I have a proposed lot plan for a new subdivision. I'm trying to find which lots slope away or slope towards the streets - essentially uphill and downhill. I also need to classify the lots by slope categories (0-5, 5-10, 5>10%).
I took my surface and calculated the slope and the aspect. I reclassified the aspect into general directions and the slope catagories I need. I spatially joined my lot polygons to these rasters.
I have polygons defining my streets and I've buffered them so that they overlap my lot polygons. What I am having trouble with is determining the slope direction off of the street polygon.
I'm assuming I need to assign elevations to my street polygons and then do a comparison between the elevations and slope of the lot polygons but I'm not sure how to do that.