To make things easier, Highway Police have opened extra routes, namely:
North
Highway No 1 (Phaholyothin) between KM329 and KM321 in Nakhon Sawan's Muang district
Highway No 32 (Asian) between KM107+600 and KM102+200 in Singburi's In Buri district
Northeast
Highway No 2 (Mittraphap)
• Between KM266 and KM259 in Khon Kaen's Phon district
• Between KM198 and KM191 from Nakhon Ratchasima's Khong district to Non Sung district
• Between KM67 and KM47 in Nakhon Ratchasima's Pak Chong district
• Between KM36 and KM17 from Nakhon Ratchasima's Pak Chong district to Saraburi's Kaeng Khoi district
Highway No 1 (Phaholyothin)
• Between KM99 and KM74 from Saraburi's Nong Khae district to Ayutthaya's Wang Noi district
• Between KM233 and KM227 in Nakhon Ratchasima's Wang Nam Khiao district
• Between KM125+700 and KM223+700 in Nakhon Ratchasima's Wang Nam Khiao district
Highway No 204 (Nakhon Ratchasima bypass) between KM15+700 and KM14+600
South
• Between KM127 and KM125 to Highway No 35 (Rama II)