Isn’t this what the volume on your sound system is supposed to do? Master volume in a game should be pretty much maxed out by default and the volume on whatever you use to output the sound should be set so loud isn’t blowing your ears out.
Unless you are actually complaining about sound levels of stuff that shouldn’t be loud (like menu clicking or background music) but that’s relative sound levels of different categories in the game, not the master volume.
Those cameras only activate when people run a red light, right? And if they don’t, that’s the problem that should be fixed, not taking down the whole thing instead. People following the rules and not endanger others is kinda a good thing.