Later in 2015, there was an extension of Phran Nok–Phutthamonthon 4 Road from Taling Chan District to alleviate traffic problems, thus making it into a four-way intersection in the present.

[1] The area of Fai Chai between early 1960s to late 1980s was the location of the Southern Bus Terminal (currently shifting to Taling Chan), market, Nakornloung Shopping Center and namesake movie theater.

[2] Fai Chai tunnel, which is an underpass along Charan Sanit Wong Road direction, took 13 years to complete the construction.

The Bt788-million project, which is being carried out by Kamphaeng Phet Wiwat Construction, began in October 2009 during the tenure of Bangkok governor MR Sukhumbhand Paribatra.

However, construction progress has been delayed by disputes over its size, design and overlap with the MRT Blue Line’s Bang Sue-Tha Phra phase.