Document Type

Report

Publication Date

10-2014

Abstract

Chevrons provide additional empha­sis and guidance for drivers. If spaced properly, chevrons can delineate the curve so drivers can interpret the sharp­ness of the curve. Table 2C-2 of the Manual on Uniform Traffic Control Devices (FHWA 2009a) recommends the size of chevron alignment (W1-8) signs by roadway type. Several agencies, including the Iowa Department of Transportation (Iowa DOT), have applied a larger chevron size to a roadway than suggested by this table. The idea is that larger chevrons will be more prominent and visible to drivers. These larger chev­rons may be particularly useful if sight distance issues exist.

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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