Product Overview - Network Screening Segments

The Network Screening application is designed to help users rank and identify sites for further investigation and potential treatment along the entire roadway network in an easy-to-use interface. The Network Screening application has 5 key features: Attribute Search, Segment Flyout, Roadway Ranking, Contextual Data, and the Network Screening Report. Each feature is discussed in more detail below.

Roadway Ranking

Rank your selected roadway by crashes, fatalities, crash ratio, crash rate, crashes per mile, or ePDO, and see instant ranking results. Network Screening - Segments will only load the top 1,000 segments that meet your ranking and filter criteria. A more comprehensive list of all intersection rankings is available in the CSV download.

(A segment ranking window with the selected segments ranked by Crash Rate, with Crashes Per Mile also displayed.)

Attribute Search

Use Numetric’s powerful text-to-search feature to run custom roadway Network Screening requests. Search by recommended countermeasure, crash type, or any other crash or roadway attribute, and generate instant roadway rankings that tell you which roadways require your attention.

(A Segment Screening for a given county displaying roadway ownership, ranked by Equivalent Property Damage Only (ePDO).)

Segment Flyout

Clicking on any segment in your network displays the Segment flyout, which contains current, and historical segment rankings, crashes by milepoint, a summary of crash statistics (including number of crashes and fatal (critical) crashes, crash ratio, crash rate, crashes per mile, and location information), a summary of roadway details (including AADT, function classes, and any other roadway datapoint present in your data), and a list of recommended countermeasures for that segment.

(A Segment flyout showing the current state ranking of the segment, as well as the crashes by milepoint, grouped by severity.)

Contextual Data

With photos and Google Streetview, users can explore selected segments, and even see how each segment has changed over time, all without leaving the app.

(A Segment flyout showing the current and historical state-wide ranking, as well as a link to open the selected segment in the Safety Analysis application.)

Network Screening Report

Generate a downloadable Network Screening Report which contains the network ranking, and a breakdown of each segment, including the crash rate, crash ratio, crashes per mile, fatality rate, and serious rate, and distribution of crashes along the segment grouped by severity, as well as a stacked bar chart indicating the mile point at which the crashes occurred.

(A sample Network Screening Segment Report.)

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