Vibhavadi Rangsit Road
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|Length:||28.500 km (17.709 mi)|
|Existed:||1966 – present|
|From:||Tai Duan Din Daeng Intersection in Din Daeng, Bangkok|
|To:||Phaholyothin Road in Lam Luk Ka, Pathum Thani|
The road begins at Phaya Thai district in Bangkok and crosses Chatuchak, Lak Si, and Don Mueang districts before merging with Phahonyothin Road (Thailand Route 1), Khu Khot subdistrict, Lam Luk Ka district, Pathum Thani Province.
Vibhavadi Rangsit Road is a superhighway through Bangkok with no traffic lights. It is a divided highway, with each side further divided into a main road and a frontage road. Major roads that Vibhavadi Rangsit Road intersects are Din Daeng Road (its point of origin), Sutthisan Road, Lat Phrao Road, Phahonyothin Road, Ngamwongwan Road (Route 302), and Chaengwatthana Road (Route 304).
It is named in honor of HRH Princess Vibhavadi Rangsit (1920-1977), a well-known Thai novelist who dedicated the final decade of her life to developing rural Southern Thailand, and was killed in an attack by insurgents while trying to rescue injured Border Patrol police. Prior to the renaming of Highway No. 31 as Vibhavadi Rangsit Road, it was commonly known as "Superhighway Road" (Thai: ถนนซูเปอร์ไฮเวย์, Thanon Superhighway).
The Uttaraphimuk Elevated Tollway, better known as Don Mueang Tollway runs high above the road and is a toll expressway in Bangkok.