Compare Analyses to Measure Success

Is your deployment strategy effectively reducing risk at priority places? Use RTMDx software to measure success!

Read more or jump right to watching the short video demo below.

You already ran an RTM analysis to diagnose the most significant place features contributing to crime patterns in your jurisdiction. And you deployed an intervention strategy. Has it been a few weeks since then, or maybe a month or two? Now see if it’s working. Run another RTM analysis to check current crime patterns. Then, with just a few clicks in the RTMDx software, easily compare your previous analysis (pre-intervention) and current analysis (post-intervention) to measure the impacts.

HERE’S HOW SIMPLE IT IS: After deploying the intervention strategy for a period of time (e.g., 1 month), run another RTM analysis (with the same parameter settings) for the same Topic Issue using current incident data. For example, if your first RTM analysis tested crime data from the month of January and then you deployed your intervention during the month of February, now that it’s March 1st, test the February crime data with RTM to compare the “January RTM analysis” to the “February RTM analysis”.

From the “Pocket GIS” workspace, click the “Add RTM Analysis” button and add the pre-intervention and post-intervention analyses. Once they’re visible in the Table of Contents, click the “Compare RTM Analysis” button. The Compare Analysis window will appear showing changes in Relative Risk Value (RRV) for place features in the pre and post analyses.

If the place feature(s) you focused on during the intervention has a lower RRV after the intervention compared to before, then your risk reduction efforts may be working. Look at the “P Value” column. If the decreased RRV is statistically significant (P Value is 0.95 or higher), then that’s even better news! You want to see the place features you targeted to either show a decrease in RRV (meaning these places are less likely to influence crime patterns now) or to be kicked out of the risk terrain model altogether (because they are no longer contributing to local crime patterns).

Crime patterns and risky places will change in response to successful interventions. RTM analysis is sensitive to this and can be re-run regularly.

Note that all analyses visible in the Table of Contents will be compared in the order they are listed, top to bottom. To change the comparisons, reorder the Analysis layers in the Table of Contents.

Contact our expert analysts anytime for technical support and actionable advice to help you make the most of your RTMDx subscription.

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