TL-5 Barrier Rating – Technical Specification Guide
Test Level Overview
| Parameter | Specification | Tolerance | Purpose |
|---|---|---|---|
| Test Speed | 80 km/h | +2/-0 km/h | Maximum containment |
| Impact Angle | 15 degrees | ±1.5° | Heavy vehicle |
| Vehicle Mass | 36,000 kg | ±300 kg | Design vehicle |
| Impact Energy | 595.3 kJ | ±10 kJ | Energy absorption |
| Deflection Limit | 1.0m | +0.2m | Working width |
Vehicle Test Requirements
| Vehicle Type | Mass (kg) | Speed (km/h) | Angle (°) | Exit Box Criteria |
|---|---|---|---|---|
| Tractor-Trailer | 36,000 | 80 | 15 | Required |
| Single Unit Truck | 8,000 | 80 | 15 | Required |
| Pickup Truck | 2,270 | 100 | 25 | Required |
| Passenger Car | 1,100 | 100 | 25 | Required |
| Occupant Risk | THIV ≤33 ft/s | PHD ≤20g | ASI ≤1.4 | Required |
Performance Criteria
| Criterion | Requirement | Measurement | Acceptance |
|---|---|---|---|
| Structural Adequacy | A,B,C | No penetration | Pass/Fail |
| Occupant Risk | D,F,H,I | Within limits | Pass/Fail |
| Vehicle Trajectory | L,M | Controlled exit | Pass/Fail |
| Heavy Vehicle Stability | J | No rollover | Pass/Fail |
| Working Width | W4 max | ≤1.0m | Measure |
Compliant Barrier Systems
| Barrier Type | Height (mm) | Width (mm) | Reinforcement | Application |
|---|---|---|---|---|
| Heavy Duty Concrete | 1370 | 610 | Double mat | Bridge parapets |
| Single Slope HD | 1370 | 610 | Enhanced steel | High risk areas |
| Vertical Wall HD | 1370 | 450 | Double cage | Limited space |
| Modified Safety Shape | 1370 | 610 | Heavy duty | Hazard protection |
| Steel Bridge Rail HD | 1370 | 400 | Structural steel | Bridge edges |
Installation Requirements
| Parameter | Specification | Tolerance | Verification |
|---|---|---|---|
| Foundation | 300mm Type 1 | ±25mm | Compaction test |
| Alignment | String line | ±10mm | Survey check |
| Level | Design grade | ±10mm | Digital level |
| Joint Width | 20mm | +5mm/-0mm | Gap measure |
| Anchoring | As designed | ±3mm | Template check |
Reinforcement Details
| Location | Bar Size | Spacing | Cover |
|---|---|---|---|
| Vertical Face | #6 (19mm) | 150mm | 75mm |
| Horizontal Face | #5 (16mm) | 200mm | 75mm |
| Base Section | #8 (25mm) | 150mm | 100mm |
| Top Section | #6 (19mm) | 150mm | 75mm |
| Stirrups | #4 (13mm) | 200mm | N/A |
Maintenance Schedule
| Component | Frequency | Check Points | Action Required |
|---|---|---|---|
| Structure | Monthly | Damage/cracks | Document/Repair |
| Joints | Monthly | Integrity/alignment | Adjust/Replace |
| Anchors | Quarterly | Tightness/corrosion | Tighten/Replace |
| Drainage | Monthly | Blockage/flow | Clean/Repair |
| Impact Areas | After incident | Structural integrity | Assess/Replace |
Repair Criteria
| Damage Type | Assessment | Action | Timeline |
|---|---|---|---|
| Structural Damage | Any | Replace unit | 12 hours |
| Surface Spall | >50mm | Patch repair | 48 hours |
| Joint Damage | Any | Replace hardware | 24 hours |
| Alignment | >15mm | Realign | 48 hours |
| Foundation Issue | Any | Investigate/Repair | 12 hours |
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The content on PossessionPlanning.com is for informational purposes only. We make no guarantees regarding completeness or reliability. PossessionPlanning.com is an independent platform, not affiliated with or endorsed by any
rail
operator or government agency. Read our
Terms of Use.
The content on PossessionPlanning.com is for informational purposes only. We make no guarantees regarding completeness or reliability. PossessionPlanning.com is an independent platform, not affiliated with or endorsed by any
rail
operator or government agency. Read our
Terms of Use.
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