On Mon, 9 May 2022 23:11:17 -0600, rbowman <bowman@montana.com> wrote:

>On 05/09/2022 10:44 PM, Ricky wrote:
>> On Monday, May 9, 2022 at 11:43:36 AM UTC-4, jla...@highlandsniptechnology.com wrote:
>>> On Mon, 9 May 2022 11:10:25 -0400, Phil Hobbs
>>> <pcdhSpamM...@electrooptical.net> wrote:
>>>
>>>> whit3rd wrote:
>>>>> rOn Sunday, May 8, 2022 at 7:26:44 PM UTC-7, Phil Hobbs wrote:
>>>>>> whit3rd wrote:
>>>>>>> On Thursday, May 5, 2022 at 11:17:45 AM UTC-7, Phil Hobbs wrote:
>>>>>>>
>>>>>>>> I have no idea why anybody would use a monorail for anything
>>>>>>>> real.
>>>>>>>
>>>>>>> Why? Because the ones you've seen are small? Hero's steam turbine
>>>>>>> was small, too.
>>>>>
>>>>>> No, because in order to get static stability your one track has to
>>>>>> be huge and therefore expensive.
>>>>>
>>>>> Following that reasoning, we'd expect funiculars for intraurban
>>>>> transit.
>>>>
>>>> Do tell. Cable suspension and all those towers are cheaper than train
>>>> tracks? And funiculars are as fast as trains?
>>>>>
>>>>> The rigid elevated systems use less airspace than a guyed tower
>>>>> (there's HUGE lateral cable-tension loads in a funicular). A
>>>>> dovetail monorail is practical and less derail-able than standard
>>>>> twin-track.
>>>>
>>>> Most derailments are caused by maintenance failures, IIRC. With the
>>>> same standard of maintenance, your dovetail gizmos are less likely to
>>>> fail, and/or easier to repair?
>>>>
>>>> Don't think so.
>>>>
>>>> Cheers
>>>>
>>>> Phil Hobbs
>>> I think our underground systems, MUNI and BART, should tear up their
>>> tracks and pave the tubes and run electric busses in them.
>>
>> Isn't that Elon Musk's idea? The Boring Company.
>>
>
>Teslas in Tunnels.

Boring emphasizes speed but needs gigabuck tunnels to get that speed.
It probably won't happen.

Most public transport emphasizes giant vehicles, like 20-car BART
trains with a few hard-to-access stations. Public transport tends to
emphasize bigness, to trade latency for speed.

I can drive to work in 12 minutes or spend an hour or more on public
transit. Just waiting for a giant BART train on the platform kills
about 12 minutes.

San Francisco used to have hundreds of private jitneys that would pick
people up and drop them off everywhere. The city outlawed them to
force people onto gigabuck public transport full of union labor.

--

If a man will begin with certainties, he shall end with doubts,
but if he will be content to begin with doubts he shall end in certainties.
Francis Bacon

On Tuesday, 10 May 2022 at 17:49:57 UTC+1, John Larkin wrote:
> On Mon, 9 May 2022 23:11:17 -0600, rbowman <bow...@montana.com> wrote:
>
> >On 05/09/2022 10:44 PM, Ricky wrote:
> >> On Monday, May 9, 2022 at 11:43:36 AM UTC-4, jla...@highlandsniptechnology.com wrote:
> >>> On Mon, 9 May 2022 11:10:25 -0400, Phil Hobbs
> >>> <pcdhSpamM...@electrooptical.net> wrote:
> >>>
> >>>> whit3rd wrote:
> >>>>> rOn Sunday, May 8, 2022 at 7:26:44 PM UTC-7, Phil Hobbs wrote:
> >>>>>> whit3rd wrote:
> >>>>>>> On Thursday, May 5, 2022 at 11:17:45 AM UTC-7, Phil Hobbs wrote:
> >>>>>>>
> >>>>>>>> I have no idea why anybody would use a monorail for anything
> >>>>>>>> real.
> >>>>>>>
> >>>>>>> Why? Because the ones you've seen are small? Hero's steam turbine
> >>>>>>> was small, too.
> >>>>>
> >>>>>> No, because in order to get static stability your one track has to
> >>>>>> be huge and therefore expensive.
> >>>>>
> >>>>> Following that reasoning, we'd expect funiculars for intraurban
> >>>>> transit.
> >>>>
> >>>> Do tell. Cable suspension and all those towers are cheaper than train
> >>>> tracks? And funiculars are as fast as trains?
> >>>>>
> >>>>> The rigid elevated systems use less airspace than a guyed tower
> >>>>> (there's HUGE lateral cable-tension loads in a funicular). A
> >>>>> dovetail monorail is practical and less derail-able than standard
> >>>>> twin-track.
> >>>>
> >>>> Most derailments are caused by maintenance failures, IIRC. With the
> >>>> same standard of maintenance, your dovetail gizmos are less likely to
> >>>> fail, and/or easier to repair?
> >>>>
> >>>> Don't think so.
> >>>>
> >>>> Cheers
> >>>>
> >>>> Phil Hobbs
> >>> I think our underground systems, MUNI and BART, should tear up their
> >>> tracks and pave the tubes and run electric busses in them.
> >>
> >> Isn't that Elon Musk's idea? The Boring Company.
> >>
> >
> >Teslas in Tunnels.
> Boring emphasizes speed but needs gigabuck tunnels to get that speed.
> It probably won't happen.
>
> Most public transport emphasizes giant vehicles, like 20-car BART
> trains with a few hard-to-access stations. Public transport tends to
> emphasize bigness, to trade latency for speed.
>
> I can drive to work in 12 minutes or spend an hour or more on public
> transit. Just waiting for a giant BART train on the platform kills
> about 12 minutes.
>
> San Francisco used to have hundreds of private jitneys that would pick
> people up and drop them off everywhere. The city outlawed them to
> force people onto gigabuck public transport full of union labor.

Bring back the electrobats!