Complete transaction with ticket machine. Point out large A by map, B by buttons, etc. Couple goes back to worrying in front of next ticket machine. Recall study on data base interface. Super-deluxe is natural language interface.
Results show no benefit from any system.
Become very depressed. It looks to me like there is another risk here. There is simply no excuse for spending this much money on such a system. Alas, in many big cities, if you want a police officer to appear at the scene, you MUST dial 911. The result is that there is a fair amount of machinery keeping track of a call to the police.