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Introduction

The alarm queries provide critical information on alarms that have been generated in ClearWay™, either as a result of an incident on the highway or due a fault within the system.

Alarm Queries

  1. Alarm Locations: this query will determine the location of any alarms within the time period and record limitations. The results are depicted as squares in the detection area. 

    1. Colour: this determines the colour of the square icons that represent alarm locations on the PPI Display.

  2. False Alarms: this query will determine the location of any false alarms within the time period and record limitations. The results are depicted as squares in the detection area. 

    1. Area Covered (m): click on the monochrome symbol before the numeric box in order to toggle between None   āƒ   , Greater Than or Equal To ≥ , and Less Than or Equal To ≤ qualifiers. ≥ or ≤ must be selected if a value is input.

    2. Colour: this determines the colour of the square icons that represent false alarms on the PPI Display.

  3. Alarm Query: this query will determine whether any incident alarms were raised within selected parameters. The query can both determine the position of an incident alarm, and which rule(s) were broken if an incident alarm had been raised. This query, like all, is still subject to time period and record limitation. The results are displayed on the PPI as a red circular icon, and as graphs of alarm activity in the results panel. The variables are decided by the following categories: 

    1. Areas:

    2. Rules: you may select multiple rules to query at once. 

    3. Users:

    4. Radars:

    5. Analysis Status:

Results Example

  1. Alarm Query results are displayed as: 

    1. An Alarm Query list of alarms:

    2.  An Alarms By Path line graph:

    3. The accumulated alarms are also labelled on the PPI Display as a red circular icon; an Alarm Icon. Individual alarms can be located by selecting their locate icon on the Alarm Query list - the PPI will jump straight to the alarm's location, and flashing, red, concentric circles will pinpoint the alarm's location.

    4. Ctrl+Click the Alarm Icon on the PPI Display to open an Alarms window. This window displays the Alarm Details.

    5. Every track that created an alarm in the section selected can appear on the PPI Display by selecting Breaking Tracks. 

    6. Thus, a Tracks Query has been performed within an Alarms Query.


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