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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

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

Orange County Transportation Authority

Citizens Advisory Committee

March 16, 2010

study alternatives
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
added alternatives
Added Alternatives
  • Nominal improvements within available funding ($600 million)
  • Two-lane Express Lane toll facility ($2.2 billion)
express lanes lane diagram
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

slide6

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.

traffic and revenue study
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
express lanes financial viability
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
re cap of progress to date
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
next steps
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