clm-fdc8ba976f83ef86
quantitative
opened 2018 after a participatory process with local people in 2017
Permanent project revision
Revision 2026-08-27-editorial-review · effective 2026-07-16
Current revision. This is the snapshot used by the live entity page.
Lower the evidence grade: every impact figure here is carried by trade press reporting the health agency, not by the agency report itself.
sha256:cb4f9ccff523d6e00bf2c9c5f5fd6823bf46883ebc6e53190b84aa02fc04d9d5
replace /snapshot/projectFingerprint — Updated projectFingerprint to the current sourced project record.replace /snapshot/projectState — Updated projectState to the current sourced project record.The text below is copied verbatim from the published record. Each claim names the source dossiers that carry it; caveats stay attached to the claim they qualify.
clm-fdc8ba976f83ef86
quantitative
opened 2018 after a participatory process with local people in 2017
clm-ba0fe36113dacfd7
quantitative
the city reports street-calming here having cut traffic by an average of 17%
clm-86b19c3b0600c655
quantitative
Since 2023 the Collboni administration has kept it while reworking the temporary tactical layout into a permanent redesign
clm-9135f1119be96e10
quantitative
Barcelona's public health agency measured a 25% drop in NO2 and a 17% drop in PM10 inside the Sant Antoni superblock
clm-d256a1b873abb6dc
descriptive
the strongest result of the three it assessed over three years, since Horta showed no significant change and no data could be collected for Poblenou
clm-4e758649d0afc00d
descriptive
residents perceived pollution rising on the surrounding streets, and the agency's own technician said a count of cars or pollution outside the superblocks was not available
clm-7104288688a33e35
descriptive
Families in Sant Antoni said the superblock let them move around more freely but created a false sense of security, because the main corridors still carried too much traffic
clm-d0db4adb45857652
descriptive
a quarter less nitrogen dioxide on the health agency's own numbers — and the same agency reported that nobody counted the cars or the air on the streets the traffic was pushed onto
clm-9951e68ce83b09c9
descriptive
Of the three superblocks assessed, one showed no significant change and one could not be measured at all
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sha256:cb4f9ccff523d6e00bf2c9c5f5fd6823bf46883ebc6e53190b84aa02fc04d9d5
src-ac9b2e90f3480d45Official superblocks programme page; carries no publication date.
src-62dfc6664480cf35City news page, 15 February 2023: the participatory process with local people in 2017, an average 17% reduction in traffic from street-calming measures, and the works updating benches, seats, traffic lights, streetlights, water springs and garden tubs.
src-d2de93fc6662cbfc18 October 2021: a report by Barcelona's Public Health Agency (ASPB), 'Salut als Carrers', assessing three of the four superblocks over three years — a 25% drop in NO2 and a 17% decrease in PM10 in Sant Antoni, no significant change in Horta, no data for Poblenou, residents perceiving pollution rising on surrounding streets, and the agency's co-author stating a count of cars or pollution outside the superblocks was not available.