Welcome to the residential area of Bangkok, along the BTS line up to the Jatujak market.
Phahonyothin is one of those roads you may never know completely just like Sukhumvit. It starts from Victory Monument, crosses Bangkok passing through Ari, another popular soi for residential living, continues up to Jatujak following the BTS line before intersecting Ratchadaphisek and the trendy location Ratchayothin goes north to the Don Muang Airport, Ayuthaya province and up to... Chiang Rai! Last destination before it crosses Burma and continues its way as a highway.
Phahonyothin roads is mostly used as a residential area with many condominium and houses and only a few offices buildings. It can experience heavy traffic but mostly this is very easy to avoid it using sois and the public transportation (BTS and MRT at peak times). A condo near Phahonyothin road can reveal itself a great asset as it is easy to reach all other areas of Bangkok to work and you can enjoy near your condo many shopping villages, centers and outdoors area with many great parks available!
All along Phahonyothin you can find a large mix of population with some large luxurious houses, not so well maintained police apartment blocks, or condos for every category of the population.
There are no area of Phahonyothin spared as new condos are built everywhere. You can choose a condo near Sanam Pao and the Phyathai 2 hospital, or choose Ari and the trendy La Villa shopping village, go more north to Saphan Khwai that provide easy access to other areas from Suthisarn, Rama 6 and Phahonyothin roads or opt for a greener living with a condos providing you with a view on Jatujak and Rotfai parks.
Phahonyothin traffic is much lighter than Sukhumvit road, you could quickly get from a point to another without having to stay at the same place for hours. However you can also still experience traffic during peak times, particularly in the morning as traffic moves in Bangkok.
There are five BTS stations along Phahonyothin road that are Victory Monument (at the end of Phayathai road), Sanam Pao, Ari, Saphan Khwai and Mo Chit (terminal station). Plans for extension are being investigated and the line may continue more to the north in the future. Currently this BTS line brings you to Siam, and Sukhumvit areas, but you can also change at Siam and choose to go to Silom / Sathorn up to Krung Thonburi.
As an alternative to the BTS, the MRT line is nearby and connected to Mo Chit BTS station (called Chatuchak for the MRT line). The MRT line currently connects to Bangsue on one side and Hua Lamphong (the train station) on the other side, passing through Ratchadaphisek, Asoke, Sukhumvit, Rama 4, Sathorn and Silom. The line is also currently being extended to cross the Chaophraya (targeting opening in 2015).
There are mainly four places where you can do a bit of shopping around Phahonyothin that are Victory Monument with a few department stores opened there and night market, Ari and La Villa shopping village containing a Villa Market, Ladprao with Central Plaza Ladprao (or Big C Extra Ladprao if you go on Ladprao road) and finally Ratchayothin with the Major Cineplex department store.
Of course the BTS can bring you also to Siam and the many shopping centers available there if you are looking for more.
At Victory Monument, Phyathai 1 is your best choice, but you can also opt for the nearby Phyathai 2 accessed very quickly from Sanam Pao BTS station. The next one would be Paolo Memorial Hospital next to Saphan Khwai BTS station. If you are on Ratchayothin you could opt for Vibhavadi Hospital on Ngamwongwan road, opposite Kasetsart University. All those hospitals provide a good services, Phyathai 2 maybe being slightly above others, but there are actually more choices if you are looking for a nice public hospital or live deeper into the sois.
Behind Ari, on Rama 6 road, you can quickly spot the Vichayut Hospital with two buildings (a transit mini van can bring you from one building to another). It provides also very good services and tend to be slightly cheaper than the other private hospitals. Then on Rama 6 road again, at short distance from Victory Monument, you can get one of the best public services from Ramathibodi Hospital and its many specialized services (however do not forget that public hospital tend to be quite popular as cheaper and therefore waiting time is longer).
Phahonyothin is a great place for its many outdoor parks. From Victory Monument you can access the small but gorgeous Suan Santi Phap park. But if you are looking for larger green areas then next to the Jatujak week-end market is your dream place! The Jatujak park itself is quite big with a large pond in the middle crossed by bridges, but you can find even bigger with the Rotfai park where many enjoy family week-ends renting a bicycle to follow the path next to the ponds, visit the butterflies garden, or practice outdoor sports (tennis, jogging, kayaking...). And in the same area you can have a look at the Queen Sirikit park that is a floral garden with a large variety of flowers and trees to be discovered, as well as dancing fountains three times a day.
Ari used to be very popular for its restaurants, and you still can find some great food in the sois there such as Somtum Bangkok on Ari soi 3. International food also is there with Basilico pizzeria in Ari. Many restaurants just ask to be discovered, and if you are looking for some bars and party there is always a place for you like HOBS in Ari again.