Does the questioner want to ask about "the reason for the loud noise in Mianyang Aolin Spring Phase II"? The traffic flow is large and the speed is fast.

1. Heavy traffic flow: Mianyang Aolin Spring Phase II is located on Jiuzhou Avenue, with a large traffic flow. The passing vehicles include many large trucks. Most of the buses at Pingzheng Station are large vehicles with engines. The sound is loud.

2. Fast vehicle speed: The road section where Olin Spring Phase II is located is basically the steepest section of Jiuzhou Avenue. It is about 700 meters away from the previous traffic light. The vehicles passing by are basically high-speed directly from the previous traffic light. Rushing down, vehicles traveling at high speeds add to the noise.