Statewide Local Streets & Roads Needs Assessment California Transportation Commission April 15, 2009 - PowerPoint PPT Presentation

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Statewide Local Streets & Roads Needs Assessment California Transportation Commission April 15, 2009 PowerPoint Presentation
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Statewide Local Streets & Roads Needs Assessment California Transportation Commission April 15, 2009

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  1. Statewide Local Streets & Roads Needs Assessment California Transportation CommissionApril 15, 2009

  2. $? Study Objectives • What are conditions of local streets & roads? • How much will it cost to improve/maintain pavements in an acceptable condition? • What are safety, traffic & regulatory needs? • Is there a $$ shortfall? If so, what is it?

  3. Local Streets & Roads are Huge Part of State Network 81% of California’s pavements are owned by cities and counties!

  4. Sidewalks ADA ramps Curb & gutter Storm drains Others It’s Not Just Pavements …

  5. Study Assumptions • 10 year analysis period • Constant 2008 $ • Pavement goal is best mgmt practices • Inclusion of safety, traffic & regulatory elements • Does not include new streets, capital improvements, bridges

  6. No Data 7% of centerline miles Data received 93% of centerline miles Data Collection • Total of 406 agencies • 56 counties • 350 cities • Missing 130 agencies • Mostly small cities • No data • No resources 29% no data 71% data rec’d

  7. Are Data Representative?

  8. Quality Assurance • Validation checks • Lengths – compared with HPMS • Areas – simple checks • Math errors • Mismatched units • Tests of reasonableness • Made follow-up calls/emails – only medium/large agencies

  9. How Good Are Pavement Data?

  10. Quality of Safety, Traffic & Regulatory / $$ Data • Safety, traffic & regulatory • 188 partial, 58 complete • Funding/expenditures • 29 counties & 108 cities responded

  11. Pavement Condition Index 100 Good - Excellent 70 At Risk 50 Poor 25 Failed 0

  12. Statewide Average PCI = 68

  13. $2/sy 68 $15-40/sy $40-70/sy $60-100/sy Why is 68 Critical?

  14. Pavement Condition Index 70-100 (Good/Excellent) 50-69 (At Risk) 25-49 (Poor) Average County-wide PCIs All green counties have a PCI <80

  15. Needs Calculations • Pavement condition goal = reach best management practices in 10 years • M&R decision tree • Performance (prediction) models • Escalation factors • Calculate “biggest bang for the buck” i.e. optimization

  16. Funding Sources

  17. $79B 68 (at risk) PCI Backlog ($ billion) 48 (poor) $37B 2008 2033 What Happens If We Don’t Get More Funding?

  18. What Happens If We Don’t Get More Funding?

  19. 38 cents/gallon! 38 cents/gal Total 10 Year Shortfall ($B)

  20. Summary • Good News • Data received represents 93% of local system • Statewide average PCI = 68 • Gas is $2.25/gallon today • Not so good news • PCI = 68 is at risk category & drops to 48 by 2033 with existing funding • Need to more than double existing funding to maintain transportation assets

  21. Questions? Contact Margot Yapp, P.E. Vice President/Principal Nichols Consulting Engineers, Chtd. myapp@nce.reno.nv.us