Objective: Grab team is going through the existing road geometries in the mentioned cities and will work on making improvements. We'll be reviewing and mapping the following features: missing roads, road classification, and check for intersection configurations and alignment accuracy.

Christophe95 , CC BY-SA 4.0, wikimedia commons

Regions we are reviewing/mapping:
Starting with the following city [cities]:

• Bangkok, TH
• Ayutthaya
• Chachoengsao
• Samui
• Nakhon Nayok
• Chumphon
• Chaiyaphum
• Chiang Mai
• Kalasin
• Phitsanulok
• Ubon Ratchathani
• Hat Yai
• Udon Thani
• Krabi
• Hua Hin
• Trang
• Chonburi
• Chiangrai
• Buri Ram
• Lampang
• Surat Thani
• Chanthaburi
• Surin
• Tak
• Lamphun
• Yala
• Uttaradit
• Pattaya
• Phetchaburi
• Maha Sarakham
• Rayong
• Nakhon Phanom
• Ratchaburi
• Nakhon Pathom
• Nakhon Ratchasima
• Nakhon Sawan
• Nakhon Si Thammarat
• Phayao
• Nong Khai
• Kanchanaburi
• Roi Et
• Phuket
• Phrae
• Prachinburi
• Loei
• Pattani
• Phichit

Workflow: We'll be following the same workflow as mentioned in our wiki - https://github.com/GRABOSM/Grab-Data/blob/master/Data%20Improvement%20Projects and https://wiki.openstreetmap.org/wiki/Grab#Process_Flow

Validation: We'll be following the validation guidelines mentioned in our wiki: https://wiki.openstreetmap.org/wiki/Grab#Quality_Process

Changeset Comment: Mapping and improving road attributes: https://github.com/GRABOSM/Grab-Data/issues/49 #grabosm

Source: MAXAR -- we would refer to others if need be.

Filter: None

Plugins: None

Edge cases: None at the moment, we'll post it as a subsequent comment if need be.

Team involved: The Grab Data team

OSM Forum Link: https://forum.openstreetmap.org/viewtopic.php?id=70525

Do reach out to us if you have any questions or suggestions on the same. Happy Mapping!

cc: @jinalfoflia @poornibadrinath