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Tappan Zee Bridge/I-287 Environmental Review

Alternatives Analysis, January 2006

The Alternatives Analysis report is also available at the Community Outreach Centers.

Table of Contents

Cover, Summary, Table of Contents (PDF, 2.28 MB)

1. Introduction (PDF, 3.48 MB)

Regional overview
The corridor
History and prior studies
Purpose & need
Goals & objectives
AA process
Public involvement process

2. Level 1 Screening

3. Level 2 Screening

4. Level 2 Screening Results—No Build Scenario (PDF, 3.29 MB)

Transportation Demand Modeling
Travel Surveys
Related projects and trends
No build scenario
TDM/TSM measures
Conclusions

5. Level 2 Screening Results—Highway Scenarios (PDF, 0.98 MB)

General-purpose lanes vs. BRT/HOT lanes
Climbing lane
Conclusions

6. Level 2 Screening Results—Transit Scenarios (PDF, 2.57 MB)

Preliminary evaluation
Transit modal options
Rail freight
Conclusions

7. Level 2 Screening Results-River Crossing Scenarios (PDF, 9.49 MB)

Crossing constraints
Bridge preservation
Bridge rehabilitation
New highway crossing
New commuter rail crossing
Conclusions

8. DEIS Alternatives (PDF, 3.11 MB)

Alternative 1: No Build
Alternative 2: Bridge rehabilitation w/TDM-TSM
Alternative 3: Full corridor bus rapid transit
Alternative 4A: Full corridor commuter rail transit
Alternative 4B: Manhattan-bound commuter rail w/Light Rail in Westchester County
Alternative 4C: Manhattan-bound commuter rail w/Bus Rapid Transit in Westchester County

9. Public Involvement (PDF, 1.72 MB)

Involved parties
Outreach program
Outreach—Level 1 Screening Outcome/Level 2 Screening Process
Outreach—Level 2 Screening Outcome

10. References (PDF, 401 KB)

11. Preparers (PDF, 393 KB)

12. Appendices (PDF, 1.48 MB)

Level 1 screening results
No build projects

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