Proposal:Unconventional railway details

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Unconvetional railway and guided busway details
Proposal status: Draft (under way)
Proposed by: Kovposch
Applies to:
Definition: Unconvetional railway and guided busway details
Draft started: 2020-09-30

Proposal

Details of unconventional railways and guided busways, for their supporting mechanism, structure, guidance, traction, and propulsion.

Rationale

  • Some defining attributes are missing from mostly railway=subway , which is already used for rubber-tyred or linear motor metro. These affects their profile, performance, and service greatly.
  • railway=monorail mixes up different aspect in monorail=*, as well as conflicts with the monorail=yes meaning in Public Transport. It is misused for rubber-tyred guideways that don't have a single rail. Some maglevs are not monorails either, as tagged by monorail=maglev.
  • railway=light_rail has already been used by some for systems that are not steel wheel heavy rail.
  • railway=maglev is not adopted. As previously discussed, it's too specific and limited in scope.
  • highway=bus_guideway doesn't describe optical and magnetic guided bus yet.

Tagging

It is proposed to tag railway=* by its function as is normally, only using railway=monorail for the substantially different monorail. Pragmatically, this would conform to current practice, and maintain compatability. Conceptually, this would allow railways to be distinguished by function, instead of form.

The proprietary system itself might be shown as model=* and manufacturer=* or equivalent.

Support

A vehicle may use multiple form of support. This is especially complicated for the Paris-style "rubber-tyred" metro that uses steel wheels as well. SCMaglev on Chuo Shinkansen is an EDS maglev system, where rubber tyres are also used below levitation speed. Thus this necessitates handling multiple form of support from the onset.

Structure

Guidance

Rubber-tyred guideway

Maglev

Guided bus

Traction

Not to be confused with "propulsion".

For multiple traction methods on different sections (eg Skyrail), change the tag according to the propulsion the vehicle use at the section, not whether the propulsion mechanism exists through it?

Linear motor

Rack

Follow Key:rack.

Propulsion

Motive power source

Open-question as in Proposed_features/Unconvetional_railway_details#Applies to

Examples

For brevity, please refer to Wikipedia for lines constructed of that system. model=* and manufacturer=* or equivalent can be added if applies.

Rubber-tyred "guideway"

rollway=pad + traction=adhesion

What may be branded as magnetic or optically guided "tram" should not be tagged as railway=tram. The difference between a rubber-tyred tramway and guided busway may be decided on whether the vehicle can move normally off rail. As such  Translohr most definitely would be railway=tram, while  Bombardier Guided Light Transit is likely to be classified as a guided busway.

Steel and rubber hybrid

Guided bus

Rubber-tyred tram

Linear motor

linear_motor=induction + traction=linear_motor

Steel-on-steel

running_rail=yes

Rubber-tyred


Cable-propelled

traction=cable

Air-cushioned

hover_pad=yes

Maglev

High-speed

linear_motor=synchronous + traction=linear_motor

Conventional-speed

linear_motor=induction + monorail:structure=straddle

Applies to

way

However, need to consider how to assign properties between wayrailway=* (infrastructure) and relationroute=* (on board the train)

Rendering

No change, or a variation on existing style.

Features/Pages affected

  • Deprecated
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External discussions

Other proposals

Changesets

Wiki

Comments

Please comment on the discussion page.