Some experts pointed out that China's urban planning lacks the necessary meteorological demonstration, and the construction of tall buildings in the city is towering and dense, hindering the ventilation cycle of the city. Relevant data show that the average wind speed in many domestic cities has dropped by 10% in recent years. The decrease of wind speed means that the atmospheric diffusion capacity is weakened, which leads to the prolongation of the retention time of atmospheric pollutants, which is easy to form haze weather and heat island effect. For this reason, some experts have put forward the idea of establishing urban air ducts, that is, to create several unobstructed ventilation corridors in the city
The wind comes from all directions, and the idea of urban wind tunnel is too subjective and random
that the wind can enter and leave the city more freely and promote the renewal and circulation of urban air.