Because the road starts from Phra Sumen Fort as the continuation of Phra Athit Road at the bank of the Chao Phraya River and meanders around the city following Khlong Rop Krung (around the city canal) up till the foot of Phan Fa Lilat Bridge where it merges Ratchadamnoen Avenue in the area opposite Mahakan Fort.
It is Kurusapa Printing House otherwise known as Wat Sangwet Printer School, currently its façade has been renovated into a Pipit Banglamphu, a museum that displays the history and way of life of Bang Lamphu folks.
[2][3] The road passes through Bang Lamphu, an old commercial district with a long history and that is well known to Thais for being garment trading area especially school uniforms.
Now it is known globally as a budget accommodation hub and hangout spot for foreign tourists, also the location of notable Khaosan Road.
The road continues up till the front the Queen Sirikit Gallery, part of Bangkok Bank, Phan Fa Branch, which is where it terminates.