The Department of Highways has vowed to quickly fix signs and resolve GPS issues that drivers have blamed for unwanted detours onto Motorway M81 from Bang Yai in Nonthaburi to Kanchanaburi.
The issue gained traction after a viral Facebook post described one user’s distressing experience: ‘The worst thing happened. The mall (Central Westgate) required a left turn, but Maps said right – and I ended up on M81 heading to Kanchanaburi with no way out. I cried while driving.’
Other users responded with similar stories, citing the route’s complexity and the need for heightened awareness.
In response, the department acknowledged the confusion and pledged to improve the signage and road markings.
The department is expediting the installation of clearer directional signs and road surface markings, especially at key junctions like Bang Yai (Rattanathibet Road). These updates aim to help drivers distinguish between the motorway entrance and local destinations during the trial phase of M81.
The measure also involves coordinating with navigation app providers to update entry/exit points, toll booth locations and operational hours. The goal is to minimise misinformation and achieve real-time accuracy for users relying on GPS navigation.
Also, there will be alternate exit guidance for drivers who mistakenly enter the M81. The department recommends exiting at the Nakhon Chai Si toll gate, turning onto Highway 3233, and making a U-turn to rejoin M81 toward Bang Yai. The detour takes approximately 15 minutes.
The department reaffirmed its commitment to resolving the issue swiftly and, in the meantime, urged motorists to consult official entry/exit maps and plan routes carefully.