Opinion: level 5 autonomy would be cool, but it's not where most of the value of self-driving cars is.
Most of the value in being able to travel by auto without attention is in trips longer than 15 minutes. Commutes, tourism, vacations. Shipping. Most of which is certainly highway driving.
If it's possible to automate highway driving under most conditions (and safely transition either to a stop or human-piloting when those conditions aren't met), then at least 80% of the value is there.
Wrestling with the harder edges of the problem is still the right thing to do for tolerance reasons, but I hope we don't have to see last-mile problems solved before we start reaping the benefits.
Most of the value in being able to travel by auto without attention is in trips longer than 15 minutes. Commutes, tourism, vacations. Shipping. Most of which is certainly highway driving.
If it's possible to automate highway driving under most conditions (and safely transition either to a stop or human-piloting when those conditions aren't met), then at least 80% of the value is there.
Wrestling with the harder edges of the problem is still the right thing to do for tolerance reasons, but I hope we don't have to see last-mile problems solved before we start reaping the benefits.