the 48 bus route runs south along 23rd street from brown street to spring garden street, where it turns southeast on pennsylvania avenue to 21st street. from there, it heads south into center city. at market street, it heads east along market to front street. heading out of center city, the 48 runs west bound along arch street to 22nd street, where it turns north. northbound, the 48 travels through the neighborhood on 22nd, crossing spring garden street and fairmount avenue.