What this tracks
This dataset records the locations and details of specialty pavement markings (like truncated domes and ramps) on Tennessee’s interstates, state routes, and TDOT-maintained roads.
Why it matters to you
If you rely on accessible routes—whether as a wheelchair user, a business owner ensuring ADA compliance, or a driver navigating unfamiliar exits—this data shows where tactile warnings and ramps exist. For example, a Nashville delivery driver could check ramp widths (RAMP_WIDTH_FT) before planning a route for a large truck, or a Chattanooga resident could verify if a crosswalk near their home has truncated domes (TRUNCATED_DOME_PRESENCE) for safer walking.
How to read this data
FEATURE_DESCRIPTION — The type of pavement feature, like “Driveway” or “Curb Ramp” (sample: “Driveway”).
LOCATION_DESCRIPTION — Where the feature is placed relative to the road, such as “Right” or “Left” (sample: “Right”).
TRUNCATED_DOME_PRESENCE — Whether tactile warning domes are present (sample: “2” likely indicates yes/no; check the metadata for codes).
RAMP_SLOPE_PCT — The incline of a ramp, critical for accessibility (sample: “7.7” means a 7.7% slope).
Try it yourself
Look up your frequent commute route in the dataset using ROUTE_NUMBER (e.g., “SR010”) to see if key intersections have accessible ramps or warnings.