The Transport Ministry opened the Bang Pa-in–Pak Chong section of motorway M6 (about 110 km) for free trial use every Friday 12:00 to Sunday 24:00. The next trial weekend is 28–30 August 2026. Drivers report saving about 1–2 hours on the route to Nakhon Ratchasima, and over 60,000 vehicles used the trial in the first weekend. If your deliveries, sales trips or staff travel run between Bangkok and the Saraburi, Pak Chong or Nakhon Ratchasima corridor, plan routes around the open weekends. The ministry says it will close the road again after each trial to finish the remaining work, so do not build it into weekday schedules.