Cross Tay Link Road

A detailed modelling assessment has been undertaken to determine the effects from changes in noise levels from the proposed CTLR Project on Noise Sensitive Receptors (NSR). There is a number of NSR, such as residential and commercial properties, within the study area that currently have little exposure to road traffic noise.

The temporary noise and vibration effects of the project during construction have been considered; although these effects may be significant at times, the effects will be short term and will be mitigated, as far as reasonably practicable, through implementation of Best Practicable Means and subject to other control mechanisms administrated by The Council Planning and Environmental Health Departments (i.e. the CEMP and contractual requirements).

Predictions of road traffic noise across the study area have been undertaken for scenarios with and without the CTLR, in the base year (2017), year of opening (2023) and the future assessment year (2038). The future assessment years with the proposed CTLR Project include additional trips associated with future residential developments that have been consented and are identified in the Local Development Plan (LDP). Given the interdependence between the CTLR and the residential developments, these future trips are assessed as part of the future impact of the CTLR Project.

A baseline noise survey across the study area has determined existing levels of environmental noise at locations agreed in advance with the Council. These measurements have been used to contextualise the predictions of absolute levels of road traffic noise and the changes that will occur because of the proposed CTLR project.

The assessment has considered whether noise barriers are required to reduce noise levels associated with the future traffic flows. This assessment has determined that a roadside bund will be included on the north side of the proposed CTLR mainline beside Newmains Steadings.

The road traffic noise associated with the proposed CTLR Project is predicted to be localised with the majority of existing NSR close to existing sources of road traffic noise (A9, A93 and A94). Therefore, negligible or minor adverse impacts are predicted.

Significant adverse effects are predicted at existing NSR close to the CTLR mainline where there is currently little contribution from road traffic noise and the predicted change is therefore of greater magnitude. However, absolute levels of future road traffic noise often remain less than recommended in current standards and guidance.

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