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NCHRP Project 25-48 19 Task 4: Interface Implementation Implementation of the TRAQS interface commenced after completion of Task 3. The following section is an overview of the TRAQS interface design architecture that was provided in the Software Development Plan. Task 5: Interface Tests For Task 5, Lakes Environmental submitted iterative versions of the TRAQS interface to RSG for testing and review. An âalphaâ version of the software was demonstrated to the NCHRP panel at their July 8, 2016 webinar. Task 6: Interface Beta Testing and Client Acceptance Test Interface Beta Testing With the release of a beta version of the TRAQS interface, the Project Team conducted a webinar to demonstrate the software to a group of stakeholders in the field of mobile emissions analysis. These stakeholders reviewed the software in âbeta testing modeâ and provided critiques to the Project Team. Client Acceptance Test In addition to conducting beta testing of the TRAQS interface, the Project Team prepared the final project deliverables in preparation of the Task 6 Client Acceptance Test. This task included demonstrating the completion of the project to the satisfaction of the NCHRP 25-48 panel while providing documentation of the project phases and tasks. The final Software Webinar (#5) served as the Client Acceptance Test. Task 7: Final Project Deliverables/Phase II Report This document serves as the Task 7 Report. Included as an appendix is a presentation slide deck for conducting additional training in using TRAQS. Deviations from the Software Development Plan and Eliminated Features CAL3 Dispersion Models In a proposed action, the EPA proposed to replace the CALINE3 family of models with AERMOD as the preferred air dispersion model, (see https://www3.epa.gov/ttn/scram/11thmodconf/EPA-HQ-OAR-2015- 0310-0001.pdf and as described in Appendix A of EPAâs Guideline on Air Quality Models). The Project Team, in consultation with the panel, chose to not include support for the CAL3 models air dispersion, as originally planned. TRAQS Interaction with EMFAC 2014 In addition, after learning that the California ARB was not prepared to make an AIP, or command line, version of EMFAC2014 available for NCHRP 25-48, the decision was made not to fully incorporate the EMFAC modeling environment into TRAQS. The Project Team determined, jointly with California Air Resource Board personel, that the best way for TRAQS to interact with EMFAC2014 is to produce a â.ersâ file, which is the master input file needed to complete a model run. It was agreed that the best path forward