Corridor map
Priority segments are the barrier candidates: unprotected crashes only (not contained by existing barrier). The design centerline is split into curve (violet) and tangent (teal) sections; segments are highlighted by section and sized by EPDO. Radii are as-built values, shown for reference.
Layers
Priority segments
Each barrier-candidate segment with its section and, on curves, the as-built radius. Sort any column; filter by section.
Reading the SCP columns: the WisDOT SCP network screening counts crashes of all types against the expectation for a similar facility, while this audit counts only roadway departure and fixed object crashes. The screening says “this segment has more crashes than it should, of any kind.” This audit says “and here is the share of that which is roadside treatable.” A LOSS 4 flag beside a candidate is the documented safety need; the candidate is the roadside treatable share of it.
| Station | Side | Crashes | EPDO | Section | Non-dry % | As-built radius (ft) | Median cable guard | Outside barrier | HFST | Treatment | SCP LOSS (Total) | SCP LOSS (Injury) | SCP PSI (Total) |
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Curves with recurring dry-pavement crashes
Horizontal curves with a repeat crash pattern that is mostly on dry pavement, where friction is unlikely to be the cause, whether or not barrier is present. As-built radius is shown for reference; tighter radii are the stronger candidates. Threshold: at least 3 crashes and over half on dry pavement.
| Curve (station) | As-built radius (ft) | Crashes | Dry % | With barrier |
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