ra1d ago

Škoda DuoBell: A bicycle bell that penetrates noise-cancelling headphones

https://www.skoda-storyboard.com/en/skoda-world/skoda-duobell-a-bicycle-bell-that-outsmarts-even-smart-headphones/

Škoda DuoBell: A bicycle bell that outsmarts even smart headphones - Škoda Storyboard

Pedestrians wearing headphones are exposed to an increased risk of accidents. In an effort to reduce collisions with cyclists, Škoda Auto, in collaboration with scientists, introduces an innovative bicycle bell whose sound can penetrate even active noise cancellation systems. In doing so, it helps prevent injuries to both pedestrians and cyclists.

Škoda Storyboard
Show thread0x3f1d ago

Do horns and bells really prevent accidents?

In order for e.g. a horn to work you need enough time that the driver processes the situation and decides the horn will communicate something AND enough time for the pedestrian or whatever to process that and react to it. Generally it's a lot easier just to press the brake, and more importantly be travelling at a speed and in a manner where the brake is sufficient.

Structurally, we'd be much better off reducing conflicts between the different tiers of users. I.e. properly segregated infrastructure for each class of vehicle.

Show threadi_am_proteus

Bicycle bells are mostly for warning pedestrians when approaching from behind and passing on shared-use trails. I ride on shared infrastructure and cannot afford to build new infrastructure when my town will not. Not warning a pedestrian when approaching from behind introduces the possibility of collision if the pedestrian makes a sudden change in his walking course. I typically use this etiquette:

Passing a single pedestrian or runner on a quiet day: no bell, coasting for a short bit with a loud free hub (the rotating ratchet element on the rear wheel) alerts the pedestrian to my presence.

Passing a runner: normal ring from a distance so they have knowledge that the bicycle is passing

Passing a cyclist: one loud ring from a distance

Passing a pedestrian walking a dog: two loud rings, one far, one close, so that the pedestrian is aware of the approaching bicycle and he can prevent his dog from running at me/colliding. Many dogs do seem to enjoy a bicycle chase.

Antisocial pedestrians (i.e., walking side-by-side such as to be blocking the path in both directions, preventing the bicyclist from passing): several loud rings of the bell until the antisocial activity has abated. Announcements in my local tongue (not English) that they impede the flow of traffic.

Apr 8 at 10:40amWeb
Show thread0x3f1d ago
Right it has a wider non-emergency comms purpose, I do this too. But I wouldn't do it and assume they've heard or understood, and so overtake too fast on that assumption. The overtake should be safe regardless.
Show threadnoio23h ago

I wonder if you are German?

Spending some time in Germany from Holland I notice there is a significant difference in cycling etiquette :)

Especially regarding “passing a cyclist” which also touches on the essential difficulty with having only one “ring” sound.

Always when Germans pass me on the bike and they ring I get slightly annoyed because I interpret it as a “get out of the way” ring, and I feel like there is enough space. But perhaps it’s just the cautious “don’t do anything unexpected” ring.

A Dutch person would rarely ring at another cyclist in the former way. But they also might be less safety focused while cycling (see also: helmet usage). Or we have safer infrastructure already.

On a road bike, however, I too ring at pedestrians “preemptively”. For sure GPs remark of “if you need to ring you’re going too fast” applies here but that’s the essence of road cycling.

Ironically I’m also annoyed when road cyclists ring at me for the same reason.

Just shows the case for having 2 clearly different types of rings.

(Also for cars to have a “thank you” horn, haha)