Australian Signs & Signals
Extensive photo collection of australian signs.
www.hobbiesplus.com.au Details

Bartolomeo: Traffic Signs of the World
Examples of child crossing, construction, and falling rock signs worldwide.
www.elve.net Details

Chinese Traffic Signs
Some images of Chinese signs, but the text is in Chinese.
www.dlutc.gov.cn Details

Danny's Daily's The "Sign" Collection
Humorous examples.
www.dannysdailys.com Details

Diamond Signs
Photograph collection of warning signs.
www-cs-faculty.stanford.edu Details

Evaluation of Traffic Signal Displays for Protected/Permitted Left-Turn Control
Research project studying controls for this movement, addressing such principles as the 'left-turn trap'. Includes animated graphic examples.
projects.kittelson.com Details

France Road Signs
Large collection of French road signs.
www.americansinfrance.net Details

German Traffic Signs, Signals, and Markings
Illustrations and detailed commentary.
www.texhwyman.com Details

Hawaii Road Sign Photos
Many standard and unusual examples.
www.hawaiihighways.com Details