Bielenberg, R., Stolle, C., & Faller, R. K. (2023). Crashworthy Perforated Square Steel Tube (PSST) Mailbox Support – Phase I (Report No. SPR-FY21(010)). Nebraska. Department of Transportation. https://rosap.ntl.bts.gov/view/dot/72579
Bielenberg, R.W., C.S. Stolle, and R. K. Faller. Crashworthy Perforated Square Steel Tube (PSST) Mailbox Support – Phase I. Report no. SPR-FY21(010). Nebraska. Department of Transportation, 2023. https://rosap.ntl.bts.gov/view/dot/72579.
Bielenberg, R.W., et al. Crashworthy Perforated Square Steel Tube (PSST) Mailbox Support – Phase I. Nebraska. Department of Transportation, 2023, Report no. SPR-FY21(010), ROSA P. https://rosap.ntl.bts.gov/view/dot/72579.
Federal requirements have made it mandatory that safe mailbox support systems be designed to yield or breakaway when impacted by a vehicle. The Nebraska Department of Transportation (NDOT) has previously used a non-proprietary, U-channel post mailbox support that was evaluated at the Midwest Roadside Safety Facility (MwRSF) in the 1980's. NDOT desires that the mailbox support be updated to meet MASH 2016 TL-3 safety performance criteria and be redesigned to use perforated square steel tubing (PSST) for the mailbox support post.
Bielenberg, R., Stolle, C., & Faller, R. K. (2023). Crashworthy Perforated Square Steel Tube (PSST) Mailbox Support – Phase I (Report No. SPR-FY21(010)). Nebraska. Department of Transportation. https://rosap.ntl.bts.gov/view/dot/72579
Bielenberg, R.W., C.S. Stolle, and R. K. Faller. Crashworthy Perforated Square Steel Tube (PSST) Mailbox Support – Phase I. Report no. SPR-FY21(010). Nebraska. Department of Transportation, 2023. https://rosap.ntl.bts.gov/view/dot/72579.
Bielenberg, R.W., et al. Crashworthy Perforated Square Steel Tube (PSST) Mailbox Support – Phase I. Nebraska. Department of Transportation, 2023, Report no. SPR-FY21(010), ROSA P. https://rosap.ntl.bts.gov/view/dot/72579.
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