My car has the acoustic/visual warning, but I have to enable it manually. It’s less useful than one would think… I basically only turn it on in cities where th

My car has the acoustic/visual warning, but I have to enable it manually. It’s less useful than one would think… I basically only turn it on in cities where the limit is 30km/h, which was typically enacted to reduce noise or pollution (i.e. not necessarily for safety reasons). Even there, if the road’s not flat, it’s guaranteed that one will lightly go over the speed limit, at which point this feature becomes super-annoying. I was driving downhill recently in an area with a speed limit of 30 and everyone was driving 5-10 over and slowing down for the radar. I turned the feature off as it was beeping constantly. Another problem is figuring out what the actual limit is. This is done typically through map data and camera (which overrides the map data). This traffic sign recognition usually works, but sometimes picks up the wrong speed from e.g. a motorway exit or adjacent street. Recognizing additional signs such as “when raining”, between specific hours, etc still needs improvement. Such mistakes would cause a braking implementation to misfire and potentially endanger traffic. I’ve found that when using the feature where the speed limit’s higher I have to set it 3-5km/h higher than the limit in order to be able to drive normally.