Cross Tay Link Road

Cumulative effects refer to how an environmental resource/receptor may be subject to a particular type of impact from more than one development or project. The impacts from multiple developments or projects may overlap; or act in combination, at a particular location or upon a particular receptor/resource, thereby potentially leading to more significant environmental effects than if the impacts were considered in isolation. For example, two projects resulting in significant impacts upon the cultural setting of a designated asset may lead to more significant setting impacts than just one of the projects.

The Cumulative Environmental Assessment (CEA) has taken account of the potential for significant effects which may arise from the construction and operation of the proposed CTLR Project, together with other consented developments. The CEA has also considered other ‘reasonably foreseeable’ development proposals. Due to the long-term nature of the potential effects of the proposed CTLR Project (positive and negative), the assessment has considered two future years after the projects are anticipated to be completed. These assessment years are:

• 2023: considered representative of the opening year; and
• 2038: considered representative of a future assessment year.

The inter cumulative assessment took account of other reasonably foreseeable developments which included sites identified in relevant LDPs and key planning applications which were considered cumulatively with the proposed developments in a 2023 assessment scenario. A cumulative assessment was also undertaken for the proposals in combination with the predicted longer term (2038 future year) environmental effects from development of housing and commercial property sites set out within Perth and Kinross Council LDPs.

 The intra cumulative assessment considered the additive or amplified effects resulting from environmental effects on ‘shared receptors’ and also where sources of effect from different components of the project may combine to be of greater significance than when considered alone.

Inter cumulative effects were identified in Chapter 2. These were with regards to loss of habitat and ancient woodland, increases in noise at specific receptors, overall loss of agricultural land and increases in traffic across the local and regional road network. It was also with regards to improvements in active travel, connectivity and the likely contribution from community benefits that the proposed CTLR Project and the future developments could generate. These effects would be expected with regards to the level of future development proposed within and around Perth and particularly those sites within a close proximity to the proposed CTLR Project.  

Intra effects were identified during construction and operation on the following receptor groups; Luncarty, Sherrifton Cottage, Balboughty, New Mains, Coupar Angus, Balbeggie, Bridgend, Perth (City Centre), Broxy Kennels, Scone GDL, River Tay SAC, Highfield Plantation, Bertha Park & Woods and Denmarkfield. These will be mitigated against as far as possible, but some will remain due to the nature of the impact (loss of ancient woodland, loss of habitat, etc).

To view further information and the full Cumulative Environmental Assessment please click: