Here's a great example of way too many signs. This photo was taken near my home in central Virginia, but some states like Pennsylvania are even worse. Look at the confusion caused by having so many highway and commercial signs in very close proximity. One of my "favorites" is the "slippery when wet" sign -- isn't every road more slippery when wet OR if this segment is particularly slippery, why doesn't the state department of transportation fix the pavement? I also love those "signal ahead" signs placed just ahead of the traffic signal. If you can't see the signal, you're certainly not going to notice the sign! And this signal is in an obviously congested area and only 2 miles from the last signal. Talk about unnecessary expense and clutter!See this for another take on the same subject from the BBC.