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Parliamentary debates and questions

S5W-04666: Richard Lyle (Uddingston and Bellshill)

Scottish National Party

Date lodged: 11 November 2016

To ask the Scottish Government what the noise level measurements were (a) before and (b) after the erection of steel sound acoustic fencing on the M74 extension.

Answered by: Keith Brown 25 November 2016

Location

Pre-Construction (2002) 18 hour LA10 dB

Post-Construction (2016) 18 hour LA10 dB

86 Crossbank Ave, Toryglen

51.3

48.7

14 Carlyle Terrace, Rutherglen

58.7

58.1

Measurements are summarised in the following table:

Anticipated noise levels before the erection of acoustic fencing were derived from a model which predicted the traffic noise generated by the proposed motorway. As part of the modelling, baseline noise monitoring surveys were undertaken in 2002/03 at 34 locations. Post construction monitoring was undertaken in 2016 as part of the post-construction evaluation. Two of these locations (Toryglen and Rutherglen) are relevant to acoustic barrier locations.

Acoustic barriers (mainly aluminium with some clear acrylic on the bridges) were installed as part of the M74 Completion project following an assessment of the potential noise impacts of the scheme.