United States Department of Transportation
i
Longitudinal channelizing devices along business entrances in work zones.
-
2015-04-01
[PDF-2.63 MB]
Details:
-
Creators:
-
Corporate Creators:
-
Subject/TRT Terms:
-
Publication/ Report Number:
-
Resource Type:
-
Geographical Coverage:
-
Corporate Publisher:
-
Abstract:This report documents the efforts and results of research to evaluate the effectiveness of alternatives to the
use of channelizing drums for driveway delineation in work zones. The Florida Department of
Transportation (FDOT) had originally sought to investigate the use of blue-striped channelizing devices but
ultimately decided to examine the effectiveness of low-profile longitudinal channelizing devices (LCDs).
LCDs are already an accepted device in the Manual on Uniform Traffic Control Devices and so would not
require changes to the manual in order to be used on projects. The LCDs were compared against standard
drum delineation in both a closed-course study and a field study in Florida work zones. The researchers used
erratic maneuvers, speed profiles, and driveway user surveys as measures of effectiveness. The results
indicated that there were no significant differences in the erratic maneuvers and speeds of turning vehicles
that were attributable to the treatments. However, the survey results showed that drivers prefer LCDs over
drums for helping them identify driveway openings. Meanwhile, other studies outside of Florida have shown
that using LCDs instead of channelizing drums at a driveway improves driver ability to locate that driveway.
Considered in total, researchers recommend that FDOT consider modifying its driveway delineation standard
to allow LCD use. The standards should include requirements that they be delineated and that they be
properly ballasted.
-
Format:
-
Collection(s):
-
Main Document Checksum:
-
Download URL:
-
File Type:
