DEIS - The Purple Line

AA/DEIS Released!

The Purple Line's Alternatives Analysis/Draft Environmental Impact Statement (AA/DEIS) was released on October 17, 2008.

Please visit the AA/DEIS page to review the document.

AA/DEIS Public Hearings Held!

The MTA held four public hearings along the proposed Purple Line corridor in November.

View the boards that were presented.

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AA/DEIS Document

The AA/DEIS presents the project’s purpose and need, analysis of the various alternatives and environmental considerations.

Choose a link below to view that section of the document as an Adobe PDF.

AA/DEIS Document

AA/DEIS Document [37201 KB]
Executive Summary [703 KB]

AA/DEIS Document by Chapter

Cover [208 KB]
Signature Page [1111 KB]
Table of Contents [46 KB]
Preface [124 KB]
Executive Summary [721 KB]
Chapter 1 - Purpose and Need [1613 KB]
Chapter 2 - Alternatives Considered [3259 KB]
Chapter 3 - Transportation and Traffic [748 KB]
Chapter 4 - Environmental Resources, Impacts, and Mitigation [25217 KB]
Chapter 5 - Costs and Funding [123 KB]
Chapter 6 - Evaluation of Alternatives [126 KB]
Glossary and Acronyms [1201 KB]
References [246 KB]
List of Recipients [85 KB]
List of Preparers [121 KB]

AA/DEIS Technical Reports

Air Quality Technical Report [4960 KB]
Architectural History Technical Report [6926 KB]
Capital Cost Estimating Methodology Technical Report [1097 KB]
Conceptual Plans Technical Report [65370 KB]
BRT Alternatives
- Low Investment Option [11816 KB]
- Medium Investment Option [13678 KB]
- High Investment Option [20220 KB]
LRT Alternatives
- Low Investment Option [24994 KB]
- Medium Investment Option [15040 KB]
- High Investment Option [20222 KB]
Definition of Alternatives Technical Report [5482 KB]
Energy Technical Report [428 KB]
Geotechnical Data Technical Report [85429 KB]
Hazardous Materials Technical Report [9124 KB]
Natural Resources Technical Report [30361 KB]
Noise and Vibration Technical Report [1404 KB]
Operating and Maintenance Cost Estimate Technical Report [491 KB]
Phase Ia Archaeological Assessment Survey Technical Report [3376 KB]
Preliminary Section 4(f) Evaluation Technical Report [6327 KB]
Public Outreach and Coordination Technical Report [42112 KB]
Socioeconomic Technical Report [15016 KB]
Traffic Analysis Technical Report [8345 KB]
Travel Demand Forecasting Technical Report [1288 KB]

Please note: Some of the files are quite large. Please be patient as they download. If you would like to save the document to your computer for future reference, right click on the link and choose "Save Link As..." from the context menu. When the file browser window appears, select the location on your computer where you would like to save the file and press "Save."

Comment on the AA/DEIS

Thanks for your Comments!

The comment period for the Purple Line Project Alternatives Analysis/Draft Environmental Impact Statement (AA/DEIS) is now closed. Throughout the comment period we received a great number of comments through email, our website, written comments, and by the testimony submitted at the Public Hearings.

The Maryland Transit Administration (MTA) appreciates your input on the proposed Purple Line. All comments will become part of the official record and be included in the Final Environmental Impact Statement.

We appreciate your interest in the project and look forward to working with everyone throughout the Purple Line planning process.