None of the eight passengers aboard the driverless vehicle suffered injuries and neither did the truck driver. Instead, the front bumper of the shuttle took the brunt of the damage. A spokesperson for AAA, which is sponsoring the latest pilot program, said on Twitter that the accident was due to "human error" on the part of the truck driver.

Truck making delivery backed into shuttle, which was stopped. Human error causes most traffic collisions and this was no different. Driver of truck was cited. No one hurt except a bruised bumper! — Mike Blasky (@blasky) November 8, 2017

A representative of the Las Vegas City government also posted a note on its official Tumblr page detailing the accident. "The autonomous shuttle was testing today when it was grazed by a delivery truck downtown," reads the post. It continued: "The shuttle did what it was supposed to do, in that its sensors registered the truck and the shuttle stopped to avoid the accident. Unfortunately the delivery truck did not stop and grazed the front fender of the shuttle."

Simply stopping obviously wasn't enough to evade a collision in this case, which begs the question: Can the shuttle not move (or reverse) to avoid an object, even when the object is crawling towards it? KSNV News 3's Kyndell Nunley posed that question to a representative of Keolis, the French private transportation company that owns Navya. He replied: "It's designed to stop.. and yield to the moving object... But, if the moving object keeps coming toward the shuttle it can back up, but apparently in this case the truck just kept on going, and went right in to the side of the shuttle."

The trial is set to continue, but the incident will do little to ease the concerns of those skeptical about self-driving cars. The free autonomous shuttle service was the first of its kind in the US. In addition, Navya's 15-passenger Arma vehicles are also the stars of a similar program at the University of Michigan, and its tech will soon start powering driverless taxis (that can reach a top speed of 55 MPH). Let's hope the company learns from this incident, and the remainder of the testing.