Googling, I've seen the rough figures from $1,000 to $10,000 (USD) a year to maintain a traffic signal -- all over the place for sure, but the €5300/yr cost doe

Googling, I've seen the rough figures from $1,000 to $10,000 (USD) a year to maintain a traffic signal -- all over the place for sure, but the €5300/yr cost doesn't appear to be that out of line. However I can't Google a really good breakdown of costs. My assumption is that the bigger percentage of that is maintenance. There are three lights in the Google street view. Assuming these are old incandescent bulbs and Germany's high kWh price, electricity costs would be roughly be about €1500 at most a year (assuming €0.35 per kWh, 150 watt bulbs, and 3 lights "always on"). Maybe add another €500 at most for the controller although it probably should cost less than that. (LED lights would drop this part of the bill a lot, too.) However, there is probably some maintenance costs for both the controller and the light: changing all bulbs yearly (if incandescent), cleaning the bulb lenses, controller maintenance (wiring checks, etc.), etc. I imagine that the bulk of the costs would fall here: labor costs plus some equipment costs (trucks, tools, etc.). A) http://pugetsoundblogs.com/roadwarrior/2012/09/25/comparing-costs-of-roundabouts-and-traffic-signals/ http://pugetsoundblogs.com/roadwarrior/2012/09/25/comparing-... B) http://bmtsonline.com/sites/default/files/Reports%20and%20Documents/FINAL%20Traffic%20Signal%20Maintenance%20Consolidation%20Study.pdf http://bmtsonline.com/sites/default/files/Reports%20and%20Do...