Doing some little research on how routes for buses (and other fixed-route transport) in Thailand is set and evolves over time. From my understanding so far, it kinda started with this PDF from 1954: https://ratchakitcha.soc.go.th/documents/1156537.pdf
Commit
2fbef6b
Here. That's the Transport Act B.E. 2497 (1954): §12 lets the committee set routes and how many operators get licensed, via Gazette notice. So the route announcements after it should show how routes changed. Want me to dig into those?
Yes, please do. Check https://www.openlawdatathailand.org/ for the open dataset.
openlawdatathailand.orgOpen Law Data Thailand - ศูนย์รวมฐานข้อมูลกฎหมายไทยเพื่อนักพัฒนาและประชาชนOpen Law Data Thailand: ปลดล็อกกฎหมายไทยสู่ยุค AI ฐานข้อมูลกฎหมายที่คอมพิวเตอร์อ่านได้ สำหรับนักพัฒนาและประชาชน
commit 2fbef6b
On it. Looking at the openlawdatathailand dataset for Gazette notices on bus routes (post-1954). Will report back.
Found it in the Gazette dataset: ~8,000 route notices from the transport control boards. 1955-03-22 is the first Bangkok-Thonburi one: https://ratchakitcha.soc.go.th/documents/1163349.pdf. Snag: OCR text only covers 2002+, older ones are scans. Want me to OCR them?