摘要: |
The Department of Defense (DoD) proposes to construct a Digital Airport Surveillance Radar (DASR) system at Columbus Air Force Base (AFB) in Mississippi. This proposed action is part of the National Airspace System (NAS) Program, developed by the Federal Aviation Administration in cooperation with the DoD to modernize approach control systems in the United States and its territories. DASR is a DoD-lead contract to replace analog air traffic control systems with state-of-the-art digital air traffic control equipment on U.S. Anny, U.S. Navy, and U.S. Air Force bases throughout the country. The implementation of the NAS program, which also includes the installation of DoD Advanced Automation System digital radar display terminals and Voice Communications Switching Systems at DoD bases, was previously evaluated in a programmatic Environmental Assessment and Finding of No Significant Impact (1995). The environmental assessment for Columbus AFB addresses the site- specific impacts of locating a DASR system on Columbus AFB, and evaluates the consequences of the DASR system construction on both the natural and man-made environments. The Automation System and Voice Switch components of the NAS program at Columbus AFB would be located within existing buildings, and impacts are anticipated to be minor. The primary consequences of the DASR system evaluated in the environmental assessment involve the construction and operation of a DASR system on Columbus AFB. The proposed DASR system, designated as model ASR -11, is needed to replace the existing AN/GPN- 20 airport surveillance radar at Columbus AFB. The ASR-11 will improve system reliability, provide additional weather data, reduce maintenance cost, improve performance, and provide digital data input to proposed new digital automation system air traffic controller displays. The ASR-11 will take advantage of the significantly increased capabilities of digital technology. |