Document Type

Report

Publication Date

10-2014

Abstract

Vertical delineators are intended to warn drivers of an approaching curve while providing them with a better appreciation of the sharpness of a curve. Drivers can then select an appropriate speed before entering the curve. Delineation can also provide continuous tracking information once drivers are within the curve to help position their vehicles within the travel lane while traversing the curve. The most common type of vertical delineation is post mounted delineators (PMDs). These devices are usually flexible or rigid posts with some amount of reflective surface mounted along the roadside to provide additional delineation. Another treatment that has been used is to provide additional delineation on chevron posts.

Comments

Please note: this summary is part of the website Synthesis of Safety-Related Research <http://www.ctre.iastate.edu/research-synthesis/> which brings together a number of individual reports available in the InTrans collections in this repository.

Sponsors

Iowa Department of Transportation; Federal Highway Administration

Language

English

File Format

PDF

File Size

1 MB

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