Floating Freight

Wizards pride themselves on working smarter not harder. Wizards also play the long game. This means that if there is hard work to be done now that will pay off later, a wizard will entertain the idea.
When it became apparent that the new world would take a considerable amount of work to build in the Penta Caelum's image, they needed to think ahead.
It became daily curriculum to have new academy students help with repetitious spell casting. By casting these spells daily, certain spells could be given permanency. It also taught the students valuable lessons that with repetition and practice, on could improve their abilities. The outcome was easy to see and the fruits of their labor were right there before their eyes.
A simple adjustment to a floating disk spell that anchored the disk to a lodestone instead of the caster allowed the academy to become a production line. Over the next couple of years, thousands of permanent floating disks were created and strung together with the anchoring lodestone affixed to the disk in front of the one behind it, with the first set of lodestones on the back of an armored carriage.
Shipping freight became an industry. Tens of thousands of pounds of materials, goods, food, or even people, could be ferried by a couple horses and a handful of people for security.
Before long there were regular routes between major cities and the sight of hundreds of disks strung together carrying various shipments became commonplace.  It was novel at first to be caught on the wrong side of the floating freight. The glamour wore off and people soon would become irked to have missed their window to get by on their way to where they were going. They were stuck watching each disk, in a seemingly endless string, float by, one-by-one.  The pace that was once astounding as to how fast so much could be moved so easily, now, an agonizing crawl making them late for their day.