MIDWEST STATES POOLED FUND PROGRAM
Additional Funding to Complete Development of a Crash-Worthy Terminal for Midwest Four-Cable, HT, Barrier System
Sponsoring Agency Code
TPF-5(193) Supplement 21
Partial funding was previously approved to perform compliance testing for an end terminal for the fourcable,
high-tension, median barrier system currently under development by the Midwest States Pooled
Fund Program. Additional funding is needed to complete the required compliance test matrix according to
the safety requirements found in MASH-08.
In Pooled Fund Year 17, funding was allocated for the testing of a cable terminal for use with the hightension,
cable median barrier system currently under development at MwRSF. This funding was allocated
as RPFP-07-06: Testing of Cable Terminal for High Tension Cable (1100C & 2270P). A previous
research project had developed an end terminal for a three cable, low-tension barrier that was crash
tested with the 820C vehicle according to NCHRP Report No. 350 with marginal results. The objective of
Project No. RPFP-07-06 was to redesign the three cable, low-tension, end terminal such that it would
function for the four cable, high-tension, median barrier system and meet the safety requirements of
RPFP-07-06 contained funding to run two of the required MASH-08 full-scale crash tests. These two tests
consisted of impacts with the 1100C and 2270P vehicles. It is anticipated that two additional full-scale
tests will be required in order to meet the MASH-08 requirements for end terminals. The anticipated
MASH-08 test matrix is as follows.
1. Test Designation No. 3-30 â€“ Impact of an 1100C vehicle on the end of the terminal at 62 mph and
0 degrees with a 1/4 offset.
2. Test Designation No. 3-32 â€“ Impact of an 1100C vehicle on the end of the terminal at 62 mph and
5 or 15 degrees.
3. Test Designation No. 3-34 â€“ Impact of an 1100C vehicle on the critical impact point (CIP), the
point where the behavior of these devices changes from gating or capturing to redirection, at 62
mph and 15 degrees.
4. Test Designation No. 3-35 â€“ Impact of a 2270P vehicle on the beginning of the length-of-need of
the terminal at 62 mph and 25 degrees.
In addition to these four tests, FHWA has previously required cable end terminal designs to pass a
reverse direction impact on the terminal with a small car. Thus, a fifth test of the system may be required
by FHWA and is budgeted herein.
The project is currently on-hold and waiting for the completion of the HT cable system.
The objective of this research project is to develop of a four cable, high-tension, end terminal for the
Midwest high-tension, cable median barrier system through full-scale crash testing according to the safety
requirements set forth in MASH-08.
As noted previously, there exists a need for approximately three additional full-scale crash tests in
addition to the two previously funded crash tests. All three crash tests will employ the 1100C vehicle.
Once the full-scale crash test matrix is completed, a summary report of the research effort will be written.
Development of a non-proprietary crashworthy terminal is necessary in order to implement the Midwest
four cable, high-tension, cable guardrail system, which can be used on slopes as steep as 4H:1V.
Snapshot of Recent Developments
130 Whittier Research Center
2200 Vine Street
Lincoln, Nebraska 68583-0853
The information contained on the Midwest Roadside Safety Facility (MwRSF) website is subject to change without prior notice. The University of Nebraska and the MwRSF is not responsible or liable, directly or indirectly, for any damage or loss caused or alleged to be caused by or in connection with the use or misuse of or reliance upon any such content, goods, or services available on this site.