Natwerk Designs

Why does the city of Chicago use unique street light fixtures?

I've never seen street lights like those in Chicago anywhere else in the world. They have conical glass lenses rather than the standard lens. It seems that these fixtures are being replaced by more modern ones on main streets. A picture of one of these odd fixtures is at http://picasaweb.google.com/lingendj/Chicago/photo#5234968248753965730. Could anyone please tell me why these fixtures are different from those in other cities or who designs and manufactures them?

Public Comments

1. Wait till you drive through this street! http://oldpa.org/Pictures/WEIRD%20PICS/slides/stoplight.jpg http://blog.wired.com/underwire/images/2007/09/10/trafficlightssized.jpg