Meet DDOT's Robot, Which They Promise Won't Give You a Parking Ticket - Washingtonian
Briefly

"Normally, there are hundreds of our staff that, every year, go out into the streets to make sure the signs are correct. This is just an added component to make sure that we're able to maintain it." - German Vigil, DC Department of Transportation spokesperson.
"What if it runs us over on the sidewalk or veers into oncoming traffic? Not to fret...There's always a DDOT employee monitoring the robot's progress..." - German Vigil.
Read at Washingtonian - The website that Washington lives by.
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