From 10am on Friday 28 August 2026, the Department of Highways opens the M82 elevated motorway from Bang Khun Thian to Ban Phaeo (about 25 km) on a free trial for two years. Cars are capped at 80 km/h and trucks and buses at 65 km/h. Motorcycles, bicycles, tricycles and pedestrians are not allowed on the elevated section; Phetkasem (Rama 2) below stays open. Four entry/exit points are open (Phan Thai Norasing, Mahachai 1 and 2, Ban Phaeo); Samut Sakhon 1 and 2 are not yet open. Tolls and full service are not expected until 2029. For delivery and transport operators on the route to Samut Songkhram, Ratchaburi, Phetchaburi and Prachuap Khiri Khan, this may cut travel time, but plan routes and driver speed limits for the trial period.