Construction Cycle 5 (CC5) Traffic Testing Overview

 

Back to CC5 Test Items

A. Gear Configuration

 

Below is the gear configuration for test items.
Two landing gear configurations were used for trafficking the test items; a 6-wheel landing gear and a 10-wheel landing gear. Figure below presents Test Area 1. A pavement centerline that divides the test items into north and south sections is shown. The Figure presents the wheels configurations of sections loaded with 10- and 6-wheel gears on different sides. The Figure also depicts wander zones for each group of wheels. The wander zone of the 10-wheel gear extends on both sides of the centerline in Test Area 1 configuration. In Test Area 2 configuration, however, the 10-wheel gear is contained on one side of the pavement centerline and wander zone stops 10 inches from the centerline as shown.
 


 

C. Wander Pattern

 

 

 

Figure XX Wander Pattern of Sample Sections Loaded with 10-Wheel Gear on North and 6-Wheel Gear on South.

 

Figure XX. Wander Pattern of Sample Sections Loaded with 6-Wheel Gears on Both Sides.

 

 

B. Wheel Loads/Tire Pressure

 

The table below presents wheel loadings for various test items, number of traffic passes during any given test period, and the tire pressure.

 

Test date

Cumulative Pass

Test item with loads (per wheel)

Tire pressure (psi)

8/14/2008 to 10/3/2008

7920

LFC-1NW and LFC-2NE (6-wheel loads 50K lbs.)

LFC-1NE, LFC-2NW (10-wheel loads 50K lbs.)

LFC-3N and LFC-4N (6-wheel loads 59K lbs.)

243

10/7/2008 to 11/7/2008

12540

LFC-1NW and LFC-2NE (6-wheel loads 58K lbs.)

LFC-1NE, LFC-2NW (10-wheel loads 58K lbs.)

LFC-3N and LFC-4N (6-wheel loads 59K lbs.)

243

9/1/2009 to 9/2/2009

12936

LFC-2NE (6-wheel loads 58K lbs.)

LFC-1NW, LFC-1NE, LFC-2NW (10-wheel loads 58K lbs.)

LFC-3N and LFC-4N (6-wheel loads 58K lbs.)

243

9/2/2009 to 9/4/2009

13530

LFC-2NE (6-wheel loads 65K lbs.)

LFC-1NW, LFC-1NE, LFC-2NW (10-wheel loads 65K lbs.)

LFC-3N and LFC-4N (6-wheel loads 65K lbs.)

243

9/8/2009 to 9/24/2009

18612

LFC-1NW and LFC-2NE (6-wheel loads 65K lbs.)

LFC-1NE, LFC-2NW (10-wheel loads 65K lbs.)

LFC-3N and LFC-4N (6-wheel loads 65K lbs.)

243

9/24/2009 to 10/6/2009

22238

LFC-1NW and LFC-2NE (6-wheel loads 70K lbs.)

LFC-1NE, LFC-2NW (10-wheel loads 70K lbs.)

LFC-3N and LFC-4N (6-wheel loads 70K lbs.)

243

10/6/2009

22572

LFC-1NW and LFC-2NE (6-wheel loads 70K lbs.)

LFC-2NW (10-wheel loads 70K lbs.)

LFC-3N and LFC-4N (6-wheel loads 70K lbs.)

243

10/6/2009 to 10/14/2009

27918

LFC-1NW (6-wheel loads 70K lbs.)

   

243

10/14/2009 to 10/15/2009

28312

LFC-1NE (10-wheel loads 70K lbs.)

   

243

7/12/2010 to 8/9/2010

10560

LFC-1SE (6-wheel loads 70K lbs.)

LFC-1SW (10-wheel loads 70K lbs.)

 

243

8/9/2010 to 8/11/2010

12936

LFC-1SE (6-wheel loads 70K lbs.)

   

243

9/15/2010

66

LFC-3S and LFC-4S (10-wheel loads 60K lbs.)

   

243

9/16/2010

132

LFC-3S and LFC-4S (10-wheel loads 65K lbs.)

   

243

9/17/2010 to 11/15/2010

12804

LFC-3S and LFC-4S (10-wheel loads 70K lbs.)

   

243

8/21/2012

12870

LFC-3S and LFC-4S (10-wheel loads 60K lbs.)

   

243

8/21/2012

66

LFC-2SE (6-wheel loads 60K lbs.)

LFC-2SW (10-wheel loads 60K lbs.)

 

243

8/21/2012

12936

LFC-3S and LFC-4S (10-wheel loads 65K lbs.)

   

243

8/21/2012

132

LFC-2SE (6-wheel loads 65K lbs.)

LFC-2SW (10-wheel loads 65K lbs.)

 

243

8/22/2012 to 10/18/2012

19890

LFC-3S and LFC-4S (10-wheel loads 70K lbs.)

   

243

8/22/2012 to 10/26/2012

8646

LFC-2SE (6-wheel loads 70K lbs.)

LFC-2SW (10-wheel loads 70K lbs.)

 

243

Test Plan

 

The Test Plan comprises three parts:

 

Gear Configuration

Wheel Loads/Tire Pressure

Wander Pattern