Step 4. Use the Travel Utility Analysis tool
With the Travel Utility Tool open in a browser page, users have the freedom to modify the values of input variables and observe real-time updates in the catchment area map of CAK airport.
The tool consists of five tabs. The first tab, labeled ‘Info,’ provides an overview of the tool along with essential background information. The remaining tabs, namely ‘Trip,’ ‘Airfares,’ ‘Flying Time,’ and ‘Parking,’ are designed to capture user inputs for variables that can influence travelers’ choice of departing airports. As these input values change, the attractiveness of the subject airport (in this case, CAK) to travelers will also change, thereby affecting the size and shape of the airport catchment area.
In the ‘Airfare,’ ‘Flying Time,’ and ‘Parking’ tabs, the input variables for competing airports are initially set at arbitrarily large numbers. This modeling approach intentionally reduces the attractiveness of those competing airports to a level where travelers are unlikely to select them as departure airports for their trips. Users are advised to maintain these default values for competing airports if they wish to exclude them from the analysis or if there are no flight options available at those airports. Users should provide input only for the subject airport and the competing airports they want to include in the analysis.