On July 16, the flood peak passed through Hubei province. Several arterial roads in Enshi urban areas were flooded. The flood situation was quite serious. Many traffic facilities were submerged. After the flood, our Ulit technicians got to the scene as soon as possible to clear the signal controllers which were full of mud inside. After a series of cleaning and drying, the controllers can work smoothly like new controllers. The traffic order in this area was recovered. After the heavy flood, the signal controllers can still work so steadily! How tough the controllers of Ulit are!