Bangkok Transit Map is an unofficial public transport mapping project created and maintained in his spare time by Oran Viriyincy, also known as Ohm. It brings Bangkok’s complex network together in a single visual guide, helping residents and visitors understand how different services connect. The map covers BTS SkyTrain, MRT, SRT commuter and long-distance rail, and the Airport Rail Link, alongside bus and boat routes.

It identifies lines by name and color, including the Green, Gold, Blue, Purple, Yellow, Pink, Red, and Orange lines, and also shows future corridors and planned extensions. Visitors can explore the present network, compare it with maps from 1999 and 2019, view travel-time information, consult a station directory, and download the current Thai-English map as an A3 PDF. The site also provides links and contact details for transport operators, plus information about bus, boat, and rail services.

The creator notes that the map is not official and may contain inaccuracies, advising passengers to contact operators for the latest information