During the week, at locations close to and with direct line of sight to I-25, noise levels are usually greatest during the a.m. rush hour. Further east, near Cascade Avenue, noise levels peak almost equally during both rush hour periods. The a.m. peak is the result of high traffic volumes on all roads and down valley winds. The p.m. peak is due to high traffic volumes on local roads, particularly Nevada avenue. Near Nevada Avenue, noise levels closely follow Nevada Avenue traffic patterns, which peak during the p.m. rush hour.
Noise levels are greatest during the week.
Sunday is the quietest day of the week. The valley wind patterns in the area play a significant role in noise levels. Winds from the north exacerbate I-25 noise during the morning rush hour and during the late evening.