New Initiatives Current initiatives 1.
Reference markers are signs designed to improve emergency responses to highway incidents.
Each blue reference marker includes the direction of travel, route number, and mile number. Reference markers are placed every two-tenths of a mile along the median of the highway. The signs are installed on the Beltline and portions of the Interstate. Faster emergency responses Faster removal of traffic incidents Fewer crash related delays and secondary crashes Future initiatives 1. Ramp meters Ramp meters are traffic signals located on entrance ramps of freeways.