[kube-system]

I strongly disagree. I can think of a ton of reasons why a driver may need (or even be legally required) to know their speed regardless of speed limit:

* when speed restricted by equipment (trailer, temporary spare, etc)

* when observing advisory speeds

* when observing minimum speed requirements

* as a reference for judging appropriate speeds under inclement conditions

* as a reference for judging appropriate acceleration/deceleration rates when entering/exiting the roadway

[jedberg]

Of course an alert system would have to be able to understand all those things. That's why we don't have that kind of system.

A single number in isolation is rarely useful. Graphs with trends are useful. Alerts are useful.

The only reason we don't have alert based speeds is because it can't get all the necessary information to make a useful alert, so we compromise by telling you the number.

> as a reference for judging appropriate acceleration/deceleration rates when entering/exiting the roadway

A perfect example of why a graph would be ideal here, not a single number.

[kube-system]

> reference for judging appropriate acceleration/deceleration

> perfect example of why a graph would be ideal

A gauge chart, maybe? :D

But seriously, if we have a system that appropriately judges everything on my laundry list above, you probably won't need an alert system anymore because the cars will be self-driving.