for a significant length, the other being Chicago's North Side Main Line from Armitage north, used by Purple Line express trains. During early 2020, the line operated "Lifeline Service" due to the COVID-19 pandemic in Pennsylvania. From April 2020, trains bypassed the , , , , , , , and stations. All stations were reopened by July 2020. In September 2021, SEPTA proposed updating wayfinding across the SEPTA Rail Transit network. Part of the proposal, SEPTA proposed rebranding their rail transit service as "SEPTA Metro", in order to make the system easier to navigate. Under this proposal, services along the Broad Street Line will be rebranded as the "B" lines with an orange color. Each service utilizing the trunk would receive a numeric suffix. Local service would be known as the B1 Broad Street Local, the express and special service as the B2 Broad Street Express and B2 Express Sport Special, and the Broad–Ridge Spur as the B3 Broad–Ridge Express. Following public feedback, SEPTA revised the Wayfinding Master Plan. Rather than being referred to as the B Lines, the current Broad Street Line would become the B Line. Express and special services would be consolidated into the B2 Broad Street Express, with signage letting riders know whether a train terminates at Walnut–Locust or NRG station. Additionally, SEPTA stated they would pilot neighborhood maps in stations and prioritize the deployment of real-time information signage and on mobile apps. Proposed extensions Roosevelt Boulevard Both the City of Philadelphia and SEPTA have studied extending the Broad Street Line along Roosevelt Boulevard, in order to serve a growing population in the northeast section of the city. The city government's archives contain a survey report, prepared in 1948, discussing a need for an extension of the Broad Street line from Erie Avenue to the vicinity of Pennypack Circle (see Roosevelt Boulevard). Subway car destination signage even included station and terminus names for major streets along Roosevelt Boulevard such as Rhawn Street, in the newer "South Broad" cars. An expansion into another part of the City could better use the capacity of the four-track trunk line. In 1964, the city proposed a nine-mile (14 km), $94 million extension of the Broad Street line along Roosevelt Blvd. in conjunction with a new Northeast Expressway to be built by the Pennsylvania Department of Transportation. Development was limited to the building of one subway station by Sears, Roebuck and