Page 1
PN 628155 Created February 2022 ™ MATT ® Median Attenuating TREND Terminal Assembly Manual TRINITY HIGHWAY ® Ahead of the Curve...
Page 2
Trinity Highway at (888) 356-2363 or visit TrinityHighway.com/Products. The instructions, illustrations, and specifications are based on the latest MATT™ information available to Trinity Highway at publication. We reserve the right to make changes at any time. Please visit TrinityHighway.com/product-category/end terminals...
Page 3
MATT™ The MATT™ is a tangent, double-sided, re-directive/gating and energy absorbing attenuator/end terminal, for use with various longitudinal highway barriers, in either unidirectional or bidirectional traffic applications, to include roadside, shoulder, median and gore installations. TrinityHighway.com February 2022...
® STEP 2C: MATT™ SYTP With Soil Plate W-Shaped Assembly for Post 3 to 5 ........... 19 STEP 2D: MATT™ Line Post With Soil Plate W-Shaped Assembly for Post 6 ..........20 STEP 3: MATT™ Angle Strut Assembly ...................... 21 STEP 4: MATT™...
Trinity Highway Trinity Highway Products, LLC Customer Service Contacts Trinity Highway is committed to the highest level of customer service. Feedback regarding the , its assembly procedures, supporting documentation, and performance is always MATT™ welcome. Additional information can be obtained from the contact information below:...
(approximately 2,270 356-2363 if you have any questions about kg [5,000 lb.] at 100 kph [62 mph]. instructions in this manual. The MATT™ is tested pursuant to the test matrix WARNING: Safety measures incorporating...
Overview The MATT™ has a system length of 34’-4 1/2” [10.477 m] long and is a tangent, 31” [787mm] (+1” -0”) [+25 mm, -0 mm] high, double-sided, re-directive/gating and energy absorbing attenuator/end terminal available for use with various longitudinal highway barriers, in either unidirectional or bidirectional traffic applications.
Site Preparation The MATT™ has a system length of 34’-4 1/2” [10.477 m], long and is a tangent, 31” [787mm] (+1” -0”) [+25 mm, -0 mm] high, double-sided, re-directive/gating and energy absorbing attenuator/end terminal available for use with various longitudinal highway barriers, in either unidirectional or bidirectional traffic applications.
Post Placement The MATT™ posts are inserted into the soil using an auger or post pounding equipment for placement. If an auger is used, ensure diameter is large enough to allow for proper compaction of state/specifying agency approved fill material. All MATT™ posts must be assembled within established standard construction tolerances, including being plumb.
Page 11
3240G 8” [200 mm] Composite Offset Block (wood is not allowed) Various MATT™ Soil PL, 1/4” x 18” x 24” [6 mm x 457 mm x 610 mm] for Posts 1-2 628273G MATT™ Soil Plate W-Shaped (Multi-Directional) for Posts 3-6 628269G 5/8”...
Components/Hardware MATT™ Below is a pictorial depiction of the components/hardware for MATT™. Please see the Trinity Highway drawings and page 10 of this manual for specific lists of components/hardware and quantities required for MATT™ selected to be assembled. Note: The following components/hardware are not shown to scale .
Page 13
ID: L PN: 628276A ID: J PN: 628338G ID: K PN: 628285A CR Post 1 Bottom MATT™ MATT™ Backing Plate MATT™ CR Post 1 Top ID: M PN: 628271G ID: N PN:628270G ID: O PN: 628279G ® SYTP Holes ®...
Page 14
ID: S PN: 4211G ID: T PN: 3391G ID: U PN: 3360G 5/16” x 1.75” Hex Bolt 5/8” x 1.75” Hex Bolt (A325) 5/8” x 1.25” GR Bolt [8 mm x 44 mm] [16 mm x 44 mm] [16 mm x 31 mm] ID: V PN: 3403G ID: W...
Assembly Steps To ensure an accurate assembly of the MATT™ Terminal, it is recommended that steps be completed in order. ALL STEPS MUST BE COMPLETED. Below ground portions in some assembly steps are not shown for clarity. See Step 16 for bolt/nuts combinations that must be torqued to 65 ft-lb [88 Nm] (+/- 3 ft-lb) [+/- 4 Nm].
4. Ensure that the MATT™ Strut Hole is assembled on the upstream side of the post. 5. Ensure the top of the MATT™ CR Post 1 Bottom With Soil Plate is 4” [100 mm] (+1”, -0”) [+25 mm, -0 mm] above finished grade.
INSTRUCTIONS Reference: SS-6288 628271G 1 EA 3340G 2 EA 1. Assemble the MATT™ Soil Plate (Part MM) to the downstream side of the ® 6’-0” [1.829 m] MATT™ SYTP (Part M) as shown above using specified 628273G 1 EA hardware (Parts BB, OO).
INSTRUCTIONS Reference: SS-6288 628271G 3 EA 3340G 6 EA 1. Assemble the MATT™ Soil Plate W-Shaped (Part NN) to the downstream ® side of the 6’-0” [1.829 m] MATT™ SYTP (Part M) as shown above using 628269G 3 EA specified hardware (Parts BB, OO).
3340G 2 EA 1. Assemble the MATT™ Soil Plate W-Shape (Part NN) to the downstream side of the 6’-0” [1.829 m] MATT™ System Line Post 6 (Part N) as shown 628269G 1 EA above using specified hardware (Parts BB, OO).
(Parts T, Z). 3391G 4 EA 2. Assemble the MATT™ Angle Strut (Part O) with the “toe” of the vertical leg down and fasten to Posts 1 and the MATT™ Adapter Plate at Post 2, using 3361G...
