KTC-01-14
SPR233-00-1F
"Management and Effective Use of Changeable Message Signs", Jennifer Walton, Monica Barrett, Joe Crabtree
ABSTRACT
Changeable message signs (CMS) are used to communicate accurate, timely, and pertinent information to travelers on Kentucky’s roadways. This information helps travelers avoid hazards or delays and respond properly to changing roadway conditions. In an ideal environment, the Kentucky Transportation Cabinet (KYTC) would be able to allocate CMS to various areas of the state based upon changing needs. The location of each sign would be monitored, and the message could be controlled and checked remotely.
Currently these capabilities do not
exist. KYTC has four
different types of portable CMS in use throughout the state. Each type
has different internal and external interfaces, and each requires
different replacement parts. Also,
there is no policy or guidelines in place for the use of these signs.
The decision on how and when the CMS are used is made at the
district level on a case-by-case basis.