Speed Limit Study

Speed Limit Study

In 2022, Island County began reviewing the existing posted speed limits county-wide to provide an engineer's recommended speed limit, based on data analysis and land use within the areas of review.

Historically, data points (including the 85% and 50% percentile), Average Daily Traffic (ADT), collision history, and engineering judgment have provided the recommendation for a posted speed limit. Our current project also includes development density, pedestrian, and bicycle use.

Speed Limit sign