CC7 North Post Traffic Testing
Full-scale traffic test began on 09/15/2014 using the NAPTF Test Vehicle (NAPTV) with a six-wheel (3D) configuration (55 kips per wheel) at 2.5 mph. The wheel load was increased to 65 kips after 30,030 loading passes.
After completion of 23,364 passes, traffic tests were terminated in test items LFC5-N and LFS6-N. The test sections were declared failed due to the presence of severe fatigue cracking (alligator cracking). Traffic tests continued on the perpetual pavement test sections (LFP1-N through LFP4-N). Traffic tests were terminated on LFP4-N after completion of 27,192 passes. After completion of 30,030 passes, traffic tests were continued on LFP1-N, LFP2-N, and LFP3-N at an increased wheel load of 65 kips. Traffic tests were terminated on LFP3-N after completion of 35,046 passes due to the presence of severe fatigue cracking. Traffic tests were terminated on LFP1-N and LFP2-N after completion of 37,686 passes with no evidence of any fatigue cracks.