We have a polygon dataset with roads and we need to find the roads than are less than 13 meters turning radius. We kan also create centerline dataset with the polygon. We imagine that someone out there has done this before. We need this datasett to find which roads the fire trucks will have problems to drive.
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if the polygon contain arcs you could coerce the geometry to becone a line feature.
Then you can split inidvidual part with the pathsplitter. use ArcPropertyExtractor to retrieve properties about the arcs. this has two radius properties _primary_radius and _secondary_radius. Then you can test the values.
I understand that you want to know depending on road width, road angle, freight length and width you need to calculate if the truck can pass the corner.
What would be your working process when doing it by hand?
Break the situation down into the steps you need to make. And try solving every step.