Unverified50% confidenceFactExact time
According to 99% Invisible, San Francisco's guerrilla bike lane actions began with cycling advocates' dissatisfaction over the slow progress of official planning.
1
Sources
50%
Confidence
Long-term
Relevance
11/5/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedIn 2016, a group of cycling enthusiasts in San Francisco used homemade separation devices to mark out unauthorized bike lanes on the streets.73% similarUnverifiedIn form, guerrilla bike lane actions constitute unpermitted street construction and can be regarded as an urban practice of civil disobedience.70% similar
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