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Summary of Comments on the AA/DEIS

The project team compiled a general summary of the comments that were heard during the AA/DEIS comment period. Public comments on the AA/DEIS were accepted for three months from October 17, 2008 through January 17, 2009. These comments were reviewed and considered by the State of Maryland as part of the decision-making process for the selection of the Preferred Alternative for the Purple Line. The comments are all part of the formal public record and will be responded to formally in the Final Environmental Impact Statement. Please note that a more detailed summary and responses to the comments will be included in the Final Environmental Impact Statement.Click here to see what elected officials, community associations and community member said about the Purple Line AA/DEIS. PDF Icon

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 individual sections of the document as an Adobe PDF.

AA/DEIS Document

AA/DEIS Document by Chapter

AA/DEIS Technical Reports


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."

What is the Alternatives Analysis/Draft Environmental Impact Statement (AA/DEIS)?

What is the Alternatives Analysis/Draft Environmental Impact Statement (AA/DEIS)?

The National Environmental Policy Act of 1969 (NEPA) and the Section 106 of the National Historic Preservation Act require any project using federal money to consider the environmental impacts of the project. These include impacts not only to natural resources, but also to neighborhoods, communities, historic sites and cultural resources. NEPA requires presentation of the needs for the project, consideration of reasonable alternatives to address the needs, and documentation of potential impacts, both positive and negative.

These potential impacts of the alternatives under consideration are presented in the AA/DEIS along with information on their benefits and costs. This document also proposes ways to avoid or reduce the possible impacts that could result from the alternatives under consideration. In addition, the AA/DEIS estimates the capital and operating and maintenance costs, the ridership, and cost effectiveness of each alternative. The AA/DEIS for the Purple Line follows the relevant Federal Transit Administration guidelines.

The AA/DEIS was available for public review for 90 days from October 17, 2008 to January 14, 2009. During this time, the MTA accepted and recorded public comments on the document and the project. The State of Maryland considered the public comments in making the decision on which alternative it selected. The Preferred Alternative was selected by Governor O'Malley in August 2009.