As city roadways get more and more crowded, it is my belief that designs such as Cal Craven's City Aquatic Transportation (CAT) will become more commonplace. The CAT is a small, enclosed boat designed to automatically ferry passengers around the city.
The CAT has a unique look and color scheme that almost makes it look as if it is a police boat. Passengers won't be catching criminals unless they choose to, however. While CAT is designed with automated controls, there is an option to manually control the craft. This has been added to open up the craft to tourists who might want to explore the city waterways on their own. Traveling by vehicle in some of the world's biggest cities is already a hassle, which is why it shouldn't be too long until we're all waiting in line to catch the next CAT across town. Mark my words.