Specifications include, but are not limited to: Planning and/or design of new facilities or the upgrade/rehabilitation of existing facilities including, but not limited to, the following airport systems: runways, taxiways and apron pavements drainage airfield lighting, signing and marking electrical power and communications computer control/monitoring of airfield lighting and navigation aids. May also be responsible for performing special studies investigating pavements, lighting, airspace penetrations, safety area improvements, taxiway/runway aircraft clearance areas, obstacles in approach surfaces, and de-icing as well as providing technical reports quantifying environmental impacts to support environmental permitting, if necessary