The Netherlands 1992.

Methods	CBA
Participants	I) 15 areas throughout the Netherlands C) Built‐up areas (excluding arterial roads) of the municipalities where the interventions were situated
Interventions	I) 30 km/h zones including signs, road humps, limited road width, elongated humps, raised sections, traffic islands and refuges, mini roundabouts, turning bans, diagonal closures, and speed humps with special cycle lanes. C) No area‐wide traffic calming
Outcomes	Traffic speeds Traffic volumes Road traffic crashes
Notes	Could not extract data