Volume 1: TRAQS User Guide (2018) / Chapter Skim
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Pages 40-65
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TRAQS User Guide Page 40 5. MAP & LINKS Under the TRAQS main window, press the Map & Links button to access to the Map & Links module.
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TRAQS User Guide Page 41 Snapping Option After pressing the Road Link tool, press the Ctrl key. Move your mouse close to the existing Road Link segment that you want your new link to attach to.
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TRAQS User Guide Page 42 How to Specify Roadway Links 1. Press the Road Link tool ( )
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TRAQS User Guide Page 43 4. When you finish entering all the required information, press the OK button.
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TRAQS User Guide Page 44 4. Click the OK button.
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TRAQS User Guide Page 45 How to Use the Edit Tool 1. Press the Edit tool ( )
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TRAQS User Guide Page 46 How to Use the Delete Tool 1. Press the Delete tool ( )
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TRAQS User Guide Page 47 Places a Discrete Receptor location. Draws a polygon to define an exclusion zone where receptors should not be defined.
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TRAQS User Guide Page 48 Functionality of Buttons – Link Parameters Section Press this button to add a new road link. The Link Parameters dialog is displayed.
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TRAQS User Guide Page 49 5.3. OFF-NETWORK LINKS The Off-Network Links tab of the Map & Links Module contains a grid listing any off-network links graphically specified under the Map View screen.
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TRAQS User Guide Page 50 Press this button to import Link Nodes from a CSV file. Press this button to export the contents of the Link Nodes grid to a CSV file.
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TRAQS User Guide Page 51 Link Parameters Tab Link Type: This field is only used for visualization purposes. On the map area, each link will be shown in a different color depending on one of the selections below: o Cruise: This link will be shown on the map area in green color and should represent the section of the road where vehicles are in cruise mode.
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TRAQS User Guide Page 52 AERMOD Line Source Parameters TRAQS converts each roadway link, specified under the Map & Links module, into LINE sources for use with the AERMOD air dispersion model. The AERMOD model requires the specification of two important parameters for any LINE source: 1.
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TRAQS User Guide Page 53 Traffic Data You must specify, for each link, the following traffic data: Volume (vehicles/hr) : This is the total traffic volume (number of vehicles)
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TRAQS User Guide Page 54 Press the column header to select the entire column. Press Ctrl+D to copy the contents of the first selected cell down to the cells below or press Ctrl+U to copy the contents of the last selected cell to all cells up.
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TRAQS User Guide Page 55 For projects using MOVES, only 1 Off-Network Link can be specified. This is a limitation of the MOVES model.
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TRAQS User Guide Page 56 In this section, you will find two methods to specify the above LINE source parameters: Method 1 - Calculate based on Mixed Fleet data: This method uses an emissions-weighted average or volume-weighted average and follows the approach described under Appendix J of the US EPA PM Hot-Spot Analyses Guidance (EPA-420-B-15-084)
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TRAQS User Guide Page 57 Click on the column header to select the entire column. Press Ctrl+D to copy the contents of the first selected cell down to the cells below or press Ctrl+U to copy the contents of the last selected cell to all cells up.
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TRAQS User Guide Page 58 Functionality of Buttons Press this button to export the contents of the grid to a CSV file. Press this button to import data into the grid from a CSV file.
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TRAQS User Guide Page 59 5.6. AERMOD RECEPTORS The AERMOD Receptors window allows you to define receptor locations for your AERMOD air dispersion modeling analysis.
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TRAQS User Guide Page 60 5.6.1. DISCRETE RECEPTORS Under the Discrete Receptors tab of the AERMOD Receptors window, you will be able to specify and/or view discrete receptor locations to be included in the AERMOD modeling runs.
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TRAQS User Guide Page 61 Deletes any selected discrete receptors from the Discrete Receptor grid. You can use the Shift key or Ctrl+ Alt keys to select multiple grid rows.
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TRAQS User Guide Page 62 5.6.3. GRID RECEPTORS Under the Grid Receptors tab of the AERMOD Receptors window, you will be able to define multiple receptor locations by specifying a Uniform Cartesian Grid.
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TRAQS User Guide Page 63 Functionality of Buttons Press this button to automatically generate a grid covering your entire modeling domain. A default spacing of 50 meters is used for the X and Y directions, however, you can specify your own values Press this button to clear all fields and remove the grid from your project.
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TRAQS User Guide Page 64 How to Specify Link Receptors 1. Press the button.
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TRAQS User Guide Page 65 Functionality of Buttons Selects all boxes under the Selected column. Unselects all boxes under the Selected column.
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