Specifications include, but are not limited to: 1. Airside and landside engineering services for planning, environmental, preliminary design, design, bidding and construction phases for airfield projects funded by the Federal Aviation Administration, the Virginia Department of Aviation and the Commission. 2. Potential projects include but are not limited to construction, reconstruction, expansion and rehabilitation of the general aviation aprons, taxiways, and runway and other airside improvements similar in scope. 3. Assist the Commission in evaluating existing airside pavement conditions and creating a plan to address issues discovered during the evaluation. 4. Assist the Commission in maintaining FAA required Pavement Marking and Signage Plan. 5. Assist the Commission in evaluating existing and proposed airspace conditions to include obstruction studies and their impacts on operations at PHF.