Create an Alert

For creating a new alert, follow these steps:

1. Select Alert Template > Create
2. Provide a Name for the Alert Template.
3. Select the desired type of Alert in the Type field. Alert has two modes of operation: Static and Historical. Historical Alert compares the captured values to the historical data of up to 12 weeks if available, while Static Alert compares data to a constant value that the user sets.
4. Alerts can be created to assign to links or routes, so in the Target dropdown menu, choose one of these options.
5. Target Field specifies the type of data that will be used for the Alert (travel time or speed for links and routes, status for sensors).
6. Operator and Value dropdown menus provide different options depending on the selected Alert type.
   • If Historical type is selected, the Operator field shows two options: Rises Above and Drops Below, and for the Value field, a percentage value can be entered as the threshold.
   • If Static type is selected, the Operator field shows five options: Equal, Greater or Equal, Greater, Less or Equal, and Less. In the Value field, you should choose a constant value as the threshold.
7. Advanced Settings: In the advanced settings, users specify when the alert should be triggered.
   • Aggregation Function: Aggregation Function is applied to the data points in the Aggregation Period (next field). Choose between three different functions: Maximum, Minimum, and Average.
   • Aggregation Period: Select the amount of data points that should be grouped using the Aggregation Function. After aggregation, all these data points are represented by one value.
   • Evaluation Period: Select the amount of data points that should be in one Evaluation for determining the state of the Alert. Evaluation Period is always a multiple of the Aggregation Period.
   • Number of Violations: This number shows the minimum number of violations from the defined threshold to trigger the Alert.
8. Schedule: If you like to run the Alert for a specific period such as day of the week and hours of the day, you can choose their timeslots in this section.
9. Click on the Save button.

For more clarification about Alert settings, see create an alert, Static type Alert, and Historical type Alert.