(2014) Vertical Delineation, 2014. Transportation, Department of
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IADOT_InTrans_Hallmark_Vertical_Delineation_Tech_Brief_2014.pdf File Size:739kB |
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.
| Item Type: | Departmental Report |
|---|---|
| Keywords: | Countermeasures, Highway curves, Highway delineators, Highway Safety, Perception, Reflective signs, Road markings, Rural highways, Safety, Traffic control devices, Traffic safety, Traffic signs, Visibility |
| Subjects: | Transportation Transportation > Roads and highways Transportation > Traffic safety Transportation > Equipment |
| ID Code: | 19253 |
| 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/19253 |