For example, some 3M lights on an SPUI interchange along King's Highway 406 in Ontario:
http://www.thekingshighway.ca/PHOTOS-4/hwy406-5_lg.jpg
http://www.thekingshighway.ca/PHOTOS-4/hwy406-8_lg.jpg
Has any other countries used Programmable Visibility Signals outside of the United States?