References

Scientists had plenty of opportunity to study impacts of 30km/h given the vast amount of data – it has been implemented in many countries for decades and has been trialed in small areas in Australia already.

There is vast amount of research from around the world that proves that 30km/h is the better speed for neighbourhood areas.

Safe speed: promoting safe walking and cycling by reducing traffic speed by Dr. Jan Garrard

https://www.victoriawalks.org.au/Assets/Files/Safe%20Speed%20Report%20Dec%20202008.pdf

Prof. Danny Dorling: If You Could Do One Thing: Nine Local Actions to Reduce Health Inequalities.

https://s3-ap-southeast-2.amazonaws.com/cdn-nrspp/wp-content/uploads/sites/4/2017/03/21123659/dannydorling_publication_id3924.pdf

Safe-Street Neighbourhoods: the role of lower speed limits by Dick van den Dool , Paul Tranter and Adrian Boss is a study for Australia that specifically analyses 30km/h speed limit on Australian streets.

http://barrosdool.com.au/wp-content/uploads/2018/04/ACRS-journal-Vol28.3-e-edition-extract.pdf

In 2019 the Welsh Government said that 20mph should be the default speed limit for residential areas. The Task Force Group set up to “identify the practical actions needed to implement this change” has now reported.

https://gov.wales/20mph-task-force-group-report

Report that analyses signs only 20mph speed limits. One reason for this interest is the ability to address a far larger area through speed limits only than through traffic calmed zones as implementation is considerable cheaper.

https://gov.wales/sites/default/files/publications/2019-08/the-state-of-the-evidence-on-20mph-speed-limits-with-regards-to-road-safety-active-travel-and-air-pollution-impacts-august-2018.pdf

NICE guidelines – speed humps might increase acceleration- and braking-related emissions.

https://www.nice.org.uk/guidance/ng70/chapter/Recommendations#smooth-driving-and-speed-reduction

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