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9 Chapter FOUR DRIVERS, PRIORITIES, AND BARRIERS TO SUSTAINABILITY PRACTICES This synthesis sought to identify drivers, priorities, and bar- Rank Current Future riers for implementing sustainability practices at airports State/Regional Stakeholder Concerns/ 1 and how these might change in the future. Specifically, the Regulations Relations study sought to identify: 2 Airport Policy Global Trends 3 Federal Regulations Airport Policy The main driving forces (present and future) behind sustainability practices. 4 Corporate Responsibility Corporate Responsibility Airports' top priorities for improving sustainability. 5 Stakeholder Concerns/ Federal Regulations The main barriers to implementation of sustainability Relations practices. FIGURE 4 Current and future drivers for sustainability. Future trends. compares the top five current drivers for sustainability prac- Existing and Future Drivers for tices with the top five future drivers identified by the survey Sustainability respondents. As sustainability becomes a bigger issue for the aviation Current Drivers for Sustainability industry, it is important to understand what motivates air- port operators to improve their environmental, social, The survey respondents identified state/regional and federal and economic performance. Changes in behavior can be regulations as key drivers for implementation of sustainabil- attributed to external influences or internal changes in an ity practices at airports, along with airport policies, corpo- organization. rate responsibility, and stakeholder concerns/relations. Table 2 shows the proportion of respondents from different-sized The survey questions related to sustainability drivers airports who selected these five drivers. focused on the motivations behind the sustainability prac- tices already implemented in airports and the drivers for The following were not identified by any survey future practices. Survey respondents were asked to rank the respondents as current drivers for airport sustainability top five drivers (with 1 being the highest) of their sustain- practices: ability practices from the following list: Global trends (e.g., climate change) State/regional regulations City/local regulations Airport policy Aviation Industry Association (e.g., position papers) Federal regulations Economic incentives (e.g., rebates) Corporate responsibility Customers Stakeholder concerns/relations International regulations (e.g., EU directives, City/local regulations International Aviation Authority policies). Global trends (e.g., climate change) Economic incentives (e.g., rebates) Future Drivers for Sustainability International regulations (e.g., European Union direc- tives, International Aviation Authority policies) For the future, global issues such as climate change were Aviation Industry Association (e.g., position papers) identified as the most common drivers for implementation Customers. of airport sustainability practices and programs. This may be closely linked to another key future driver--stakeholder Survey respondents did not select economic incentives, concerns/relations. Airport policies, corporate responsibil- international regulations, or customer satisfaction as key ity, and federal regulations were also among the top five drivers for implementing sustainability practices. Figure 4 future drivers. Table 3 shows the proportion of respon-