Run the Model
This section provides instructions for executing the travel model. For a description of the underlying computing environment, see Computing Environment; for a general description of the underlying system design, see System Design; for a description of the configuration files likely needing to be modified before executing the model, see Setup and Configuration.
One can run though the entire model stream from the CT-RAMP java-based models through assignment from within Emme. This starts the household manager, matrix manager, JPPF driver, builds skims, runs all model components, and performs highway and transit assignments. The current SANDAG implementation runs three full iterations of the models (i.e. the model starts with assignment of base-year trip tables, and speeds from previous assignments are fed back through the entire model stream).
The SANDAG travel demand model is executed via the Master run tool, which can be run from Emme Modeller. To access the Master run tool, start from a project configured as described under Setup and Configuration.
- Open Emme Desktop using the
emme_project/emme_project.empfile. Double click on the file, see figure below.
- Highlight “Scen. 100 (-- --): Empty Scenario” and click OK.
- Open the Emme Modeller window, from the
icon in the toolbar, or from the menu under Tools -> Modeller. If the icon is greyed out, it’s likely due to unsuccessful creation of emmp_project due to invalid Emme license.