![A street outside a primary school is closed to motor traffic using flower planters to create a "modal filter" in Southville, Bristol Stock Photo - Alamy A street outside a primary school is closed to motor traffic using flower planters to create a "modal filter" in Southville, Bristol Stock Photo - Alamy](https://c8.alamy.com/comp/2H5MWKK/a-street-outside-a-primary-school-is-closed-to-motor-traffic-using-flower-planters-to-create-a-modal-filter-in-southville-bristol-2H5MWKK.jpg)
A street outside a primary school is closed to motor traffic using flower planters to create a "modal filter" in Southville, Bristol Stock Photo - Alamy
![Critics of UK low-traffic schemes told that 25,000 filters already existed | Transport | The Guardian Critics of UK low-traffic schemes told that 25,000 filters already existed | Transport | The Guardian](https://i.guim.co.uk/img/media/d787b4f34b983a91d5217d00cf0a237595d5646b/0_204_6118_3671/master/6118.jpg?width=1200&quality=85&auto=format&fit=max&s=dbb9b669c8009e602723c2ddbdc61fa4)
Critics of UK low-traffic schemes told that 25,000 filters already existed | Transport | The Guardian
![Example of a modal filter, Walthamstow neighbourhood (source: Rachel... | Download Scientific Diagram Example of a modal filter, Walthamstow neighbourhood (source: Rachel... | Download Scientific Diagram](https://www.researchgate.net/publication/347906887/figure/fig2/AS:974767309996033@1609414045852/Example-of-a-modal-filter-Walthamstow-neighbourhood-source-Rachel-Aldred_Q640.jpg)