The Roadway Optimizer for AGi32 is essentially a complete roadway design program in its own right. The Roadway Optimizer has the ability to predict pole spacing for a variety of road configurations while optimizing on multiple calculation criteria simultaneously. Each calculation iterates until all requested criteria are either met or, if not possible, program tolerances are reached. Detailed output of all calculated metrics is displayed immediately in the dialog and can be printed without using AGi32’s main program area.
Steps to use AGi32’s Roadway Optimizer
Each step references Figure 1 below
- Select a Roadway Standard (Ex: IES RP-8-2000)
- Select roadway pavement characteristics, i.e. an R-table. AGi32 supports many international R-tables and you can add additional tables easily if available
- Select Roadway Layout specifics:
- Layouts include: 1-rows, 2-rows, 4-rows, opposite, staggered, near side, far side, with or without median
- Number of lanes: 2-direction calculations such as CIE can specify number of lanes in both directions
- Roadway width in direction of travel
- Median width
- Drivers side of roadway (left or right)
- Calculation area (top or bottom)
- Specify Luminaire Layout: different luminaires, setbacks, mounting heights, aiming angles can be used for each row.
- Select Optimization Criteria (as many as needed), use the Alt+up/dn arrow keys to establish the optimization order from most important (top) to least (below):
- Max Lv Ratio
- Avg/Min Illuminance ratio
- Avg/Min Luminance ratio
- Minimum Illuminance
- Minimum Luminance
- Average Illuminance
- Average Luminance
- Click the Calculate button
- All calculations required by the selected standard are performed and statistics shown. If the selected Optimization Criteria have been met or exceeded, the headings are shown in Bold in the statistical window. If they were not achieved, the results are shown in red
- Each -by-point grid can be reviewed in the graphics window by selecting it in the statistical list (arrow is shown for currently viewed metric)
- Pole spacing is computed to meet the selected Optimization Criteria
Refine the pole spacing manually if desired (Figure 2):
- Select the "Calculate Based on Set Spacing" setting
- Manually enter pole spacing for each row
- Click the Calculate button
Create additional layouts and compare (Figures 2 & 3):
13. Click on the radio button for Layout 2 at the top of the form. All specifics from Layout 1 will be copied to Layout 2. Make any adjustments to Layout 2 and re-calculate
14. Provided the Roadway configuration and Standard remain the same, the layouts can be compared side by side by selecting the Comparison tab. This is particularly useful when comparing results for different luminaires using the same criteria, or slightly different pole spacings.
Output Options for Roadway Optimizer
Any calculation can be printed with results for each computed metric (i.e. Luminance, Illuminance, etc.) shown on an individual page. The cover page contains details on the photometric files used and luminaire/pole layout. A company logo can be used across the cover page. This output is also easily printed to PDF using any PDF capable printer driver.
Exporting the results from Roadway Optimizer into AGi32’s Model Mode can be especially useful when the specific calculation should consider additional pole placements aside from the standard roadway. In this case it is easy to drop the output from Roadway Optimizer directly on top of an imported CAD background. Pole placements can be adjusted and amended as required. This is a quick substitute for using the more involved Calculation Points – Roadway command.