Transportation Systems Simulation - A Tutorial for Multi-Modal Simulation Using VISSIM/Simulation
Before running a simulation, assure that each previous section has been implemented. The following section is the most basic method of extracting simulation data from VISSIM.
- Identify where the simulation data will be saved by selecting Evaluation > Configuration from the top toolbar (see Figure below)
- Click the “…” button and select the location/folder as your desired output directory
- Click OK
- Click OK
Set the “Simulation Parameters” by selecting Simulation > Parameters from the top toolbar (see Figure below)
Period = | 10800 for 3 hours or 7200 for 2 hours |
Simulation resolution = | 10 |
Random Seed = | Random # |
Number of runs = | 1 |
Simulation speed = | maximum |
Number of cores = | use all cores |
Click OK
TIP: Higher “Simulation resolution” values will result in smother simulations while requiring more resources. Consider changing the seed to avoid similar results.
- Select the “Data Collection Measurement” tab below the Network Editor
- Click the “Autosave after simulation” button
TIP: To manually save simulation data, Click the “Save to file” button located left of the “Autosave” button
- On the top toolbar, Select Simulation > Continuous …sit back and watch the simulation run (see Figure below)
- If VISSIM prompts the user to “Save changes?” Click Yes
- While the simulation is running, make a note of the following vehicular characteristics:
- Vehicles are entering and exiting through the appropriate locations
- HGV are generated by the simulation
- Look for unusual behavior (stuck vehicles, merging issues, disappearing vehicles, unused lanes, connector issues …)
- Watch the entire simulation carefully, zoom in and out to locate trouble areas
- Let the entire simulation finish to automatically save the results
- Values will being to generate in the “Data Collection Measurement” window as the simulation runs