Traffy Fondue is a city problem reporting system that runs as a chatbot in the LINE messaging app. Users send a photo and a location of a problem, such as a pothole, a broken pavement, a dead streetlight or uncollected rubbish, and the system forwards the report to the agency responsible for that area. On 4 March 2026, the Bangkok Metropolitan Administration (BMA) announced that the system had passed 1 million reports completed.
How Traffy Fondue works
The system was developed by the National Electronics and Computer Technology Center (NECTEC), part of the National Science and Technology Development Agency (NSTDA). NECTEC describes it as a platform for receiving and managing city complaints. It uses artificial intelligence (AI) to help sort reports and connects to LINE as a chatbot. The reporter sends a photo with GPS coordinates, the report goes to the responsible agency, the agency updates its status, and the reporter can check progress at any time.
A 2025 study on sustainable cities published in Frontiers in Sustainable Cities describes the process behind the scenes. AI reads each report and sorts it into a category. A workflow system then turns the report into a task and sends it to the agency in charge. Officials see only the reports sent to them. Some reports go on to repair teams or contractors, and some must be assessed and budgeted first. The reporter does not need to know who looks after that spot.
The system began operating in Bangkok in 2022. The same study says a trial in Phuket served as the proof of concept that year. In 2022, NSTDA, the Office of the Permanent Secretary of the Prime Minister's Office and the Department of Local Administration signed a cooperation agreement. It let local administrative bodies use the system free for 3 years, ending in September 2025. When NSTDA published that news, 1,754 agencies were using the system, including 577 city municipalities and 459 subdistrict administrative organizations.
How to report a problem through LINE
Reports are made through the Traffy Fondue chatbot in LINE. Based on the study's description, the steps are:
- Send a message to the Traffy Fondue bot in LINE.
- Choose the menu for a new report. Other menus cover flood reports, a survey and user statistics.
- Share the location on the map. LINE pulls the GPS coordinates automatically.
- Choose the category of the problem.
- Attach a photo and type the details the bot asks for.
- When the report is completed, rate how well the problem was fixed.
The photo and the location matter most, because officials use them to decide where to go and what to fix. A clear photo of the problem and a location that matches the spot help the report reach the right agency faster.
Bangkok's latest results
According to the BMA announcement, since full operation began in 2022 the system has received 1,229,503 reports. Agencies have completed 1,000,113 of them, or 81%. Of the users whose reports were completed, 81% said they were satisfied with the result.
Ekkawaranyu Amrapal, the BMA spokesperson, said common problems such as damaged roads, flooding and power outages are now fixed within 1 to 3 days, compared with several weeks before. The BMA also said many reports are filed outside office hours and that it uses the data from reports to shape city policy. These figures cover BMA reports only.
Use outside Bangkok
The system is used in many provinces. At a knowledge-sharing forum held in 2023 by the Office of the Public Sector Development Commission, 10 provinces had every agency in the province using the system. They were Nakhon Ratchasima, Ubon Ratchathani, Khon Kaen, Phayao, Lamphun, Prachin Buri, Phuket, Phetchabun, Samut Prakan and Saraburi. Chiang Mai and Chachoengsao were preparing to announce province-wide use.
One example from the same forum is Lamphun, which used the system with 104 local offices. Since late 2022 it had received 481 reports and fixed 341 of them, or 71%. Phuket also uses the system to report traffic violations, such as not wearing a helmet.
The provincial data and the Lamphun figures date from 2023. The free-use agreement ended in September 2025, and NSTDA's published material does not say whether free use continues. Anyone outside Bangkok should ask their municipality, subdistrict administrative organization or other local office whether it takes part in the system.
Source: Bangkok Metropolitan Administration (announced 4 March 2026) and the National Science and Technology Development Agency (releases of 26 September 2022 and 15 May 2023), plus a 2025 study in Frontiers in Sustainable Cities.
This article is adapted from ViewNews' Thai-language report.
