Gregory Industries (formerly STI) TTMA-100 Flexible Affordable Safety Hardware
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Overhead view of small car impact |
GSI Highway Products is the exclusive distributor of the Gregory Industries (formerly STI) trailer truck mounted attenuator, the TTMA-100, for Texas and Oklahoma with the ability to sell in markets across the United States, Mexico, and the Middle East.
Competitively priced! Can be equipped with an arrow board or VMS. Contact us today for a free, no oblligation quote! Dave Williams Sales (972) 225-1660 (972) 225-6662 fax State Approval Letters
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| Crash Test Videos for the TTMA-100 |
Click link. Streaming Windows Media (WMV) format. Sizes up to 4M.
Small Car Required Test
Pickup Truck Required Test
Optional Offset Test
Optional Angled Test
Additional Angled Test with Shadow Vehicle Laterally Blocked
| Supporting Documents and Manuals for the TTMA-100 |
| Research / Helps |
- National Work Zone Safety Information Clearinghouse website
- MODOT Truck Mounted Attenuators: TMA Training Online Book
- TxDOT TMA usage, see Traffic Control Plan Standards
- Best practice for use and design of truck mounted attenuators (TMA) for New Zealand road, 2006
- Recommendations for the Application of Truck-Mounted Attenuators (CDOT & IDOT), 2003
- FHWA Workzone Safety Inspection Training Course (1995)
- TRB #182 Performance and Operational Experience of Truck-Mounted Attenuators (1993)
- NCHRP 350, Section 2.3.2.4 Truck-Mounted Attenuators (TMA), 1993
- Performance and operational experience of truck-mounted attenuators, 1992
- TRB#1304, Guidelines for the Use of Truck-Mounted Attenuators in Work Zones, 1991
| In the News - TMAs |
- FHWA issued its long-awaited Final Rule on Temporary Traffic Control Devices
(FR Vol. 72, No. 233, at pages 68480 - 68491) (12-2007) - TTMA saves life of TxDOT employee (11-2007)
- TMA saves lives in WSDOT crash (10-2007)
- Byrne Seeks Safety Device to Prevent Serious Injuries (2007-10)
- MoDOT Workers Worries After Two Trucks Struck (2007-10)
- California DOT requires TMA usage as a part of comprehensive Safety Plan
- Virginia requires the usage of TMAs (1987)