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Local Scheme Assessment Decision Aid

This decision aid tool is suitable for assessing local schemes of any size in terms of cost and impact. It can help prioritize schemes and compare projects contributing to different objectives. Excel assessment matrix with national, regional, and local indicators. Authorities can customize indicators and weight them to assess project impact. Starting point: DISTILLATE C. Relevant sources: NATA, LTP guidance, BVPI. Weight and scale combined for prioritization.

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Local Scheme Assessment Decision Aid

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  1. DISTILLATE Product G2 Dr Ann Jopson University of Leeds, 21st May 2007

  2. Local Scheme Assessment • A decision aid, NOT a decision maker • Suitable for assessing local schemes of any size (in terms of cost, and magnitude of impacts) • Can run a ‘mini-NATA’ if desired • Will help to prioritise schemes contributing to an objective, or set of objectives • Can also compare projects contributing to different objectives • Excel assessment matrix • Indicators represent national, regional and local objectives • Authorities can pick and mix from our set, and/or add their own • Authorities weight indicators, then assess impact of project(s) using Likert scales • Weight and scale combined to give prioritisation

  3. Indicators • Starting point: DISTILLATE C • Other sources • Government policy: • NATA • LTP guidance • Best value performance indicators (BVPI) • Offers guidance on local indicators • Accessibility • ITS projects looking at journey quality, indicators and modelling indicators • Indicators need to be disaggregated • E.g., Greenhouse gases, local air pollution, noise, green space… not just the environment

  4. Weighting and impact assessment • Weight indicators according to local priorities • LTP likely to be a starting point • Weight each indicator on a scale of 0 – 5 • 0 being irrelevant • Assess impact of scheme on scale of…? • 1 to 4 (no mid point forces a –ve/+ve decision, neutral isn’t an option) • 1 to 5 • 1 to 7 • 1 being minimal impact • 0 weighted indicators should not be assessed • Multiply weight by impact assessment to obtain value • Low value: project may not be worthwhile?

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