Notice of RetractionThe level analysis of performance appraisal based on externality of freeway project

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.

As the rapid development of freeway, freeway project performance appraisal is growly attractive to people, which is one part of freeway management This paper will try to use externality in freeway project performance appraisal, analysing the relationship between externality of freeway and performance, constructing three levels of performance appraisal based on externality of freeway project: freeway entity system performance appraisal level, transportation system performance appraisal level, society system performance appraisal level. Via this, it is to be a base of conprehensive performance appraisal system, and to solve nie problem of blind spot and content redundant in freeway project performance appraisal.