The stuff we put on the side of the road is ugly. Sometimes there is a reason for the ugliness (yellow is more visible), but often there isn't. Here is a photo from New Westminster, British Columbia, Canada (thank you Margaret Gibbs of Opus International Consultants).
Here is a You Tube Video of the Signal Art Program in North Richland Hills, TX (thanks Scott Booker of Campbell Technology Corporation). I
applaud the folks in New Westminster and North Richland Hills for turning an ugly silver traffic
signal cabinet into a work of art. What other traffic engineering
structures could be beautified?