no link, but there was a good article or documentary about 10 years ago about how you can improve throughput of an automatic-opening double door by putting a bo

no link, but there was a good article or documentary about 10 years ago about how you can improve throughput of an automatic-opening double door by putting a bollard in the centre. iirc it was over 2x increase. basically people aim for the centre and people cluster up waiting for them to pass instead of having 2 way travel all the time.