Load Rating Tool for LRFR Coming in Release 7.2

August 20, 2021

The Load Rating Tool for LFR has been a great success with quite a few states using this feature extensively in their permit routing systems. Building upon this success, this feature will be enhanced to support LRFR in version 7.2 slated for January 2022 release. Service unit contributions from Idaho TD, Illinois DOT, Indiana DOT, Kansas DOT, Louisiana DOTD, Ohio DOT, South Carolina DOT, Virginia DOT, and the support of the BrDR Task Force made this enhancement possible.

Multi-girder superstructure (girder system/line), multi-cell box (reinforced concrete and post-tensioned), and slab system superstructure will be supported in this enhancement. The superstructure types currently supported by the Load Rating Tool and the versions they are first available are:

The Precomputed Data window will be upgraded to support running precomputed data analysis based on either LFR, LRFR, or Member Alternative analysis method type. The controls options override will be upgraded based on the selection of the analysis method type. Load Rating Tool analysis can be performed either for LFR, LRFR, or Member Alternative analysis method type. LRFR analysis through the Load Rating Tool will support running permit load rating analysis with adjacent vehicle. Permit load rating will also support running with a permit lane load along with the provision of gapping lane load at the permit vehicle location. Figure 1 illustrates the supported permit load rating features for the Load Rating Tool.

Figure 1: LRFR permit load rating configuration.