Specification Type

The following controls, located on the Input -> Simulation Parameters Page, are used to specify the Specification Type associated with the Mechanistic-Empirical simulation.

Specification Type is used to select the appropriate reliability that matches the uncertainties in pavement performance prediction for a given design. "PRS" is short for Performance Related Specifications.

Specification Type:

•Non-PRS - this level is used when the HMA materials follow the volumetric specification and there is no specific minimum performance requirements to meet

•PRS - this level is used when the HMA materials follow the performance related specifications. Each HMA material used in the design has a set of performance limits associated with it. The Job Mix Formula (JMF) submitted by the contractor will need to be verified to meet these performance limits as part of the approval process.

•Calibration - this level is used for calibrating performance models. Permission to use this level is granted, on a case-by-case basis, separately from the permission to run CalME.

These controls are readonly for all CalME users other than those assigned to the Research Group. CalME users in the Research Group are permitted to change the Specification Type parameters.

The question mark in the blue circle in the upper-right of the control group allows you to get help on the controls (this topic).