Introductory technical guidance for professional engineers interested in air traffic control facilities such as control towers and related buildings for airports and airfields. Here is what is discussed: 1. TERMINAL RADAR APPROACH CONTROL FACILITY (TRACON) 2. AREA CONTROL AND SURVEILLANCE FACILITY (ACSFAC) 3. JOINT CONTROL FACILITY (JCF) 4. AIR TRAFFIC CONTROL TOWER 5. AIR TRAFFIC CONTROL TOWER BASE BUILDING.