Blinking red lights throughout night are annoying and unnecessary on industrial wind towers

Tipton County Indiana (east of Kokomo, IN).

The Obstacle Collision Avoidance System (OCAS) is designed to alert pilots if their aircraft is in immediate danger of flying into an obstacle. OCAS uses a low power ground based radar to provide detection and tracking of an aircraft’s proximity to an obstacle such as a wind turbine. This capability allows the visual warning lights to remain passive until an aircraft is detected and known to be tracking on an unsafe heading. This leaves the nighttime sky free of unnecessary light pollution thus decreasing public annoyance issues while improving the environmental habitat. (OCAS video) (light pollution video)

Health Effects Related to Wind Turbine Noise Exposure: A Systematic Review

Tipton County Indiana (east of Kokomo, IN).

This comprehensive review of the literature was published Dec. 4, 2014. The following is part of the “Conclusion” with the entire article here.

“At present it seems reasonable to conclude that noise from wind turbines increases the risk of annoyance and disturbed sleep in exposed subjects in a dose-response relationship. There seems to be a tolerable limit of around LAeq of 35 dB. Logically, accepting higher limits in legislations [sic] may lead to increased numbers of annoyed subjects. It therefore seems reasonable to conclude that a cautious approach is needed when planning future wind farms. Furthermore, there is an indication that noise annoyance and sleep disturbance are related and that disturbed sleep potentially can lead to adverse health effects…”