Why it was upgraded into a tertiary highway?

Surely I've surveyed the highway itself (check History - Ctrl + H) from December 2019 and more recently from March 2020.

That way has a single lane and unlike any adjacent tertiary highways, it is narrower. Road K455 and K460 has two lanes and are wider.

I could show you photos with geo-coordinates later if you'd like to see what I mean.

Please compare the geometries between what was mapped as service highways and the more important residential highways.

Residential highways have two lanes separated by paint lines. Service highways are narrower and do not even have paint lines (suggesting a single lane).

Traffic would rather navigate through wider lanes rather than those narrow lanes.

No worries. I've taken clues from changeset/69598112

Машинный перевод:
Ничего страшного. Я читал от changeset/69598112

relation/5852542

Hello, apparently way/390866276 (way/390866276) was deleted. Cross check with OpenStreetCam: https://openstreetcam.org/details/2148042/468/track-info.

A turn restriction (no U turn; cross check with OpenStreetCam https://openstreetcam.org/details/2148042/466/track-info) is also deleted.

Sources of street names... please state where did you get all these?

Машинный перевод:
Источники названий улиц... пожалуйста, укажите, откуда вы все это взяли?

Hello.

I could see your reasoning. Here's my take on this issue as a local mapper:

1) way/706559601 (way/706559601) is very likely paved with asphalt. I didn't really notice any of its properties during the last ground truth surveying.

2) way/782854562 (way/782854562) may be downgraded to merely a track. Local people (and outsiders) on motor vehicles would rather travel on asphalted roads rather than unpaved highways. See point (1).

3) If you have the time, please take some time to read my comments on https://github.com/GRABOSM/Grab-Data/issues/32#issuecomment-520301612; changeset/72538245; changeset/80124513

Hopefully your team would somehow take an extra effort to dig around edits (⌘+H or equivalent to check out editing history): so that ground truth coming from (unpaid) hobbyist mappers is replaced by (could be so errorneous) extrapolated data especially coming from imageries.

Hi, I've seen some changes made for way/814291776: way/814291776.

I've taken a photo tagged with coordinates: osm.wiki/File:Somewhere_near_state_road_K144.jpg which is around osm.org/go/4Go52LwoR?m=&way=782854562 - in which made edits _just_ a few months back (changeset/82409528)

I would like to know some reasons behind the re-classification.

One more thing, please update your tags when making any edits because "source=ground truth December 2019" doesn't actually reflect your remote mapping effort.

Bing imagery (from 2014) suggests the correct street geometry. Could you please revert affected changes to ground truth (uploaded by me), please?

Hi, could you please check your edits for Jalan Istana Kuning (way/246811674) please?

As a local, I'm really sure the street is not so bendy as suggested from the imagery. Please cross check with any available GPS tracks and also street level photos (e.g. OpenStreetCam - one of the many uploads is https://openstreetcam.org/details/2357806/409/track-info).

Here's what can be mapped as a park: leisure=park

Are you really sure this can be mapped as a park though?

https://www.mapillary.com/map/im/tSBuy3mWgKiHWs6I8lkmED

Also, I'm really sure row of trees doesn't count as parks though.

See this street photo taken 11 January 2020: https://www.mapillary.com/map/im/HSjANudwY2QPHk7LaWrvwk

Are you really sure the park do carry such name? You may leave the name field blank, if no names are present.

Alright, appreciate your comment.

Sorry, this is referring to way/810821233

Hi, please cross check with OpenStreetCam (https://openstreetcam.org/details/2212910/129/track-info). There are no physical barriers for routes that are coming from NE-bound traffic of Jalan Langgar to Jalan Datuk Kumbar, and vice versa.

Please look into this matter, thank you in advance.

Ugh, forgot to include "EOx cloudless Sentinel-2 2018" as a very resourceful source. Maxar's went further older than than.

Maxar Premium Imagery (Beta) is offset at (0,-5)