Research conducted by the University of Kentucky has determined that experimental tourism signs installed along I-65 in Southcentral Kentucky were successful in attracting tourists. The study concludes that expanding the program is warranted.

Brown signs showing the distance to several attractions in Warren County and Edmonson County were installed along I-65. Signs were also installed for the Kentucky Speedway on I-71 and for Patti's 1880's Settlement on I-24.

Before the sign program can be expanded, the signs must approved by the Federal Highway Administration.

More information: Daily News: Survey shows that tourism signs are successful (Feb. 3, 2003) , Daily News: All state sites would benefit from signs (Editorial, Feb. 4, 2003) 

Update June 1, 2004: These signs are officially known as "Post-Interchange Guide Signs." The Kentucky Transportation Center has produced this 41-page report on The Evaluation of Post-Interchange Guide Signs .