TrafFix SLED, Manual

Page: 38 / 60

Revision E (Dated 11/26/12) 36
III. Performance Criteria
The SLED End Treatment shall be tested and pass all test requirements of Report NCHRP - 350
for Test Level 3 (TL - 3) impact conditions for 820 kg and 2000 kg [1808 and 4500 lbs] vehicles
at speeds of 100 km/h [62.5 mph].
The SLED test results shall demonstrate that a water filled gating non - redirective crash cushion
shall safely decelerate the 820C and 2000P impact vehicles and shall not exceed the maximum
allowable occupant risk values.
Occupant impact velocity
Maximum allowable:12 m/s for occupant
Ride down acceleration
Maximum allowable: 20 G
Detached debris shall not show potential for penetrating the vehicle occupant
compartment or present a hazard to other traffic, pedestrians, or workers in a work zone.
A vehicle impacting the TrafFix SLED End Treatment shall remain upright during and after the
collision.
The impacting vehicle’s intrusion into adjacent traffic lanes shall be minimized.