Earlier quoted context omitted.
> The main difference between Waze and Google Maps is that Waze uses real time traffic data. Google Maps has real time traffic data and the accuracy is staggering. I occasionally use Google Maps for navigation in the car and it even highlights traffic stationary at traffic lights and temporary road works as I’m approaching. This level or real time detail really amazed me. I’ve not spent any time looking onto how they…
I've seen Google Maps claim that a specific 500-foot stretch had a traffic jam when there were, in fact, no cars on it or anywhere near it besides mine.
Just a guess, but perhaps the only other map users had pulled over to the side and stopped. Google may have interpreted that as a traffic jam and you didn’t see them. I’m not arguing a point, it’s just a thought as to how that may happen.