Group travel has always held a unique appeal, transforming a simple trip into a shared adventure. In an era where efficiency ...

And the American Bus Association, a trade group for companies providing 600 million passenger trips per year, told TSA that front-line workers are trained to watch for threats.

The “bus driver”—an adult on a bike—guides a slowly moving group ride along a predefined route. Kids and their parents join the group on their own bikes when the pack rolls by.