Where I live is largely single lane sunken country roads with high hedges with often no passing place for a kilometre or more so for it to work reasonably well, you rely on drivers being sensible and keeping an eye on the passing places and using roadcraft to look well into the distance in case someone is coming the other direction and then either you pull into the next passing place and flash them to signal they can have the section, or if you are past the passing place the general rule is the vehicle nearest to a passing place is the one that will reverse into it.
Unfortunately, it would appear these days that the larger and more modern and flash looking the 4x4 (and I'm sorry but it seems to be largely those driven by women, even my wife says so, we suspect largely 2nd home owners from London or such pretending to be countryfolk for the weekend), the less able they are to either drive onto the verge or push into the hedge or ditch slightly to allow both vehicles to then squeeze past each other, or failing that to successully reverse to a passing place to negotiate the otherwise impasse. I've lost count of the number of times I've ended up having to reverse when some idiot I've met is obviously incapable of driving their vehicle or being able to judge its width. Once I had to reverse about 2 kilometres along a single track in the rain and dark and they even had their head lights on full beam. I wouldn't mind so much, provided I'm not on a tight schedule I'm reasonably tolerant of those less skilled or experienced at driving, but these days it's getting a bit too frequent that having done all that you then don't even get a thank you wave or slightest signal of acknowledgement.
But I do know a local guy who once when confronted with this situation, and he happened to be towing a trailer with sheep in as well so you would have thought some common sense would have prevailed given those circumstances, when a woman in some kind of brand new Range Rover Evoque starship Enterprise thing with as usual, not a trace of mud on it, just wouldn't reverse back to the passing place that was just 50 metres behind her. She wanted him to reverse instead and gestured as such. So, since he was in no rush, he simply turned his engine off, got his flask of tea out and settled down and started reading his newspaper. After 20 minutes or so of her pulling faces, gesticulating and horn beeping which he responded to by just smiling and waving, he said she finally got the message that he just wasn't moving and so with predictably great difficulty she managed to reverse with the usual glowering face typical of so many of these people who assume they are for some reason entitled to always getting their way at the expense of others.
