PORTABLE HIGHWAY WARNING DEVICE

摘要

A portable highway warning device comprised of one or more rumble strips. Each rumble strip is comprised of a plurality of modular strip sections made of a polymeric material. Each strip section has end edges with alternating notches and tabs sized and spaced for overlapping engagement with respective tabs and notches on opposite end edges of other ones of the strip sections for connecting the end edges of the strip sections together. Embedded in each of the strip sections are a plurality of metal plates or bars that run transversely between side edges of the strip sections in laterally spaced relation from one another to provide ballast to the strip sections.