United States Department of Transportation
i
Test matrices for evaluating cable median barriers placed in v-ditches.
-
2012-07-01
-
[PDF-3.47 MB]
Details:
-
Creators:
-
Corporate Creators:
-
Corporate Contributors:
-
Subject/TRT Terms:
-
Publication/ Report Number:
-
Resource Type:
-
Geographical Coverage:
-
Edition:Final report.
-
Corporate Publisher:
-
Abstract:Cable barrier systems designed to be used in median ditches have been traditionally full-scale crash tested placed either
within 4 ft from the slope break point (SBP) of a 4H:1V front slope or near the bottom of the ditch. Recently, there has been
some discussion about proposing specific standard test conditions for cable barrier systems which are designed to be placed
in a median ditch.
The objective of this research was to propose a matrix of critical tests for cable barriers placed in median V-ditches. Critical
tests were proposed based on the identification of those locations where the potential for override/underride is more likely,
as indicated by an analysis of the simulated bumper trajectory of small cars, passenger sedans, and pickup trucks when
trespassing a median V-ditch. The bumper trajectories as well as the vehicle kinematics were obtained using LS-DYNA
computer simulations considering different ditch widths and slopes. Results from previous full-scale crash tests of cable
systems placed in V-ditches were also considered in the assessment of the test matrices.
-
Format:
-
Funding:
-
Collection(s):
-
Main Document Checksum:
-
Download URL:
-
File Type:
