>My opinion as a cyclist is that I should basically only be using my bell on pedestrians when the pedestrians are wandering onto the bike lane. If im cycling through a shared space, I find it extremely rude to ring the bell, because it feels like I'm telling people to get out of my way, but they have just as much right to a shared path as I do.

The culture around this varies a lot. I'm in Melbourne, Australia. Virtually all bike paths are "shared", and many have signs telling you to ring your bell when approaching pedestrians - you're not telling them to move out of the way, you're telling them that you're there.

In practice, I tend to use one ding to mean "I'm here" and multiple dings to mean "you're on the wrong side of the path and need to move".

But in no situation do I rely on a bike bell to avoid an accident.

My solution to this is that I ring my bell when I'm far from people, usually twice while I'm still a fair way away. It just gets pedestrians conscious that there's a bike around, while also being far enough away that it's not going to surprise them and I don't think they assume it's an aggressive bell.

My least favourite is when a cyclist speeds past and shouts "on ya right" (I'm in Australia) but they shout it when they're so close that there's no chance of hearing and understanding in time.

Agreed.

I saw one recently where the cyclist shouted out something like, "ON YOUR LEFT!" and all it did was startle the crap out of a jogger who spun around into the path of the bicycle. Luckily just a close call. That cyclist's "warnings", with no time for pedestrians to react properly, were really just a game of Russian roulette. (And really rude, as you say).

> Some cyclists ring their bells because they're worried a pedestrian might suddenly turn into their path,

This is wrong - on mixed use paths, it is customary and proper to announce "on your left" when passing, and a bell is a nice alternative. Even cycling slowly pedestrians can do some very erratic things, and moreover are very surprised when cyclists suddenly appear on their left (and may do something dumb in surprise!).

> A horn or bell is mostly for telling other people "hey I'm here, stay out of my way and dont suddenly cross into my path"

This. I only use the bell on bike paths, too. Sometimes it feels like a game of pac-man, where baddies will wander into my path from all directions and in all kinds of ways. Cars doing a right turn, zombies staring into phones, people walking backwards (!), zombies staring into phones walking backwards, it doesn't end.

It's essential on narrow shared paths e.g. a canal towpath, when you're approaching a pedestrian from behind in order to avoid startling them when you pass.

Most people walking the canal towpath around here know this, runners in particular will sometimes be give a wave or visual acknowledgement they've heard you without turning around.

> If im cycling through a shared space, I find it extremely rude to ring the bell, because it feels like I'm telling people to get out of my way, but they have just as much right to a shared path as I do.

It’s certainly rude to ring the bell in a aggressive manner, but many bells are capable of producing much softer, more polite sounds.

In super busy old European capitals I find that people increasingly just ride around with speakers playing a constant tune at a reasonable volume, a massive improvement on dense streets full of varyingly sober people.

I think bells do have a communication use of course, just not really to be used as an emergency 'an accident is about to happen, immediately take action'.

At least a bell sounds relatively polite if you're not spamming it. A horn is a bit aggressive, you have to modulate it.

In a car I use two short tapped toots as a polite kind of 'excuse me' e.g. if someone hasn't noticed a light turning green. That seems more friendly than a sustained blast.

On the bike with a bell I'll just say thank you as I pass, if they've moved for me. Usually seems to go down well enough.

> I find it extremely rude to ring the bell, because it feels like I'm telling people to get out of my way,

I got yelled at very rudely the other day for overtaking a pedestrian without ringing my bell. I thought I had plenty of space, rode at an appropriate speed and didn't want to be rude, like you said, but I guess you can never please everyone.

Its a shared path yes but by two sets of people going at two very different speeds, so I don't feel particularly guilty about the bell, though I do try to avoid it if possible.

> With cars, I will sometimes proactively ring my bell at them if I think they're not sufficiently aware enough of me though.

There's only a few types of car that will be "aware" of cyclists and I don't think ringing a bell will help their algorithms. Getting the attention of a driver, meanwhile, is difficult with a bell as often they'll be in a semi-soundproof cage with loud music on. (Also deaf drivers are a thing).

I've never really considered using a bell for motorised traffic. I did once buy a loud air-horn, but it was so loud and abrasive that I never used it as it seemed really rude.