decibel-shield

Modeled transportation noise at a US address

get_address_noise

Read-onlyIdempotent

Answers "how loud is my neighborhood", "noise map by address", "how noisy is this address", "noise level in ZIP 78701". Modeled transportation noise (road + rail + aircraft, 24-hour average LAeq dBA) at a US street address, a 5-digit ZIP (sampled at the ZIP Code area center, approximate), a town or city name (sampled at the town center, approximate) or lat/lng, sampled block-by-block from the federal BTS 2020 National Transportation Noise Map. Returns a modeled dBA band, NOT a measurement; "below 45 dBA" means no modeled freeway/rail/flight path nearby (model floor, not silence). Continental US only.

Input Schema

TableJSON Schema

Name	Required	Description
`lat`	No	Latitude (use with lng instead of an address)
`lng`	No	Longitude (use with lat)
`zip`	No	5-digit US ZIP Code; sampled at the center of the ZIP Code area (Census 2023 ZCTA), so approximate
`place`	No	US town or city name, ideally with the state, e.g. "Boulder, CO"; sampled at the center of the town (Census 2023 places), so approximate
`address`	No	US street address, e.g. "1600 Pennsylvania Ave NW, Washington DC"

Output Schema

TableJSON Schema

Name	Required	Description
`lat`	No
`lng`	No
`band`	Yes	Modeled dBA band, e.g. "60–70 dBA", or "below 45 dBA"
`note`	No
`query`	No
`db_low`	No
`db_high`	No
`modeled`	Yes
`approximate`	No	"zip" or "place" when sampled at an area center rather than a street
`attribution`	No
`resolved_by`	No	street, street_unit, zip, place, zip_from_street, place_from_street or point
`street_matched`	No	false when a street address did not match and its ZIP or town was used instead
`matched_address`	No	Geocoder’s normalized address (when an address was given)
`nearby_max_band`	No	Loudest modeled band within ~90 m, if higher than the point

Schema Changelog

Changes observed during successful MCP inspections.

Changed4 schema fields changedOct 11, 2026

addedInput schema / properties / place

Added value: +{
+  "description": "US town or city name, ideally with the state, e.g. \"Boulder, CO\"; sampled at the center of the town (Census 2023 places), so approximate",
+  "type": "string"
+}

addedOutput schema / properties / approximate

Added value: +{
+  "description": "\"zip\" or \"place\" when sampled at an area center rather than a street",
+  "type": "string"
+}

addedOutput schema / properties / resolved_by

Added value: +{
+  "description": "street, street_unit, zip, place, zip_from_street, place_from_street or point",
+  "type": "string"
+}

addedOutput schema / properties / street_matched

Added value: +{
+  "description": "false when a street address did not match and its ZIP or town was used instead",
+  "type": "boolean"
+}

Changed1 schema field changedSep 19, 2026

addedInput schema / properties / zip

Added value: +{
+  "description": "5-digit US ZIP Code; sampled at the center of the ZIP Code area (Census 2023 ZCTA), so approximate",
+  "type": "string"
+}

AddedJul 11, 2026

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