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Running an analysis

Analysis is the core function of Siter. When you run an analysis, Siter calculates quantity-distance (QD) arcs for each potential explosion site (PES) based on the explosive quantities, facility types, and attributes you have defined. The results show whether facilities meet the required separation distances according to the selected criteria.

Prerequisites​

  • Your project must have at least one feature with a facility type assigned
  • Features must have explosive quantities entered (see Feature explosives data)
  • You must have the ProjectUser role or higher to run analysis

How to run an analysis​

There are two ways to run an analysis:

From the toolbar​

  1. Click the Calculate button (green calculator icon) in the toolbar — this appears when features have changed since the last analysis
  2. Siter calculates QD arcs for all features in the project

From the project settings​

  1. Click the project name to open the project dashboard
  2. Click the settings gear icon
  3. Select Run Analysis

How to view analysis results​

After running an analysis, results are available from the toolbar and on individual features.

From the toolbar​

  1. Click the Check button in the toolbar
  2. Select Analysis Results to view project-wide results

On individual features​

  1. Select a feature to open its dashboard
  2. Click the Calculations tab to see QD calculation results for that feature
  3. Click the Spatial Analysis tab to see which nearby features fall within QD arcs
  4. Click the Errors tab to see any data issues that prevented calculation

Understanding analysis results​

Analysis results include:

  • QD Arcs — circles drawn on the map showing the required separation distances from each PES
  • Violations — features that fall within a QD arc where they should not
  • Calculation details — the specific distances, explosive quantities, and criteria tables used for each calculation
  • Spatial results — which features are affected by which PES arcs

How to clear analysis results​

  1. Click the Check button in the toolbar and select Clear Analysis, or
  2. Open the project settings gear and select Clear Analysis
note

Analysis results are cleared automatically when you modify features. The Calculate button appears in the toolbar to indicate that a new analysis is needed.

Troubleshooting​

Analysis shows no results​

Cause: Features do not have explosive quantities entered.

Solution: Open each PES feature's Explosives tab and enter the net explosive weight for the appropriate hazard divisions.

Features show as errors​

Cause: Required attributes or facility type information is missing.

Solution: Check the feature's Errors tab for specific messages, then update the missing data on the Details or Attributes tab.