 41-60 D Mill & Overlay with 40% Base Repair $ 553,000 0-40 F Reconstruction/Reclamation $ 1,650,000 $2,100,000

YEARS

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Street Maintenance

Maintain roadway network at an average Pavement Condition Index (PCI) of 70 or above.

Goal

 Pavement Preservation

  • Crack, Fog & Slurry Seal
  • Microsurfacing

 Rehabilitation

  • Mill & Overlay
  • Full Depth Reclamation
  • Reconstruction

Programs

 Pavement Condition

Prioritization

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Annual Funding

($ in Millions)

$33 $31 $33 $35 $40 $35 $41 $64 $64 $99 $110 $110

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2018-2019 Street Improvement Strategy

 By completion of FY 2019 SMP in March 2020, all districts projected to have average PCI score above or at 70  More than 760 miles of roadways maintained (475 miles in Council Districts with low PCI)

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Equity-Based Street Maintenance Funding

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Two-Year Street Maintenance Delivery

APPLICATION AMOUNT

12 MONTHS

In-House Program

$12.4M

12 MONTHS

Contract Rehabilitation

$72.6M

24 MONTHS

Contract Reclamation & Reconstruction

$25.0M TOTAL $110.0M

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Funding Provided for Network Maintenance

Fiscal Year Budget Total Preservation (Miles) Total Rehabilitation (Miles)

Total Miles

2017 $64M 155.38 110.74

266.12

2018 $99M 227 161.6

388.6

2019 $110M 207.79 158.89

366.68

Miles Maintained from 2017 to 2019

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$64 $64 $99 $110 $110 71.10 71.54 72.80 73.62 74.71

63 64 65 66 67 68 69 70 71 72 73 74 75 76 $20 $40 $60 $80 $100 $120 $140

2016 2017 2018 2019 2020

P C I Budget in Millions

Fiscal Year

Total SMP Investment vs Average Roadway PCI

Budget PCI

Citywide Network Average PCI from 2016 to 2020

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Current Challenges

  • Refine SMP & Bond Programs to

accelerate the reconstruction of “F” Streets

  • Work with local contractors to optimize

program delivery recognizing material constraints and crew availability

  • Explore new technology & materials to

enhance pavement performance

  • Refine and optimize project selection

criteria and equity funding to be more impactful in areas with greatest needs

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Transportation & Capital Improvements

Presented by: Anthony Chukwudolue, P .E., Deputy Director

Texas Municipal League October 9, 2019

City of San Antonio

Pavement Data Collection, Rating History, and Pavement Management Program