In
Bangkok, Phahonyothin Road originates at the northeast corner of
Victory Monument on the periphery of
Ratchathewi and
Phaya Thai districts, then crosses
Chatuchak,
Bang Khen,
Don Mueang, and
Sai Mai districts before continuing into
Pathum Thani Province, and on through
Ayutthaya,
Saraburi,
Lopburi,
Nakhon Sawan,
Chainat, again through Nakhon Sawan,
Kamphaeng Phet,
Tak,
Lampang,
Phayao and finally
Chiang Rai, ending in
Mae Sai district, where it connects to
Tachileik in
Myanmar. Phaholyothin Road in Bangkok is also a demarcation line between districts or sub-districts in several phases as follows: •
Thung Phaya Thai (outbound) and Thanon Phaya Thai (inbound) in Ratchathewi district, as a continuation of
Phaya Thai Road, from Victory Monument to the bridge over the
Khlong Samsen. • Phaya Thai (outbound) and Samsen Nai (inbound) in Phaya Thai district throughout the entire area, from the bridge over the Khlong Samsen to the bridge over the Khlong Bang Sue (begins July 26, 2017). •
Chatuchak (outbound) and
Chom Phon (inbound) in Chatuchak district from the bridge over the Khlong Bang Sue to Ratchayothin Intersection. •
Lat Yao (outbound) and
Chan Kasem (inbound) in Chatuchak district from Ratchayothin to Sena Nikhom Intersections. • Lat Yao (outbound) and
Sena Nikhom (inbound) in Chatuchak district from Sena Nikhom Junction to Thong Chanya Bridge. • Bang Khen district (outbound) and Sai Mai district (inbound) from the bridge over the Khlong Lam Phak Chi to
Saphan Mai quarter. • Don Mueang district (outbound) and Sai Mai district (inbound) from Saphan Mai quarter to the administrative boundary line between Bangkok and Pathum Thani. == See also ==