AASHTO MP 14-05

Weigh-in-Motion (WIM) is the process of measuring the dynamic forces of moving vehicle tires on pavements and estimating the corresponding tire loads of the static vehicle. The dynamic forces of moving vehicles include the effects of road surface roughness and are modified by vehicle characteristics such as spring and un-spring mass, tire inflation pressures, out-of-round or dynamically unbalanced wheels and tires, suspension damping and the vehicles' aerodynamic characteristics. The smoothness of the pavement surface at the approach to a WIM Scale directly affects the scale's ability to accurately estimate static loads from measured dynamic forces. Lack of smoothness creates difficulties in calibrating WIM equipment and may cause poor results from subsequent vehicle weight data collection efforts.

Product Details

Number of Pages:

7

File Size:

1 file , 800 KB

Product Code(s):

MA-MP014-05-UL, MA-MP014-05-UL