The Green Line is a proposed 4-mile extension of the existing Baltimore Metro service from Johns Hopkins Medical Center to Morgan State University. Please look through our website to learn about the project. The website will be updated with the most recent information as it becomes available. This information will include project mapping, descriptions, presentations, and publications developed by the project team. Additionally please use this site to relay any questions or comments you have directly with the project team, as the Maryland Transit Administration welcomes your comments. Thank you for your interest in the proposed Green Line!