Figure 2. Traffic Modeling Process
INPUT
CALIBRATED MODEL DEVELOPMENT (AIMSUN)
ALT SET MODEL(S)
OUTPUTS
IMPROVEMENT PROJECTS
MACRO » Import Link/Node Shapefiles
CUBE » Link Shapefile » Node Shapefile » OD Matrices
» V/C maps* » Volume & V/C Comparisons* » Path Travel Times* » Network Performance
» Run MacroWith OD Data » Create Model Network
ALT SETS » E+C (Base Model)
» Speed » Delay
HILLSBOROUGH COUNTY » Signal Timing » Count Data » List Of Funded/
» Alt 1 » Alt 2 » Alt 3
MICRO » Geometry Updates » Import Signal Timing » Volume Development
* Included in this report
Committed Projects For E+C Model
MESO » Calibration
- Make Section/Turn Changes » Compare Model Outputs To County Synchro Volumes
5. Perform mesoscopic modeling on the E+C Model (results in Section 3.3). Another feature of Aimsun mesoscopic modeling that was used in this analysis is dynamic assignment, which allows the traffic to reroute at specified intervals to better mimic how drivers act in the real world.
6. Use the E+C Model as the base to code in projects for each of the three alternatives sets modeling. Compare the results of the three alternative sets to the E+C Model results (see Section 4 for results).
5
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