Snow and Ice Condition Analysis: Reconstructing a Changing Surface
Winter incidents evolve hour by hour. Engineering analysis combines weather records, site geometry, maintenance evidence, and careful scene documentation.
Snow and ice cases present a moving target. Temperature, precipitation, plowing, salting, foot traffic, shade, and drainage can change the walking surface between an incident and an inspection. A reliable analysis therefore treats time and site conditions as part of the evidence.
Build a weather-and-maintenance timeline
Hourly weather observations, storm totals, freeze-thaw cycles, photographs, work orders, contractor logs, and witness accounts can be organized around the relevant hours. The goal is to identify which conditions are documented, which are inferred, and which remain uncertain.
Account for micro-site effects
Roof drainage, downspouts, slopes, shaded areas, pavement transitions, and traffic patterns can produce localized ice even when nearby areas are clear. Mapping these features helps counsel understand why a particular route may differ from the broader weather picture.