Proposed features/Unconvetional railway details

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Unconvetional railway and guided busway details
Status: Draft (under way)
Proposed by: Kovposch
Applies to:
Definition: Unconvetional railway and guided busway details
Drafted on: 2020-09-30

Proposal

This is a pre-RFC draft. Will not enter RFC for quite a while.

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

Rationale

For now, they are packaged together here due to the interrelationship between some of them. They may be broken up later.

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 following new tags would be proposed for the working details.

Support

A vehicle may use multiple form of support. This is especially complex 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.

Therefore SCMaglev will get maglev=electrodynamic + roll_pad=pad in this aspect.

Structure

monorail:structure=* Other monorail=* values will be directed here, allowing different aspects of a monorail to be distinguished. This also cleans up the synonymity of monorail=* in PT and infrastructure.

  • To-do

Guidance

railway=*

Busway

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

Electrification

Could be applied to roads for charging buses?

(To-do: Cable details, to pick up on OpenRailwayMap/Tagging and refer to Proposed features/Lines attachments et al; trolley bus twin wires)

trolley_wire=yes will be treated as electrified=contact_line + contact_line=wire + electrified:collection=trolley_pole

Examples

Rubber-tyred "guideway"

railway=*

What may be branded as magnetic or optically guided "tram" shall 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.

Busway

Linear motor

Steel-on-steel

Rubber-tyred

Cable-propelled

Maglev

High-speed

Conventional-speed (EMS)

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

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No tags are "deprecated". All these serve as a further refinement. The original tags may continue to be used as an initial detail.

External discussions

Other proposals

Comments

Please comment on the discussion page.