Crashworthy Perforated Square Steel Tube (PSST) Mailbox Support

Nebraska Department of Transportation (NDOT) desires that the mailbox support be updated to meet Manual for Assessing Safety Hardware (MASH) 2016 TL-3 safety performance criteria. Very few mailbox supports have been evaluated according to MASH TL-3 specifications. The Texas A&M Transportation Institute (TTI) evaluated locking architectural mailboxes on thin-wall, steel-tube supports to MASH TL-3 (TTI Report No. 9-1002-12-9). A single-mailbox mount was tested and was successful. Two multiple-mailbox (combined standard and locking architectural mailboxes) mounts were tested and both configurations failed to meet MASH TL-3. The mailbox support for multiple mailboxes was subsequently redesigned and resulted in successful MASH TL-3 tests. Due to the limited number of tested mailbox supports, NDOT desired to design and evaluate a MASH TL-3 mailbox support.

Language

• English

Project

• Status: Completed
• Funding: $164,927.00
• Sponsor Organizations:

  Nebraska Department of Transportation

  1500 Nebraska 2
  Lincoln, NE  United States  68502
• Project Managers:

  Halsey, Lieska

• Principal Investigators:

  Bielenberg, Robert

• Start Date: 20200701
• Expected Completion Date: 20230531
• Actual Completion Date: 20230531

Subject/Index Terms

• TRT Terms: Crashworthiness; Design; Mailboxes; Structural supports
• Identifier Terms: AASHTO Manual for Assessing Safety Hardware
• Subject Areas: Design; Highways; Safety and Human Factors;

Filing Info

• Accession Number: 01735891
• Record Type: Research project
• Source Agency: Nebraska Department of Transportation
• Files: RIP, STATEDOT
• Created Date: Apr 7 2020 9:41AM