Notice of RetractionSix Sigma in paving process

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.

In this paper is presented an application of the Six Sigma quality methodology to enhance paving process. Using the DMAIC cycle (Define, Measure, Analyze, Improve, Control) it was made a study of the paving process to locate the defects that could origin a pothole on the asphalt. First of all, a measurement of the most important parameters in paving process such as thickness, compaction and permeability of each layer of the pavement structure was done. Next, it was made an statistical analysis in order to find the processing capacity (Cpm, Cp, Cpk, Pp and Ppk) and other measures of central tendency like the standard deviation and sigma level of the process. From this analysis, it was inferred some interesting conclusions like which are the most important causes of the apparition of potholes and the importance of a continuous monitoring by quality laboratories in the paving process.