Groundtruth

What the public record shows

Living near the Orange Line in Jamaica Plain

The Orange Line and Amtrak/commuter tracks share the Southwest Corridor through JP, in a sunken right-of-way beside the corridor park.

Everything below is a recorded finding from Groundtruth's data layers, sampled at 3 points along this corridor on Jul 16, 2026, each with its public source. These numbers move block by block: run your exact address for the full six-pillar report.

Rail noise, modeled

56–88 dB

An estimate for spotting problems, not a measurement. Registered at 3 of 3 sampled points. 24-hour average, national noise model (BTS).

Road noise, modeled

47–48 dB

An estimate for spotting problems, not a measurement. Registered at 2 of 3 sampled points. 24-hour average, national noise model (BTS).

Noise sources on record

major

Modeled rail noise: ~88 dB (24-hr average)

The BTS transportation noise model puts 24-hr average rail noise at this location around 88 dB LAeq. This is BTS's simplified national model (no terrain or building shielding) — a trend-grade modeled estimate, not a measurement.

Source: BTS National Transportation Noise Map (2022) · retrieved Jul 16, 2026

major

Modeled rail noise: ~87 dB (24-hr average)

The BTS transportation noise model puts 24-hr average rail noise at this location around 87 dB LAeq. Within ~160 ft it reaches 92 dB (75th percentile 81 dB). This is BTS's simplified national model (no terrain or building shielding) — a trend-grade modeled estimate, not a measurement.

Source: BTS National Transportation Noise Map (2022) · retrieved Jul 16, 2026

Construction & development on record

major1,155 ft SE

Planned development: 3430 & 3440 Washington Street

Large Project that is board-approved — 230 residential units, 260,780 sq ft, $75M estimated cost. The proposal is in the PLAN: JP/Rox study area and calls for two separate (divided by Rockvale circle) mixed-use residential/commercial multi-family buildings to replace the existing auto body repair shop and gas station. Last filed 4/15/2025.

Source: Boston Planning (BPDA) — Article 80 Development Projects · retrieved Jul 16, 2026

Getting around

info

Walkability: 13.8 / 20 (above-average walkable)

The EPA National Walkability Index scores this census block group 13.8 out of 20 — in the "above-average walkable" band nationally. The index combines intersection density, proximity to transit stops, and the mix of jobs, homes, and destinations.

Source: EPA National Walkability Index · retrieved Jul 16, 2026

info

2 rail stations, 4 bus routes within a 10-minute walk

Green Street (1-min walk): Orange Line (subway): 458 weekday departures (~23/hour), 5:16 AM–1:00 AM. Stony Brook (10-min walk): Orange Line (subway): 458 weekday departures (~23/hour), 5:18 AM–12:58 AM. 4 bus routes stop within the walk radius.

Source: MBTA GTFS static feed (Summer 2026, 2026-07-15T15:16:59+00:00, version D) · retrieved Jul 16, 2026

Neighborhood signals

This is the corridor. Your block is different.

Distance to the source decides most of these numbers. A Groundtruth report runs all sixteen layers against one exact address: noise, hazards, permits, transit, and neighborhood signals, scored and cited. Six scores and the top finding are free.

Run your address

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