for active nodes
You can optimize the cycle times and green times of
The procedure optimizes the set signal program of signal controllers at signalized nodes, whose method for calculating the impedance is Node impedance calculation (ICA). The set signal program numbers must have a valid value, otherwise the signal controller is considered to be switched off. Optimization is performed according to the optimization method set at the signal controller. The optimization automatically includes all nodes to which the signal controller is assigned for the calculation.
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Notes: Prior to optimization, you can check the network's viability for ICA (Checking the network and fixing errors). |
1. Make sure the required input attributes for this procedure are correct (Fundamentals: Data model for signal cycle and split optimization).
2. From the Calculate menu, choose General procedure settings.
The General procedure settings window opens.
3. In the navigator, select PrT settings > Signal cycle and split optimization.
4. Make the desired changes.
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Element |
Description |
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Use cycle times of coordination groups |
If this option is selected, only cycle times of their particular cycle time family are permissive for signal controls belonging to a coordination group. If the option is not selected, any cycle time (integer [in seconds]) from the interval between the node attributes ICA minimum cycle time for optimization and ICA maximum cycle time for optimization is permitted. |
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Precision of computation |
No decimal places The times are rounded to seconds as whole numbers One decimal place The times are rounded to tenths of a second |
5. Confirm with OK.
6. On the toolbar, click the 
Open 'Procedure sequence' window button.
The Procedure sequence window opens.
7. Select the desired position and add the procedure Signal cycle and split optimization from the Assignments category to the given sequence of procedures.
8. Confirm with OK.
The signal cycle and split optimization is executed.
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Notes: The intergreen matrix for signal groups is always taken into account. If this is empty, the value of the signal control attribute Default intergreen applies. Alternatively, you can also execute the signal cycle and split optimization for a single node or several selected nodes (Optimizing signal cycles and split of a single signal controller and Updating impedances at nodes). |
