A friend interned with the Wisconsin DOT. One of his jobs was to review footage from what was earnestly "Google Streetview with higher resolution". Actually Te

A friend interned with the Wisconsin DOT. One of his jobs was to review footage from what was earnestly "Google Streetview with higher resolution". Actually Tesla might have a good dataset to work with since their system relies heavily on vision. Imagine location, timestamp, and sign verbiage sent to a server, if it stops seeing the sign in that area, also return an image next time a Tesla drives by for manual review, and file a maintenance request with the DOT with the click of a button.