Furthermore, the road correctly has 4 lanes ... when u added the second carriageway, you made no attempt to correct the lane information, or even add the road ref to the tiny sections you added, all of which should have been merged.
Your mapping is poor and I suspect we will have to fix a lot more stuff. Thankfully you appear to have stopped editing now that Grab have cut funding.

Kesinee - Way: ถนน พ่อขุน (936999759) - Why have you made this road into a dual carraigeway?
It only has a thin painted traffic island, which then turns into just a double yellow line.
Thai mapping protocol is to map these as single ways, not two, and your changes are destroying routing engines as no right turns are possible as you have drawn things .. in reality, you can.
Please be more careful when armchair mapping if you don't know the area.
I will be reverting a lot of your edits.
Russ

Julian, the point is I have been mapping here 12 years and get worn out with people just deciding they think a road should have its status changed. My notes on my GPS 7 years ago show it was tertiary then, and when I whizzed past yesterday, I think I saw a blue sign, glanced at my GPS, and saw the road was no longer tertiary.
We are not supposed to look at Google streetview, but if you did, you will see the white milestones (typical of CLASSIFIED roads) marking the hwy - that should have made you think twice.
Sorry if I sound hard, hopefully this is one "mistake" and not the tip of an iceberg, which has happened many times before.
Russ.

Its Way: ชม.4049 (284221982), but I deleted your unclassified bits and extended original so you probably can see your edits any more.
changeset/116100656#map=15/19.2053/99.1911

cmoffroad - I don't know what you are playing at with this road. Its tertiary all the way from the 1001, but for some reason you changed the west section to unclassified, and split the road arbitrarily where a track meets it. The tagging is identical both sides so why split ?
The east section, u chose to leave as is, yet looking at the point it changes I see no difference in the road.
The Thai wiki states it all should be tagged as tertiary.
If you really disagree, please have the courtesy to discuss your changes with the original contributor first.
I have changed it back.
Russ.

Hi, as far as I remember when I lived there, the public could walk through this road that belonged to the church, so I still feel permissive is the right tag. As you can traverse its length, destination is not so appropriate.... however things may have changed in 7 years so if you feel destination is now more accurate, feel free to change.
Cheers

Qomar IRM-ED : please do not add the bridge tag to roads that you have not surveyed. (way/325724296, v3)
There is no bridge here, it is a ford.
It has been tagged as a ford, the water runs over the road. There is no bridge, so please don't tag things you have not surveyed, when others already have tagged correctly before you.
I have changed your edits.

pa_dala - In Mapping and improving road attributes, you have drawn the ways that lead to many houses, as a "footway" !
Think about it ... do you really think nobody drives a vehicle to their door ? And a footpath ?
If you want to improve things, change all these paths to something more accurate, such tags as service, driveway, and private (or destination).
If Grab are paying you to do these edits, are you just looking to add any data, whatever it may be ?

It seems like way/970267042 also has the one way direction incorrect. This should be blatantly obvious if you checked your edits. Its no wonder my GPS did not route correctly in this area.
Please be more careful.

Dear rat_lorand-grab .....
way/970267043 : I understand your desperation to add detail for Grab, but you are messing up good data.
This way has a small island, leading to a painted area.
You have drawn it way too long, which means heading north on the 3087, you can not turn left into the Petrol station - in reality you can. We do not treat painted areas in Thailand as physical barriers.
You have also messed up the one way direction - we drive on the left in Thailand. Do you live here or are you armchair plotting from India ?
I have fixed your mistakes, but please be more careful when playing with our map.
Russ.

Done.

Argh .... thanks for picking that up. I'll change in the next 24 hrs.
Cheers.

Why is the Grab Data team still adding small farm tracks in rural areas, as RESIDENTIAL ROADS ?
This is a typical example..... a small unpaved road that leads to an orchard ... maybe there is a field shelter at the end. Are you being paid to add roads, but tracks don't count ! Are you just too lazy to check further. You don't even bother to add a surface tag, allowing routing software to happily take family cars on these roads.
The standard of your mapping is terrible, and Im spending countless hours fixing your mistakes, retagging roads such as this.
In fact Hwy 11 is a dual carriageway here, which I will amend today - really important changes seem to pass you by !
Russ.

No worries...I'll check out that new overpass when I'm passing next, but doubt if its finished yet.

Dave - is the 1102 really all one way here ? I know its a narrowish road, but I have not been down of late. Doesn't make sense if they changed this bit !

Yes, my apologies, I picked the wrong changeset, and hence the wrong user. Rgds.

This road circles a school playground - it should be obvious. Why tag as residential ? If you must add every single road you see please try and tag correctly - Im sure you dont want Grab taxis driving over the children leaving school !

If a highway is one way, you add the tag ... you don't call it the name "one way". Please revert any other instances I have not managed to correct.

Well if Way: 72704945 if not a service road, what about the tiny bit of track at the Southern end, and the service road at the North ? Is that really how it is on the ground ?

Yes, of course. Must have accidentally changed it, Cheers. Corrected now.