Legend ± dwg ref: 8235-0341-08 1:70,000 Scale: A3 @ 0 2,000 1,000 m © Crown copyright and database right 2016.Ordnance Survey 100021874. Welsh Government. © Hawlfraint a hawliau cronfa ddata'r Goron 2016. Rhif Trwdded yr Arolwg Ordnans 100021874. Drawn: CR Date: Checked: SS Status: AT ISSUE Revision: Figure: R13.6 Operational Daytime Noise Levels for Opening Year With Scheme and Committed Mitigation (2022OYDSCM) dwg ref: 8235-0341-08 Contains Ordnance Survey data © Crown copyright and database right 2015 Legend New Section of Motorway Environmental Statement Supplement September 2016 Noise Level L10(18h) in dB(A) <=42 <=45 <=50 <=55 <=60 <=65 <=70 <=75 <=80 <=85 <=90 42< 45< 50< 55< 60< 65< 70< 75< 80< 85< 90<