• Traffic volumes on an annual and peak hour basis, by season

• Level of service (extent of congestion) on the facility during peak periods by season

• Annual revenues from tolls, concession, and other funding sources relative to projections

• Annual lane-miles out of service for incident-based repair and preventive maintenance

• Percentage of project financing provided by private sector partners

• Ability of project to fully cover debt service costs, contract costs, and coverage levels with a reasonable rate of return on invested capital by the private sector partners

• Net increase in capital program due to PPP projects

• Project cost relative to engineer's estimate and contract budget

• Project duration relative to contract term

• Cost per transaction for PPP project operations

• Percent of tolls collected by ETC for PPP project facilities

• Ratings of bonds sold for PPP project

• Proportion of PPP project costs required for contract administration