These highways should stay as unclassified because obviously they carry more traffic anywhere across the residential area.

Source? Personally surveyed manually this area: way/354789503

These are not have been manually surveyed but I think following the above argument, they should stay as they are.

way/542090844
way/542090836

However, I don't think this should be upgraded into a residential highway. If I recall correctly this leads to a few houses that are not built together as a housing estate.

way/557212832/

Also, maybe this as well:

way/542090840

On top of that, these may be downgraded as residential highways:

way/542090843
way/542090837
way/542090835
way/542090834
way/542090833

I guess the same might apply to

way/542090823
way/542090839
way/542090831
way/542090830
way/542090829
way/542090828
way/542090827
way/542090826
way/542090825
way/542090824

Ways 542090842 and 542090841 (way/542090842, way/542090841) are believed to be mapped as an unclassified highway because they might carry more traffic in the surrounding residential area. Though I'm fine if it's going to be downgraded as residential ways.

Source of street name?

E.g. the famous Lebuhraya Darulaman is tagged with `name=Lebuhraya Darulaman` and `official_name= Jalan Butterworth-Alor Setar`.

Source of street name?

Источник названия улицы? (Google Translate)

osm.org/?mlat=6.09358&mlon=100.38376#map=19/6.09358/100.38376

Location of the "electric box" is roughly

osm.org/#map=19/6.093312675162014/100.38392078847623

You're welcome. The street geometries can stay, but those names have to be removed for the time being. Those information should come from knowledge, or by taking some time to stroll around the neighbourhood and collect them over time.

If you need assistance in doing so, you may let me know about it.

Hello, welcome to OpenStreetMap.

For playgrounds, please map them correctly as playgrounds (leisure=playground), not as parks (leisure=park)

Ok, thank you for your reply.

We can use satellite imagery from Bing to improve OpenStreetMap. Unfortunately, we cannot use geographical names (place names, street names, etc) from Bing.

osm.wiki/Bing_Maps#Bing_Aerial_Imagery

Salam, boleh tahu datang dari mana sumber nama jalan dalam edit ni?

As always, if this matter should be discussed further, feel free to open a new topic in the forum: https://forum.openstreetmap.org/viewforum.php?id=60

Names: it's like Parkson (百盛).

For example, Google Maps by default would only display Parkson but searching for "百盛" would work too. name:zh=* tag will do it

Please read osm.wiki/Malaysian_Roads_Tagging

Please read about primary highways in OpenStreetMap: highway=primary

Correcting sharp angle