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Traffic and Revenue Analysis for the San Diego Freeway (Interstate 405) Project

Traffic and Revenue Analysis for the San Diego Freeway (Interstate 405) Project. Orange County Transportation Authority Citizens Advisory Committee March 16, 2010. Interstate 405 Project. Study Alternatives. Add one lane each way ($1.7 billion) Add two lanes each way ($1.9 billion)

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Traffic and Revenue Analysis for the San Diego Freeway (Interstate 405) Project

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  1. Traffic and Revenue Analysis for theSan Diego Freeway (Interstate 405) Project Orange County Transportation Authority Citizens Advisory Committee March 16, 2010

  2. Interstate 405 Project

  3. Study Alternatives • Add one lane each way($1.7 billion) • Add two lanes each way($1.9 billion) • Available funding <$600 million • Alternatives not currently funded

  4. Added Alternatives • Nominal improvements within available funding ($600 million) • Two-lane Express Lane toll facility ($2.2 billion)

  5. Express Lanes Lane Diagram HOV Lane 4 Existing GP Lanes Express Facility New Exist. HOV New GP 4 Existing GP Lanes Express alternative: accommodates both HOV and toll operations improves mobility in GP lanes may fund other improvements

  6. Expected PM Peak Speeds Speed in MPH 2 Express Lanes 1 HOV Lane 1 HOV Lane 6 GP Lanes 1 HOV Lane 1 HOV Lane 5 GP Lanes 5 GP Lanes 1 HOV Lane 4 GP Lanes 4 GP Lanes 4 GP Lanes Today 2015No Improvements 2035 No Improvements 2035 Add One Lane 2035 Add Two Lanes 2035Express Lanes *Based on estimates, further study required.

  7. Traffic and Revenue Study • Phase 1 - indicates financial viability, based on existing traffic data and model • Phase 2 - more refined traffic and revenue estimation to be initiated later in environmental phase • Phase 3 - investment-grade analysis

  8. Proposed Access Points

  9. Annual Revenue Forecasts

  10. Supported Construction Costs

  11. Express Lanes Financial Viability Alternative 3: Express Lanes • Funding gap $2.2 billion - $600 million = $1.6 billion • Revenue potential range • HOV 2+ Free $0.3 billion -$0.5 billion • HOV 3+ Free $1.4 billion -$1.8 billion

  12. Re-cap of Progress to Date • One and two lane alternatives can generally fit within existing ROW • Express lanes alternative could provide needed funds • Four public scoping meetings conducted • Good attendance (400+) • Active Q&A sessions • Concerns remain about local ROW impacts

  13. Next Steps • Prepare environmental technical studies on the build alternatives • Return to Board to discuss: • Preliminary findings from environmental studies • Potential reduction in number of build alternatives • Operating scenarios for Express Lanes

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