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Introduction

EEH is a Sub-National Transport Body responsible for the region spanning Swindon to Cambridgeshire. They required a transport related carbon evidence base to inform the development of a decarbonisation strategy for the region. The objective of our work was to identify, analyse and validate current transport carbon emissions, and to then determine potential routes to net zero. We assessed a range of net zero timescales to reflect both local and national commitments, including delivery by 2040 and 2050. Our outputs included a ‘local decarbonisation roadmap’ tool and accompanying report, which were both successfully delivered to time and budget.

Challenges

To deliver a net zero UK in line with international agreements and domestic law, national annual carbon dioxide emission budgets have been determined for future years. Routes to net zero have been determined at a national scale by organisations including the Climate Change Committee, Department for Transport, and Tyndall Centre. Observations of current transport emissions by different sources have also been published at the national scale. However, to support local action, it is necessary to translate both emissions data and net zero routes down to the local authority level. Our scope for this project was to produce local-scale current-emissions analysis and net zero routes that are consistent with the national picture. To maximise insight, net zero routes and we segmented emissions data by the following emissions sources: car; HGV; LGV; minor road; major road; and strategic road.

Solutions

Various national routes to net zero were reviewed so that differences in methodologies could be reconciled. Including analysing local and national data to ensure equitable comparison of the routes upon disaggregation. We created a database of consolidated national-scale net zero routes and an interim report on their differences.

We proposed a methodology for disaggregating the routes and the emissions data to the local scale. We agreed: the categories that emissions data and net zero routes should be segmented by, and that routes should be shown for a range of net zero dates including 2040 and 2050 to reflect local and national commitments. We then implemented the disaggregation methodology, drawing on our database of national-scale pathways and data from the Dft, Dfb, Energy & Industry Strategy and the ONS. This was delivered in our interactive Transport Decarbonisation Strategy Tool, allowing local authority partners to explore the data themselves.

Results

The tool and report were delivered to EEH alongside a well-received presentation. EEH then cascaded the tool and report to their local authority partners. This was followed by a meeting between EEH, their local authority partners, and our City Science team, which focussed on lessons learnt from the project and identified next steps for progressing decarbonisation in the region. Next steps, include analysing the impact of potential policy interventions in order to determine how net zero can be achieved.

We’ve been delighted with the work City Science have produced for EEH and the support that the team at City Science have provided. The work has been presented in a clear and concise manner, on schedule and at a competitive price point.

James Golding-Graham
Innovation & Decarbonisation Manager, England’s Economic Heartland

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