Boston Green Line (MBTA)
Green Line · United States of America
betascreening (open data)geometry as of 2026-06-23 · scores as of 2026-07-31
Network
Rolling stock
Type 7 LRV, Kinki Sharyo (84 active of 120 built), Type 8 LRV, AnsaldoBreda (76 active of 95 built, source conflict - see note), Type 9 LRV, CAF USA (24 active of 24 built); Type 10 LRV, CAF USA (102 on order, pilot cars due late 2026, revenue service from 2027 through 2031, will progressively replace Type 7, Type 8 and Type 9)
Data notes
Source: Wikipedia: MBTA Kinki Sharyo Type 7 (accessed 2026-07-04) (+2 more sources)
Susceptibility bands (modelled)
Suggest a correction
Spotted a wrong name, a map that looks wrong, an off fleet figure, a missing line, or a hotspot that does not squeal on the ground? Local knowledge beats the model. Corrections feed the next build.
Email a correctionModelled, not measured. Geometric squeal susceptibility before mitigation, computed from open OpenStreetMap centreline geometry; never a noise prediction and not validated against measured sound levels. Fleet figures from public sources.
Bring us your noisiest curve, or problem section.
Show us the curve that will not stop squealing and we will model it with you, then show you what conditioning the interface can do, or if other interventions are required.