By The Nation
The tunnel expected to be fully completed in 2020 and will be ready to connect with the railway system. Measuring 3.6 metres in width and located 30 metres underground, it will connect Chidlom and Lumpini and Chidlom and Sukhumvit. A security system for both flood and fire along with drainage and ventilation are going to be installed. The tunnel will help reduce the risk of high voltage incidents in the event of accidents and flooding while also increasing electricity capacity in the business area.