The Highway Police clarified that the heavy traffic congestion on the M6 expressway near Pak Chong yesterday was caused by an accident, along with many vehicles crossing the median to overtake stopped traffic before squeezing ahead, which severely disrupted traffic flow.
On 28 Dec 2025 GMT+7, Pol. Maj. Gen. Pornsak Laorujiralai, highway police chief, said he ordered Pol. Col. Kukkong Disawat, commander of Unit 8, highway police division, to deploy traffic police to assist motorists using the M6 expressway for returning home or traveling to various provinces.
Around 14:00 on the same day, reports from Pol. Col. Kukkong Disawat and Pol. Lt. Col. Prin Krotmanee of highway police unit 3, division 8, indicated a vehicle accident at km 98 on the M6 near Pak Chong heading towards Nakhon Ratchasima reduced traffic lanes from three to two. Heavy traffic volume began causing congestion with queues stretching nearly 10 kilometers.
Frustrated drivers began crossing the grassy median, which was shallow and not designated for crossing, to overtake and cut in front, prompting many others to imitate this behavior. Vehicles also used U-turn lanes designated for official use to cross to the opposite side, creating a three-kilometer queue spanning all three lanes from front to back.
Highway police from unit 3, division 8 swiftly closed all U-turn points by placing barriers and ropes to block possible crossing points, setting up long cordons and intermittent barriers to prevent further illegal crossing.
Authorities then notified all relevant units, including the highway department, rescue teams, and tow trucks, to close U-turns whenever used and not leave them open. Public announcements were made online warning drivers to use only designated lanes, with violations subject to penalties. After about an hour, traffic flow returned to normal.
The highway police chief added that since this morning, traffic on the M6 expressway has been moderate and smooth without problems.