【英文】2021年美国基础设施综合评估报告（172页）

The largest portion of the investment need at large,  medium, and small airports is for terminal buildings and  ranges from 30% to nearly 50% of total needs. Similarly,  the FAA routinely publishes National Plan of Integrated  Airport Systems (NPIAS) reports of anticipated  development activities determined by surveying nationwide  capital improvement plans. The NPIAS reports show that  the needs for various types of airport development projects  continue to increase. Since 2019, forecasts for airport  needs to expand or rehabilitate terminal buildings ballooned  by 62%, pavement reconstruction needs increased by  28%, and capacity-related development needs rose by  31%. 

Specifcally, capital needs for terminal buildings  grew from nearly $4.1 billion to more than $6.6 billion,  capacity projects rose from $3.1 billion to around $4.1  billion, and reconstruction projects increased from  around $13.1 billion to nearly $16.9 billion.12 Fortunately, the condition of runways continues to be  consistent. The FAA sets system performance goals  to ensure that a minimum of 93% of paved runways at  NPIAS airports are maintained in excellent, good, or  fair condition. In fscal year (FY) 2019, data indicates  that 97.9% of runways at NPIAS airports are rated as  excellent, good, or fair, including 97.8% of commercial  service airport runways. While the portion of NPIAS  airports rated as excellent, good, or fair saw a slight  increase from 97.8% in FY 2017, commercial service  airport runways decreased from 98.2% during the  same timeframe. However, both categories remained  unchanged from FY 2015 to FY 2017.