What this tracks
This dataset records the locations and types of raised pavement markers (like reflective road studs) installed on interstates, state routes, and key local roads in Tennessee.
Why it matters to you
These markers help drivers stay in their lanes during poor visibility, like heavy rain or fog. If you frequently drive I-240 in Shelby County, this data tells you where snowplowable markers are placed—useful for anticipating winter road conditions. Truckers and delivery drivers can also check marker density on specific ramps (like Exit 16B) to identify well-marked routes for night trips.
How to read this data
FEAT_DESC — The marker type, like “Snowplowable White” (reflects headlights and withstands plows).
LOC_DESC — Placement relative to lanes, such as “Right” (markers along the right edge).
ROUTE — Highway identifier, like “I0240” for I-240.
BEG_LOG / END_LOG — Mile markers where the markers start and end (e.g., 0.293 to 0.295 means a short 0.002-mile stretch).
Try it yourself
Look up your regular commute route (e.g., I-240 in Shelby County) to see where reflective markers are clustered—especially before curves or exits—to identify better-lit sections for nighttime driving.