What is your source for the introduction of one way working on Chapter Road between its junctions with Deacon Road.

There does not appear to be a relevant traffic order in The Gazette
https://www.thegazette.co.uk/all-notices/notice?text=%22Chapter+Road%22&categorycode=G208040000&noticetypes=&location-postcode-1=&location-distance-1=1&location-local-authority-1=The+London+Borough+of+Brent%253ABrent&numberOfLocationSearches=1&start-publish-date=&end-publish-date=&edition=&london-issue=&edinburgh-issue=&belfast-issue=&sort-by=latest-date&results-page-size=100