628285A 1 EA 4211G 2 EA 1. Assemble the MATT™ CR Post 1 Top (Part K) to the MATT™ CR Post 1 Bottom as shown in the “MATT™ CR POST 1 TOP ORIENTATION 3245G 2 EA DETAIL” using specified hardware (Parts S, JJ, Y).
113457G 4 EA 1. Assemble the MATT™ Double Spacer (Part H) to the MATT™ SYTP® (Post 2) and MATT™ CR Post 1 as shown above with the Bent Flange 118009G 8 EA Pointed Downward using specified hardware (Parts FF, GG, HH).
628281A 3 EA 3403G 6 EA 1. Assemble the MATT™ hardware (Parts V, AA, BB). 2. Ensure the upstream slotted hole in the MATT™ Single Spacer is bolted 4372G 6 EA ® to the MATT™ SYTP with Soil Plate using the upstream hole in the post.
9’-4 1/2” [2.858 m] as shown above for both sides using specified hardware 3340G 18 EA (Parts U, BB, TT). 2. At this location ONLY, lap the MATT™ 12 Gauge Transition Guardrail With Various 2 EA Fin-4 with the line guardrail system in the direction of the adjacent...
2. Ensure the MATT™ 12 Gauge Slotted Intermediate Guardrail With Fin-3 3361G 12 EA installed between Posts 4 and 5 is lapped to the outside of the MATT™ 12 118615G 12 EA Gauge Transition Guardrail With Fin-4 and fins are positioned upstream.
2. Ensure the MATT™ 12 Gauge Slotted Intermediate With Fin-3 installed 3361G 12 EA between Posts 3 and 4 is lapped to the outside of the MATT™ 12 Gauge 118615G 12 EA Slotted Intermediate Guardrail With Fin-3 installed between posts 4 and 5 3.
2. Ensure the MATT™12 Gauge Slotted Intermediate Guardrail-2 installed 3361G 12 EA between Posts 2 and 3 is lapped to the outside of the MATT™12 Gauge 118615G 12 EA Slotted Intermediate Guardrail With Fin-3 installed between posts 3 and 4.
12 EA outside of the MATT™ 12 Gauge Slotted Intermediate Guardrail-2 3. Ensure the MATT™ Backing Plate is on the outside of the MATT™ 10 Gauge Slotted Front Guardrail-1. 4. Assemble all hardware loosely ensuring bolt is seated for this step.
2. Ensure that the bent portion of the Cable Anchor Bracket Angle [Part Q] at 3910G 2 EA CR Post 1 is up and hooked over the MATT™ CR Post 1 Top. WARNINGS Use only Trinity Highway parts that are specified herein for the MATT™...
628339A 2 EA 118614G 8 EA 1. Assemble the MATT™ 10 Gauge Head Rail (Part F), 1’-9 3/4” [552 mm] to the MATT™ 10 Gauge Slotted Front Guardrail-1 as shown above for both 3361G 8 EA sides using specified hardware (Parts W, CC, EE, Z).
1 EA 1. For median/roadside application, attach the Delineation Sheeting (Part YY) 105379B 1 EA to the MATT™ Impact Head (Part A) as shown above. Rotate as appropriate. 2. For gore application, attach the Delineation Sheeting (Part ZZ) to the 105380B 1 EA MATT™...
118615G 2 EA 5/8” Heavy Hex Nut used to assemble the MATT™ Head Tube to the MATT™ Impact Head to 65 ft-lb [88 Nm] (+/- 3 ft-lb) [+/- 4 Nm] using a calibrated torque wrench. 628342B, from Step 13 WARNINGS Use only Trinity Highway parts that are specified herein for the MATT™...
2. Insert 5/8” x 2” GR Bolt through the delineation sheeting and tighten the 5/8” Heavy Hex Nut used to Assemble the MATT™ Head Tube to the MATT™ Impact Head, to 65 ft-lb [88 Nm] (+/- 3 ft-lb) [+/- 4 Nm] using a calibrated torque wrench.
3. Ensure that the bent portion of the Cable Anchor Bracket Angle (See Step 11) at CR Post 1 is up and hooked over the MATT™ CR Post 1 Top. 4. Restrain the cable with locking pliers and/or a pipe wrench while tightening nut with a wrench, at the end being tightened to avoid twisting the cable.
(p 9) □ Ensure the Strut Hole of the MATT™ CR Post 1 Bottom with Soil Plate is upstream and the Post is 4” [100 mm] (+1”, - 0”) [+25 mm, -0 mm] above the finished grade. (pp 17, 21-22).
Product Description Assembly Manual. MATT™ If no end terminal inspection program exists, Trinity Highway recommends visual drive-by inspections at least once every month and walk-up inspections every six (6) months. These inspections shall, at a minimum, consist of:...
Edition 2011 IMPORTANT: Trinity Highway does not direct grading. Proper site grading must be accomplished before assembly of the MATT™ System in accordance with state/specifying agency guidelines or the AASHTO Roadside Design Guide, whichever is more stringent. Failure to follow this warning could result in serious injury or death in the event of a vehicle impact with the system.
Edition 2011 IMPORTANT: Trinity Highway does not direct grading. Proper site grading must be accomplished before assembly of the MATT™ System in accordance with state/specifying agency guidelines or the AASHTO Roadside Design Guide, whichever is more stringent. Failure to follow this warning could result in serious injury or death in the event of a vehicle impact with the system.
Page 41
NOTES: TrinityHighway.com February 2022...
Page 42
NOTES: TrinityHighway.com February 2022...
Page 43
NOTES: TrinityHighway.com February 2022...
Need help?
Do you have a question about the MATT and is the answer not in the manual?
Questions and answers