The Udon Ratthaya Expressway (), also known as the Bang Pa-in–Pak Kret Expressway (), is an expressway in Thailand, located in Nonthaburi, Pathum Thani and Phra Nakhon Si Ayutthaya provinces. The expressway is a controlled-access toll road.
History Udon Ratthaya Expressway was proposed to handle road traffic for the 13th Asian Games which were held at Thammasat University Rangsit Campus in 1998. It was also aimed at reducing road traffic on Vibhavadi Rangsit and Phahon Yothin roads leading northwards out of Bangkok. The first section between Chaeng Watthana–Chiang Rak was opened on 2 December 1998. It is a continuation of the Si Rat Expressway Section C. The second section between Chiang Rak–Bang Sai was opened on 1 November 1999.
According to an official EXAT annual report, the expressway was used by 25,842,029 cars in the 2022 fiscal year, with an average of 74,688 cars per day.
Route
Kilometre 0 is counted at Chaeng Watthana Interchange. Udon Ratthaya ExpresswayLocationkmNorthboundFacilitySouthboundExit destinations (road)Toll Plaza (Entry)EnglishThaiToll Plaza (Entry)Exit destinations (road)Nonthaburi0.0 -no toll plaza (continued from Si Rat)Chaeng Watthana Interchangeแยกทางด่วนถนนแจ้งวัฒนะno toll plaza (continues to Si Rat)Lak Si, Pak Kret ( Chaeng Watthana Road)Pracha Chuen, Bangkok ( Si Rat Expressway)2.57Muang Thong Thani, Sukhothai Thammathirat University (Popular Road)Muang Thong Thani (Outbound)Muang Thong Thani Interchangeแยกทางด่วนเมืองทองธานีMuang Thong Thani (Inbound)Muang Thong Thani (Popular Road)5.18Tiwanon Road, Nonthaburi Bridge ( Si Saman Road)Si Saman (Outbound)Si Saman Interchangeแยกทางด่วนศรีสมานSi Saman (Inbound)Don Mueang ( Si Saman Road)Pathum Thani12.70Ban Klang Intersection, Pathum Thani ( Rangsit–Pathum Thani Road)Bang Phun (Outbound)Bang Phun Interchangeแยกทางด่วนบางพูนBang Phun (Inbound)Rangsit ( Rangsit–Pathum Thani Road)20.02Chiang Rak, Thammasat University Rangsit ( Chiang Rak Road)Chiang Rak (Outbound)Chiang Rak Interchangeแยกทางด่วนเชียงรากChiang Rak (Inbound)Chiang Rak, Thammasat University Rangsit ( Chiang Rak Road)Phra Nakhon Si Ayutthaya29.40Bang Sai, Bang Bua Thong ( Kanchanaphisek)Bang Pa-in (Outbound) - exit onlyKanchanaphisek Ring Road InterchangeแยกวงแหวนกาญจนาภิเษกBang Pa-in (Inbound)Bang Pa-in, Ayutthaya, Wang Noi (
See also Controlled-access highways in Thailand Expressway Authority of Thailand
References