; (7) the impact to passengers and airports of indexing the passenger facility charge for inflation; (8) how long airports are constrained with current passenger facility charge collections; (9) the impact of passenger facility charges on promoting competition; (10) the additional resources or options to fund terminal construction projects; (11) the resources eligible for use toward noise reduction and emission reduction projects; (12) the gap between the cost of projects eligible for the airport improvement program and the annual Federal funding provided; (13) the impact of regulatory requirements on airport infrastructure financing needs; (14) airline competition; (15) airline ancillary fees and their impact on ticket pricing and taxable revenue; and (16) the ability of airports to finance necessary safety, security, capacity, and environmental projects identified in capital improvement plans. (d) Large hub airports The study shall, to the extent not considered under subsection (c), separately evaluate the infrastructure requirements of the large hub airports identified in the National Plan of Integrated Airport Systems (NPIAS). The evaluation shall— (1) analyze the current and future capacity constraints of large hub airports; (2) quantify large hub airports’ infrastructure requirements, including terminal, landside, and airside infrastructure; (3) quantify the percentage growth in infrastructure requirements of the large hub airports relative to other commercial service airports; (4) analyze how much funding from the airport improvement program (AIP) has gone to meet the requirements of large hub airports over the past 10 years