Two new sections of trails have opened in Philadelphia in the past two weeks. As Philadelphians are getting started running, biking and strolling on the Penn Street trail -- a section of the Delaware River Trail north of Spring Garden Street that just opened Monday -- and the 58th Street Greenway -- a 1.5-mile path connecting Cobbs Creek Park and Bartram's Garden in Southwest Philly -- we took a look ahead at other trails being planned for the city.