Which pipes did the sewer inspection robot not get to see?

There is a whole robot world under the street. PIPEON is developing machines to inspect sewers, remove blockages and install flow monitors, with AI-supported tools to help utilities decide where work is needed. Its September project update describes planned evaluations, including in Heusden, where large runoff areas put pressure on sewer capacity. Those are development plans, not demonstrated reductions in flooding. I'd want the inspection map to make the unseen stretches obvious. A pipe the robot could not reach should look different from a pipe it inspected and found clear. If water or debris hid the view, keep that gap on the map rather than letting a completed robot trip suggest a completed inspection. These are reporting requirements I'd ask for, not failures the project documents. That matters when a crew has limited time before heavy rain. A clean-looking map could send them past the place nobody has actually checked. Finding a blockage early would be wonderful; showing where we still don't know could be just as useful. If you were deciding which street to check next, would that map tell you where the robot had been—or what it had genuinely ruled out?