What this tracks
This dataset records the locations and types of guardrail end terminals installed on Tennessee highways, interstates, and state park roads.
Why it matters to you
If you’re planning a road trip or commute through Tennessee, this data tells you where guardrail safety features begin and end — critical for understanding roadside safety along your route. Small trucking businesses can verify if specific highway segments have modern guardrail terminals (like ET-Plus models) when assessing risk for insurance or route planning. Residents near high-traffic exits can check if their local ramps have up-to-date safety hardware.
How to read this data
FEAT_DESC — The guardrail terminal model, e.g., “Type 38 - Extruded Terminal (ET-Plus)” shows crash-tested designs.
LOC_DESC — Placement direction like “Left” indicates which side of the road the terminal is on.
LOG_MILE — The mile marker position (e.g., 0.115 means just past mile 0).
ROUTE — Highway identifier like “I0240” for I-240 in Shelby County.
Try it yourself
Check guardrail terminals near your regular exit by searching TDOT’s map for your route number (like I-240) and cross-referencing the exit number.