K-rail
nounEtymology This term is stipulated in a specification of the California Department of Transportation, who first started using concrete median barriers in the mid-1940s. The reason for the letter K is uncertain.
1
A concrete barrier used to separate lanes of traffic.
- Synonyms
- Jersey barrier, parabolic concrete barrier
- Hyponyms
- concrete step barrier, constant-slope barrier, F-shape barrier, Jersey barrier, Jersey bump, Jersey curb, Jersey wall, Ontario tall wall