Delineator Definition and Usage
Traffic delineators are important for safely guiding traffic through confusing construction or potentially hazardous road conditions. They offer visible boundaries for areas to help delineate changes in traffic flow, alerting drivers to special road conditions like curved areas of the road, on and off ramps, and other unexpected road changes or potential safety concerns. While the term delineator can be used loosely to refer to any type of traffic delineation device from traffic cones to barrels, usually the term delineator is reserved for the taller traffic control devices with shorter diameter.
General Delineator Specifications
*To make sure you are always following the most up to date requirements when ordering your delineators, consult the MUTCD Guidelines.
- The most important requirements of delineators is that they be visible at a distance in normal atmospheric conditions.
- They must be made to withstand vehicle impact and for this reason are typically made of flexible recycled plastic.
- When using Retroreflective sheeting on a delineator, the sheeting stripes should always be at least 3 inches apart.
- The color of the delineator used should match the color of the road markings.
- Additionally there are specific guidelines depending on whether you are using delineators on the right or left side of the road or marking a ramp.