(2014) Chevrons and Oversized Chevrons, 2014. Transportation, Department of
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IADOT_InTrans_Hallmark_Chevrons_Oversized_Chevrons_tech_summary_2014.pdf File Size:240kB |
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.
| Item Type: | Departmental Report |
|---|---|
| Keywords: | Countermeasures, Highway Safety, Ran off road crashes, Rural highways, Signs, Symbol signs, Traffic control devices, Traffic safety, |
| Subjects: | Transportation Transportation > Roads and highways Transportation > Traffic safety Transportation > Equipment |
| ID Code: | 19248 |
| Deposited By: | Leighton Christiansen |
| Deposited On: | 06 Apr 2015 11:14 |
| Last Modified: | 06 Apr 2015 11:14 |
| URI: | https://publications.iowa.gov/id/eprint/19248 |