Engineers have already designed vehicles capable of shuttling pizzas, packages, and public transit passengers without a driver present. But few have considered how this technology can be used to transport our most precious cargo: kids. Though most parents would be hesitant to send their children on a bus with no one in the driver's seat, one design firm believes autonomous vehicle technology can change their rides for the better. Their new conceptual project, called Hannah, illustrates their ideas for the future of school bus travel.

As Co.Design reports, Seattle-based design firm Teague tackled both the practical challenges and the social hurdles when designing their driverless school bus. Instead of large buses filled with dozens of kids, each Hannah vehicle is designed to hold a maximum of six passengers at a time. This offers two benefits: One, fewer kids on the route means the bus can afford to pick up each student at his or her doorstep rather than a designated bus stop. Facial recognition software would ensure every child is accounted for and that no unwanted passengers can gain access.

The second benefit is that a smaller number of passengers could help prevent bullying onboard. Karin Frey, a University of Washington sociologist who consulted with the team, says that larger groups of students are more likely to form toxic social hierarchies on a school bus. The six seats inside Hannah, which face each other cafeteria table-style, would theoretically place kids on equal footing.

Another way Hannah can foster a friendlier school bus atmosphere is inclusive design. Instead of assigning students with disabilities to separate cars, everyone can board Hannah regardless of their abilities. The vehicle drives low to the ground and extends a ramp to the road when dropping off passengers. This makes the boarding and drop-off process the same for everyone.

While the autonomous vehicles lack human supervisors, the buses can make up for this in other ways. Hannah can drive both backwards and forwards and let out children on either side of the car (hence the palindromic name). And when the bus isn’t ferrying kids to school, it can earn money for the district by acting as a delivery truck.

Still, it may be a while before you see Hannah zipping down your road: Devin Liddel, the project’s head designer, says it could take at least five years after driverless cars go mainstream for autonomous school buses to start appearing. All the regulations that come with anything involving public schools would likely prevent them from showing up any sooner. And when they do arrive, Teague suspects that major tech corporations could be the ones to finally clear the path.

"Could Amazon or Lyft—while deploying a future of roving, community-centric delivery vehicles—take over the largest form of mass transit in the United States as a sort of side gig?" the firm's website reads. "Hannah is an initial answer, a prototype from the future, to these questions."

[h/t Co.Design]