This publication provides guidelines to the best practice for georeferencing. Though it is targeted specifically at biological occurrence data, the concepts and methods presented here can be applied in other disciplines where spatial interpretation of location is of interest.
It occurred to me while resolving one such locality, that the use of the corrected center on the relevant part of the path is not the best reference point, nor is using the radius of the reference entity to add to the final coordinates. It would be fine if all the route was straight, but that is never the case, which means the method described is always going to be bigger than it needs to be. That in itself is conservative, so not "wrong", but it could be better.
It occurred to me while resolving one such locality, that the use of the corrected center on the relevant part of the path is not the best reference point, nor is using the radius of the reference entity to add to the final coordinates. It would be fine if all the route was straight, but that is never the case, which means the method described is always going to be bigger than it needs to be. That in itself is conservative, so not "wrong", but it could be better.