What do access tags on barriers mean?

[Minh_Nguyen (Minh Nguyễn)]

Speaking of narrow alleyways in Asia:

What is the recommended tagging approach for routing narrow residential roads?

Our small community seeks input from the global community regarding the recommended tagging practices for narrow residential roads in Thailand. While the local convention involves using highway=residential + lanes=1, there is a divergence of opinion, with some advocating for the use of service=alley. This discrepancy could potentially lead to conflicts and confusion for new mappers. We are also exploring the possibility of adopting a distinct tagging approach especially when the road width fa…