There have been many changes in Philadelphia since the 1950s: the renovation of Society Hill, the Chestnut Street Transit Way, Penn Center, Galleries 1 and 2, and Penn's Landing. Barbara Kaplan is the current Executive Director of the Philadelphia Planning Commission. Prior to attaining the role, she served for eight-and-a-half years on the commission in various roles, and for planning agencies in Dallas/Fort Worth, San Diego, and Los Angeles.