We just added transportation noise screening to Groundcheck. Reports for properties in the contiguous United States now check a public National Transportation Noise Map service for the modeled road and aviation noise level at the saved property point.
Noise can affect how a property feels and how you plan a project. A site near a highway or airport can face outdoor-use concerns, building-envelope decisions, tenant or buyer expectations, and requests for a more detailed acoustical review.
What Groundcheck checks
Groundcheck sends the property coordinates to the live CDC OneMap ArcGIS service and queries the raster for that state. When the service publishes a value at the point, the report shows the modeled annual-average 24-hour A-weighted sound level in decibels.
The current live service contains 2014 road and aviation noise data. It covers the contiguous United States and Washington, D.C. It does not cover Alaska or Hawaii, and it does not include rail noise.
Why transportation noise matters
Transportation noise does not decide whether land is buildable, but it can change the questions you ask before buying or designing. A higher modeled value can justify visiting the site at busy times and reviewing how roads, airports, topography, and the proposed building location relate to the parcel.
Finding that signal beside parcel, floodplain, wetlands, soils, slope, road, and environmental data makes it easier to recognize a concern that a listing or daytime site visit can miss.
- Visit the property during morning and evening traffic periods.
- Check whether the likely building area sits closer to the noise source than the saved property point.
- Review outdoor spaces, bedrooms, offices, and other noise-sensitive uses.
- Ask an acoustical consultant about measurements or building-envelope design when noise affects the project.
How the result appears in your report
Groundcheck reports the modeled decibel value and labels it as 2014 road and aviation data. It keeps the finding neutral because one national threshold cannot determine whether a level works for every use, building design, or local rule.
If the live service has no value or becomes unavailable, Groundcheck marks the check unavailable without stopping the rest of the report.
What this layer cannot prove
The source models an annual average. It does not measure current sound at the parcel, account for every barrier or local source, predict indoor noise, or show short loud events. Conditions can also change as roads, traffic, flight activity, buildings, and vegetation change.
Use this layer to decide whether noise deserves more attention. Confirm important decisions with a site visit, current measurements, local information, and a qualified acoustical professional.
Use the new layer
Check the property you are considering
Groundcheck combines this source with parcel details and other available national, state, and local layers.
Start a property check See every Groundcheck data layerGroundcheck provides early public data screening, not a legal, engineering, surveying, environmental, planning, permitting, or buildability determination. Verify important findings with the responsible agencies and qualified professionals.