The edit to the bus-only slip road was partially reverted by Kovosch. changeset/67581939

I've partially reverted this changeset for several bus routes, as their members were incorrectly changed to begin at Yuen Long (West).

Partially reverted to restore railway=station for 96th Street subway station (Second Avenue Line).

I'm not sure if my reservation about the primary_link classifications is just because they (i.e. 255891700 and 236039696) would look strange crossing through service roads, although it would probably be the logical way to label them if the overpass (33277266) is tagged as primary_link.

I'm not sure. I think primary_link might be appropriate for it and way/225114285, but it might depend on the classification of the other ways between Tai Po Road and the racecourse.

These ways should probably also be motorway_link, since they are one-way and only connect to another motorway_link at one end:
• way/135619198 – service (2018-11), was previously motorway_link (2017-10) and residential (2011-11)
• way/135716499 – as above
• way/255891627 – service (2018-11), was previously motorway_link (2017-10) and service (2014-01)
• way/44488054 – service (2018-11), was previously motorway_link (2015-03), trunk (2015-03), motorway_link (2011-01) and trunk_link (2009-11)
• way/44488132 – as above
• way/644703033 – service (2018-11); was split from way/209216309 – motorway_link (2013-03)

Some of these ways could be primary_link for similar reasons:
• way/225114285 – service (2013-06)
• way/255891700 – service (2014-01)
• way/135716488 – service (2011-11)
• way/294630970 – service (2017-10), was residential (2014-07)

I'm not sure about all of these. All of the 2017 edits were by bgard and all of the 2018 edits were by 🗺🗺🗺.

On discussion fora: I agree Telegram might be useful, or Discord. Wikimedia (English) and OSM (English) each have Discord channels. Wikimedia Hong Kong (Chinese/English) has a Telegram group.

@Kovosch I don't think so, although it would be very nice to get one started. I've been here for almost six years and haven't been informed of one, and the wiki page (osm.wiki/WikiProject_Hong_Kong) doesn't link to any external groups or forums.

Why would it be appropriate to keep 562205337 as a residential road?

@GeoidDude I agree with you for all five ways, although I'm somewhat unsure about the service classification. Some of the other slip roads (e.g. way/135716499, way/255891627) also seem to have similar issues. It's worth noting that a lot of these link roads seem to originally have been classified as they currently are until changed by bgard (also from Apple) in 2017.

I think primary_link would be appropriate. My Mapillary photos (https://www.mapillary.com/map/im/I3XhvAsr3a_zzi3i0xi-Pw) indicate that on the southbound on-ramp the "start of expressway" sign is very close to the junction with Tolo Highway, and the three ways modified in this changeset are quite far away from the junction and do not have to lead onto the highway anyway. The bridge on the other side of the interchange is possibly incorrectly tagged as residential; should that road also be tagged as a primary_link?

(I don't think the location of the posted signage is completely relevant, since the tagging convention doesn't define the use of link road tags based on the legal classifications of the link roads themselves, but on the legal classifications or importance of the non-link roads. The UK also has such signs at motorway on-ramps, but the ramp isn't split at the exact location of the sign, which was what 🗺🗺🗺 was doing.)

* I reverted the changeset but fixed the Tsuen Wan Line layering issue.

I'm reverting this changeset because only layers -5 to 5 are used, and other layer tags are unlikely to be supported by software. (layer=*)

It might be appropriate to ask on the tagging mailing list, since I personally haven't actually tagged a lot of links recently.

However, my interpretation is that because those three ways don't have to be used to drive onto the motorway (they have to be used in driving from Tsun King Road or Tai Po Road – Ma Liu Shui to Sha Tin Racecourse), they shouldn't be tagged as motorway links. The service road also doesn't exclusively provide access to the destinations, because the interchange is incomplete and it is necessary to drive through Sha Tin Racecourse in driving from Tsun King Road to Tolo Highway. (To my knowledge, the "service" roads inside the racecourse are public roads for routing purposes. I don't know whether the interchange is on public or private land.)

An additional distinction is that in Hong Kong some (but not all) parts of motorway links are themselves legally classified as part of controlled-access highways, and road signs indicate such. What you have effectively been doing in a lot of your recent changesets, including this one, is removing this distinction where it exists. I don't know whether this is correct, since some other countries might not have those explicit delineations shown by road signs.

I don't think this is correct. It's possible to drive from Tai Po Road to the service road inside Sha Tin Racecourse, so the slip road which allows said journey doesn't directly function as a motorway link. "If a road leads from a motorway to a non-motorway, only the portion that solely carries traffic to or from the motorway should be tagged as motorway_link." (highway=motorway_link)

I unfortunately have to revert your edits since access=no shouldn't be used on roads which are accessible by the general public. The correct tag is either no tag or access=yes (plus more specific restrictions).

There is a lot of software that depends on these assumptions, so the interpretation shouldn't change barring extraordinary circumstances.

You don't have to fill out all of the buttons in the iD editor interface, and the interpretation is not defined by the editor. If a road does not have any access tags it is assumed to be a public road, and if a road does not have a oneway tag then it is assumed to be a two-way road.

• Please edit name tags properly (e.g. clear errors for node/4398872742 and way/669121631). alt_name shouldn't be the same as name.
• You should probably use JOSM instead of iD, particularly since I've noticed you tend to create a lot of label and alignment issues when using iD (which everyone else has to clean up; e.g. changeset/67105708). It's also more suited to high-volume and precise editing, and the object validation (which iD doesn't have) is also quite useful

comment was incorrect

* I already reverted this changeset about 15 minutes ago, sorry. The above

I'm reverting this changeset.

I'm reverting this changeset.

I'm reverting this changeset.