CEE 8813 · GIS Lectures 3–4 · Narrated animation
How road agencies say where things are: by route and milepoint instead of latitude and longitude. Follows one real crash on SR 154 in Fulton County from its route ID to a straight-line diagram, the curve-crash comparison with the 150 ft buffer, and dynamic segmentation.
Click a sentence to jump there. Keyboard: space plays and pauses, the arrow keys move one sentence, F toggles full screen.