automatic boom barrier
automaatne tõkkepuu, automaattõkkepuu
ülevaateid
https://en.wikipedia.org/wiki/Boom_barrier
https://5.imimg.com/data5/DL/KQ/MY-7047655/rfid-vehicle-access-500x500.jpg
http://www.krishnaparkinfracon.com/wp-content/uploads/2014/03/Screen-Shot-2014-09-22-at-12.35.15-pm.png
näiteid
https://www.youtube.com/watch?v=5X62FH8WqRw
https://duckduckgo.com/?q=boom+barrier&t=h_&iax=images&ia=images
https://parklio.com/en/blog/top-10-best-automatic-boom-barriers
