This part walks through how to prioritise your low traffic neighbourhoods based on where the approach will have the greatest impact, rather than where it will be easiest.
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With limited resources, it is important to start implementing LTN schemes on a needs basis: where the approach will have the greatest impact, rather than where it will be easiest.
This should be determined with a data-led prioritisation exercise, highlighting areas with:
- poorest air quality
- highest deprivation
- poor access to green space
- highest traffic volumes, particularly percentage of through traffic
- the high density of collisions, particularly for the most vulnerable users
- the greatest number of schools
- low public transport accessibility
- low car ownership
- highest childhood obesity
- local support.
Several London boroughs have developed scoring criteria or matrices which assess all their LTNs across some of the criteria above, giving an overall priority score (see Figure 3c).
![Example map of Lambeth LTN prioritisation traffic-light system](https://www.sustrans.org.uk/media/6820/lambeth-ltn-classification-2020-sustrans.png)
Figure 3c: LTN prioritisation in Lambeth (Image: London Borough of Lambeth).