[...] your statement that "[...] a certain charme [sic], [...]"
Thank you for reminding me that charm doesn't have an "e" at the end.
Off topic:
Only 17 states of 51 require auto safety inspections, we seem to do just fine without them.
It's kind of a little funny, I was gonna write "Albania seems to do just fine without them as well", still researching it now I found out that the country introduced vehicle inspections in the meantime since the last time I looked it up.
Sometimes I wonder if using the same logic, one could also do just fine without elevator inspections (the Ayn Rand Institute seems to think so), amusement park ride inspections, other inspections in transportation in sectors like freight, air and rail, or without food inspections.
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This is still new to me, that there might be a public debate about inspections in the first place, it seems like there is no such debate in most countries.
Back on topic:
In contrast to your statement that "while the bells might provide a certain charme [sic], rail systems could be more attractive if they did not have them." I believe that rail systems would be less attractive without the bells. Ii certainly sets this mode of transportation apart from all the others. It is distinctive. We do not want trains to be mistaken for airlines.
To me, that seems to be a very legit objection to the idea of having trains that don't ring bells. Some people like the bells. And they might be sad to see them go. I have understanding for that.
At the same time, there are probably different reasons to be interested in this particular form of transportation that is rail. In order to try to outline a few different groups, and individual person might also be part of more than one:
1) There might be rail fans, who just like everything rail, who maybe also like steam trains.
2) There might be people who like the charm (without an "e"
![Wink ;) ;)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
) of old style train travel, how they still have good memories of it from the past and they like how it's still more relaxed in an otherwise hectic, hustle and bustle world.
3) There might be people looking for transportation between point A and point B, as quickly and convenient as possible.
4) There might be people who would like to increase the acceptance of rail as a form of transportation.
For group 1, I can see how they like bells. For group 2, I can see how they would like them or at least not mind them.
Group 2 maybe also seem to be the passengers of long-distance Amtrak trains. In case it is long-distance travel, Group 3 might fly. Still for group 3, we would like them to use commuter rail (or high speed rail), which is something different than the Grand Canyon Railway.
In order to get more of the large group 3 for example to use commuter rail, it might be beneficial if it was as modern and convenient as possible. Those bells don't seem very modern.
There might also be people in group 1 or 2, who like the "clickety-clack" sound while riding, because it has a certain charm, or is distinctive for rail travel - would that be a good reason against upgrading to continuously welded rail?
For group 4), thinking of efficient transit, and facing more and more transit-oriented development around stations, why would it make sense for the residences or businesses or other people right around stations to be bothered with bell ringing for substantial parts of the day, if completely avoidable? At the same time, along with other improvements, that create a more modern and inviting impression, doing away with the bells might attract more people to use rail instead of having them think they are about to board something towards the direction of a museum train with the comfort and speed of the past.
Then there's still the difference of Amtrak, especially long-distance, and commuter service. While of course long-distance service like f.e. the Southwest Chief or the California Zephyr could still maintain its bells so that people on vacation in a sleeper from Chicago to Los Angeles still will have the holiday of their lives thanks to the complete traditional rail experience, the thread's topic mentioned commuter rail (though I guess it could apply to high-speed rail as well).
Commuters won't mistake rail for an airplane anyway because there won't be any plane that could bring them from Providence to Boston, or from Tracy to San Diego, or from Fontana to LAUS.
The next step then could be to either get as many grade separations as possible, or also change the rules or create way more quiet zones, in order for trains to not have to honk the horn so often anymore. In a lot of other countries, when there are gates at level crossings, then trains don't have to use their horns. To reduce the noise might be worth it to increase the general acceptance of rail transportation.