https://www.thestar.com.my/news/community/2013/10/18/mbpj-dismantles-boom-gates-and-barriers-in-three-pj-neighbourhoods/
MBPJ dismantles boom gates and barriers in three PJ neighbourhoods | The Star
Dec 1, 2019 - RESIDENTS in three Petaling Jaya neighbourhoods received a surprise visit from Petaling Jaya City Council (MBPJ) officers yesterday.
gates and barriers
https://www.hse.gov.uk/safetybulletins/revision-standards-powered-doors.htm
Revision of Standards for Powered Doors, Gates and Barriers - HSE
Publication of two newly revised European Standards on the safety of doors, gates and barriers - BS EN 12453:2017 and BS EN 12604:2017.
gates and barriersrevisionstandardspowereddoors