Effect of Chain-Link Fence Attachment on the Crash Performance of an H1 Containment Level Safety Barrier

Abstract

Longitudinal barriers are among the road safety equipment used to prevent vehicles from leaving the roadway. These systems are designed to be lightweight for economic reasons without compromising their structural adequacy. In this study, the effect of chain-link fence on impact severity and structural performance of a longitudinal barrier was investigated through finite element (FE) analyses. An H1 containment level longitudinal barrier FE model was validated using real crash test results. After modifying the validated system to reduce its weight, crash test simulations (TB11 and TB42) were conducted on the modified system, both with and without chain-link fence attachment. The chain-link fence was placed below the rail and in traffic side of post, in a manner that had not been applied before. FE analyses found that the chain-link fence minimally altered TB11 test performance. In TB42 simulations without a chain-link fence, the vehicle climbed over the rail, resulting in test failure. However, when chain-link fence is used, same barrier contained and redirected the vehicle, leading to a successful test. It was concluded that using chain-link fences can enhance the crash performance of longitudinal barriers by limiting the barrier lateral deformation. Further detailed studies, supported by real crash tests, on the placement of fences in barriers are recommended.

Keywords

• Longitudinal barrier
• Crash simulation
• Finite element analysis
• Chain-link fence
• EN 1317

References

1. [1]Road restraint systems - Part 2: Performance classes, impact test acceptance criteria and test methods for safety barriers including vehicle parapets, EN 1317-2, European Committee for Standardization, Brussels, Belgium, 2010.
2. [2] A. M. Molan, M. Moomen, and K. Ksaibati, “Investigating the effect of geometric dimensions of median traffic barriers on crashes: Crash analysis of interstate roads in Wyoming using actual crash datasets,” J. Safety Res., vol. 71, pp. 163–171, 2019.
3. [3] A. M. Molan and K. Ksaibati, “Impact of side traffic barrier features on the severity of run-off-road crashes involving horizontal curves on non-interstate roads,” Int. J. Transp. Sci. Technol., vol. 10, no. 3, pp. 245–253, 2021, doi: https://doi.org/10.1016/j.ijtst.2020.07.006.
4. [4] T.-L. Teng, C.-C. Liang, C.-Y. Hsu, C.-J. Shih, and T.-T. Tran, “Impact performance of W-beam guardrail supported by different shaped posts,” Int. J. Mech. Eng. Appl., vol. 4, no. 2, pp. 59–64, 2016.
5. [5] A. O. Atahan and A. O. Yucel, “Laboratory and field evaluation of recycled content sign posts,” Resour. Conserv. Recycl., vol. 73, pp. 114–121, 2013, doi: https://doi.org/10.1016/j.resconrec.2013.02.002.
6. [6] C. Silvestri-Dobrovolny, R. Bligh, M. Kiani, and A. Zalani, “Evaluation of Attachments to Concrete Barrier Systems to Deter Pedestrians—Volume 1: Technical Report,” Texas, USA, No. FHWA/TX-23/0-7082-R1-Vol1, 2023.
7. [7] C. Silvestri-Dobrovolny, R. P. Bligh, M. Kiani, A. Zalani, W. J. L. Schroeder, and D. L. Kuhn, “Evaluation of Attachments to Concrete Barrier Systems to Deter Pedestrians—Volume 2: Crash Report,” Texas, USA, No. FHWA/TX-23/0-7082-R1-Vol2, 2023.
8. [8] C. Silvestri Dobrovolny, S. Shi, J. Kovar, and R. P. Bligh, “Development and Evaluation of Concrete Barrier Containment Options for Errant Motorcycle Riders,” Transp. Res. Rec., vol. 2673, no. 10, pp. 14–24, 2019, doi: 10.1177/0361198119845900.

9. [9] T.-L. Teng, C.-C. Liang, and T.-T. Tran, “Effect of various W-beam guardrail post spacings and rail heights on safety performance,” Adv. Mech. Eng., vol. 7, no. 11, p. 1687814015615544, Nov. 2015, doi: 10.1177/1687814015615544.
10. [10] A. Ö. Yücel, A. O. Atahan, T. Arslan, and U. K. Sevim, “Traffic Safety at Median Ditches: Steel vs. Concrete Barrier Performance Comparison Using Computer Simulation,” Safety, vol. 4, no. 4, 2018, doi: 10.3390/safety4040050.
11. [11] Z. Ren and M. Vesenjak, “Computational and experimental crash analysis of the road safety barrier,” Eng. Fail. Anal., vol. 12, no. 6, pp. 963–973, 2005, doi: https://doi.org/10.1016/j.engfailanal.2004.12.033.
12. [12] Ł. Pachocki and D. Bruski, “Modeling, simulation, and validation of a TB41 crash test of the H2/W5/B concrete vehicle restraint system,” Arch. Civ. Mech. Eng., vol. 20, no. 2, p. 62, 2020, doi: 10.1007/s43452-020-00065-7.
13. [13] A. O. Atahan, A. O. Yucel, and O. Guven, “Development of N2–H1 Performance-Level Guardrail: Crash Testing and Simulation,” in Transportation Research Circular, E-C172, 2013.
14. [14] S. Tahmasbi, A. Giacomini, C. Wendeler, and O. Buzzi, “3D finite element modelling of chain-link drapery system,” in ISRM EUROCK, ISRM, 2018, p. ISRM-EUROCK.
15. [15] T. T. Le Hoang, H. Masuya, Y. Nishita, and T. Ishii, “Experimental and numerical impact models of protection fences,” Int. J. Prot. Struct., vol. 11, no. 1, pp. 90–108, 2020, doi: 10.1177/2041419619852367.
16. [16] Road restraint systems - Part 1: Terminology and General Criteria For Test Methods, EN 1317-1, European Committee for Standardization, Brussels, Belgium, 2010.
17. [17] Transpolis SAS, “Barrier for Road edge and Median W-beam - TB11,” TRANSPOLIS S.A.S., Saint-Maurice-de-Rémens, France, 2021.
18. [18] Transpolis SAS, “Barrier for Road edge and Median W-beam - TB42,” TRANSPOLIS S.A.S., Saint-Maurice-de-Rémens, France, 2021.
19. [19] LS-DYNA Keyword User’s Manual, LSTC, Livermore Software Technology Corporation: Livermore, CA, USA, 2012.
20. [20] Road restraint systems - Validation and verification process for the use of virtual testing in crash testing against vehicle restraint system, BS EN 16303:2020, BSI Standards Publication, 2020.
21. [21] Finite element model archive, NCAC, FHWA/NHTSA National Crash Analysis Center, George Washington University, Apr. 2008 [Online] Available: http:// www.ncac.gwu.edu/vml/models.html.
22. [22] Guneycelik, “Chain-link fence technical specifications,” guneycelik.com.tr. https://www.guneycelik.com.tr/Tr/tel-orgu.html (accessed Jan. 1, 2024).
23. [23] Yapimtel, “Galvanized chain-link fence,” yapimtel.com.tr. https://yapimtel.com.tr/urunler/galvaniz-orgu-teli/ (accessed Jan. 1, 2024).
24. [24] Steel wire and wire products for fencing and netting - Part 6: Steel wire chain link fencing, TS EN 10223-6, Turkish Standard, Turkish Standards Institution, Ankara, 2013.
25. [25] Te-fence, “Chain-link fence,” te-fence.com. https://te-fence.com/chain-link-fence/ (accessed Jan. 1, 2024).