> Look in the manual for your car (or pick a random one on the internet and download it). If the headlight stalk has a momentary mode there's a good chance it's literally referred to as "flash-to-pass". It's not aggressive, it's how to communicate a desire/intent to pass to slower traffic.
This is clearly a cultural thing. It doesn't exist where I live, there's no such thing a flash-to-pass, and would actually be illegal to perform here.
> How about bicyclists on a path shared with pedestrians? Funny that, cyclists often have the same problems with pedestrians as drivers have with cyclists. Heck, I'd bet joggers have conflicts with walkers.
I strongly believe that cyclist sharing space with pedestrians need to be patient, slow down and give pedestrians plenty of space. I also believe that cyclist that don't should be vilified. However a big difference between car vs bike and bike vs pedestrian is that car vs bike = dead cyclist, bike vs pedestrian = injured pedestrian and cyclist. Cyclist kill between 0 to 2 pedestrian a year in the US, cars kill over 7000 pedestrians and around 1000 cyclists every year in the US. Cyclist's aren't perfect, but they're 4000x less dangerous than car drivers.
> Slow traffic that is blocking fast traffic on a shared path should attempt to enable safe passing, for everyone's benefit. Sometimes, especially in hilly/mountainous areas, this involves actually pulling over and stopping because there's not enough room to allow for safe passing in motion. It's not unheard of for such roads to have pull-off areas specifically for this purpose. It's courteous and it makes everyone's day better.
I agree it's courteous, and I certainly make an effort to do this. But the arrogance of drivers to demand that vulnerable road users make way for them, and failure to make space is a licence for drivers to injure and kill vulnerable road users is beyond comprehension.