Does Longxi County, Gansu Province need tire chains to walk at high speed?

Don't. Don't use snow chains on expressways. In weather where snow chains are needed, expressways are generally closed to traffic. Using snow chains will cause damage to the ground. The traffic on the expressway is very busy every day, and the continuous passage of snow chains will cause great damage to the road. Snow chains can't travel at high speed, and the speed can't exceed 40km/h, while the speed on expressways is generally 80km.