As someone who walks everywhere I naturally regard motorists in London as bastards but at Abbey Road I had to have some sympathy for them, as clueless Beatles fans from around the world come to block traffic so they can take their poxy picture of their mates copying that album cover. To be fair, some people were considerate and waited for there to be no traffic, but others just felt it was their right to get in every-ones way. Ever helpful, I have two possible solutions.
The first one is more complex, it involves changing the rules in Parliament to grant an exemption to the crossing in Abbey Road so that, on approaching it, a driver is entitled to put their foot down and drive into the people and will not be prosecuted for any crime. Any Beatles fans that come to Abbey Road from around the globe will soon learn they can either not inconvenience people or they can risk death. After a couple of years we will have done our bit to help get rid of some of the more stupid people in the world. At that point we should get the Justin Bieber of the day to release an album with a cover of them copying the Abbey Road cover. That should refresh things again.
The second is simpler but funnier. Either replace the zebra crossing with a pelican crossing or just move the zebra crossing about 300 yards up the road so it's not the original any more. Set up a 24 hour camera to watch fans having coronaries.