sentences:  Roanoke County hired the Philadelphia-based firm of Wallace Roberts & Todd in July 2015 after evaluating four bids to develop a master plan for the next twenty years of park development.Over the next five years, the County intends to embark on a capital improvement plan to bring utilities to the Park and improve park roads.The historical area within Explore Park is home to dozens of 18th- and 19th-century buildings relocated from their original locations and reconstructed on-site.