Passage A After a storm, volunteers using a mapping platform updated closed roads and damaged bridges within hours in the capital region. Emergency teams downloaded the revisions before the next official map release. Passage B A coverage audit found far fewer active contributors in remote mountain districts. Road changes there sometimes remained unrecorded for days because no local mapper submitted observations. Regarding crowdsourced map coverage, which option offers an accurate evidence-based integration of Passage A and Passage B?