With last week's commercial release of the Navia, I thought I would release a new essay on the challenges of driving robocars at different speeds.

As the Navia shows, you can be safe if you're slow. And several car company "traffic jam assist" products say the same thing. On the other end, we see demos taking place at highway speeds. But what about the middle range -- decent speeds on urban streets?

Turns out that's one of the harder problems, and so there is a "valley" in the chart which makes safe operation harder in that zone.

So read my more detailed essay on these challenges: The Valley of Danger for Robocars