Driving on the Phnom Penh–Sihanoukville Expressway: Know the Speed Limits by Vehicle Type for Safety

To enhance safety during the Pchum Ben festival, drivers traveling on the Phnom Penh–Sihanoukville expressway should clearly understand the minimum and maximum speed limits set for each type of vehicle. The lowest (minimum) and highest (maximum) speeds for the expressway are set as follows: - Speed 60–120 km/h: family cars/light-duty vehicles - Speed 60–100 km/h: heavy-duty vehicles without semi-trailers, or motorcycles of 500cc/27kW and above - Speed 60–80 km/h: vehicles towing trailers, semi-trailers, or towing recreational vehicles Where signs indicate a maximum speed limit, drivers must strictly observe the limit shown on the sign, rather than the general maximum speed based on vehicle type. Separately, on curves and at entries from side roads onto the expressway, drivers must first reduce their speed to 40 km/h before increasing to 60 km/h, in line with the specified conditions. In addition, at locations requiring drivers to slow down, rumble stripes are installed to provide warning signals and help drivers stay alert in time. Therefore, road users should observe the designated speed limits, watch for traffic signs, and reduce speed at high-risk locations to help safeguard lives and reduce traffic accidents.