Kamphaeng Phet Road (Thai:ถนนกำแพงเพชร,RTGS: Thanon Kamphaeng Phet,pronounced[tʰā.nǒnkām.pʰɛ̄ːŋpʰét]) is a road in Thailand capitalBangkok, there are currently eight branches. The road is a site ofMRT Blue Line stationKamphaeng Phet.

National Highway 3508
ทางหลวงแผ่นดินหมายเลข 3508
ถนนกำแพงเพชร 6, ถนนโลคัลโรด Kamphaeng Phet 6 Road, Local Road
Route information
Length	4.3 km (2.7 mi)
Existed	1978–present
Major junctions
South end	Kamphaeng Phet 6 Road inDon Mueang (Bangkok)
North end	Hwy 346 inRangsit,Pathum Thani province
Location
Country	Thailand
Provinces	Bangkok,Pathumthani
Major cities	Bangkok,Rangsit
Highway system
Highways in Thailand Motorways Asian Highways

The road was constructed in the year 1978 byBangkok Metropolitan Administration (BMA) to connectPhaholyothin Road with Yan Phaholyothin Road and received construction assistance from the Military Battalion, 111th Mechanic, 11th Military Department ofRatchaburi Province.

Due to the road run through the land of theState Railway of Thailand (SRT), therefore used the name "Kamphaeng Phet Road" in honour ofPurachatra Jayakara, Prince ofKamphaeng Phet. Who was the first commander of Royal State Railways of Siam (now State Railway of Thailand), and regarded asFather of the Thai railways.

• Kamphaeng Phet Road (ถนนกำแพงเพชร) – starting from Kamphaeng Phet Junction, where it cuts with Phaholyothin Road at the southeast corner ofChatuchak Weekend Market to the west ending at Rama VI Road in the area of Phahonyothin freight yard near presentBang Sue Grand Station, this road formerly known as Yan Phaholyothin Road.
• Kamphaeng Phet 1 Road (ถนนกำแพงเพชร 1) – is the road runs parallel to Phahonyothin Road outbound from the starting point of Kamphaeng Phet Road to meet withVibhavadi Rangsit Road atLat Phrao Square.
• Kamphaeng Phet 2 Road (ถนนกำแพงเพชร 2) – separate itself from Kamphaeng Phet Road in front of the Or Tor Kor (OTK) Market, pass in front ofJJ Mall andBangkok Bus Terminal (Chatuchak), also known as Mo Chit 2 to meetRatchadaphisek Road at Ratchavipha Interchange.

• Kamphaeng Phet 3 Road (ถนนกำแพงเพชร 3) – is the road linking Kamphaeng Phet 1 Road and Vibhavadi Rangsit Road. The road also known as "Lang Suan Chatuchak Road" (ถนนหลังสวนจตุจักร, "behind Chatuchak park road"), because it passes through rear ofChatuchak Park and ends at Vibhavadi Rangsit Road near the entrance ofVachirabenjatas Park, or colloquially known as Rot Fai Park. BMA once had a project to disable this road to combine the three parks together, Chatuchak Park, Queen Sirikit Park, and Vachirabenjatas Park under the name "Chatuchak Metro Park" (อุทยานสวนจตุจักร).^[1][2]
• Kamphaeng Phet 4 Road (ถนนกำแพงเพชร 4) – the shortest road among Kamphaeng Phet Series Roads, linking Kamphaeng Phet 2 Road and Kamphaeng Phet 3 Road in front ofQueen Sirikit Park,Bangkok Children's Discovery Museum, andMixt Chatuchak.
• Kamphaeng Phet 5 Road (ถนนกำแพงเพชร 5) – is the road along the railway line parallel to Sawankhalok Road, starting from Rama VI Road in Chitralada Wye area. The road along the railway went north to meet with Rama VI Road in the area of the Phahonyothin freight yard. This road also passes throughSam Sen railway station, which is parallel to the entire length of the Thoet Damri Road.
• Kamphaeng Phet 6 Road (ถนนกำแพงเพชร 6) – the longest road among Kamphaeng Phet Series Roads. It is the road along theNorthern andNortheastern Railway Lines, starting from Kamphaeng Phet 2 Road beside Bangkok Bus Terminal (Chatuchak) northward passing in front ofWat Samian Nari, before ends atRangsit Station (RSI) inRangsit areaThanyaburi District,Pathum Thani Province. This road also known as "Local Road" (ถนนโลคัลโรด), and part in Pathum Thani Province, it will belong to the Department of Highways as "Highway 3508" (ทางหลวงแผ่นดินหมายเลข 3508), the specific distance in Pathum Thani Province is 4.3 km (2.7 mi).^[3]
• Kamphaeng Phet 7 Road (ถนนกำแพงเพชร 7) – is the road along theEastern Railway Line on the north side, parallel toNew Petchburi Road (which is parallel to the railway on the south side).

13°47′53″N100°33′04″E / 13.797939°N 100.551114°E /13.797939; 100.551114