TVIS is a free Android app developed by NECTEC under the category of Travel & Navigation. It is an automatic system that provides traffic information in Bangkok. This app is specifically designed for the Bangkok region and is equipped with an integrated speech recognition system that allows users to request traffic information via voice. Users can simply say the name of a major road in Bangkok to obtain real-time traffic information.

One of the most impressive features of TVIS is its ability to retrieve CCTV images to show the current traffic situation. This feature helps users to make informed decisions about their travel routes and avoid congested roads. TVIS is a great app for anyone living in Bangkok or visiting the city who wants to stay updated on the traffic situation in real-time.