https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/6075182
London buses with signage on the passenger doors telling passengers that the doors close to the bus driver at the front of the bus are not in use - instead passengers must board & alight via the middle doors.
Filmed whilst out on my permitted daily exercise during the spring 2020 Covid19 pandemic. Original public domain image from Flickr
Public DomainFree CC0 image for Personal and Business use