I did a little driving and walking on and along asphalt this weekend. Noticed two things, there is an edge to the asphalt and there is usually a line in the centre of it. The rule is, “Stay in your lane”. If you are walking you stay on the gravel edge before the asphalt if a car is coming. If you want to walk on the asphalt facing traffic, that works, you just need to move when a car is coming, because that is the car’s lane. This is quite a level of trust we put in this edge / line. When walking you can be 2 feet or less from sudden death.
When driving, this 4 to 5 inch line (guessing as I have never stopped on a big highway to measure it) is in white or yellow and shows you where your lane is for your car. If you go over the line, and there is another car coming, guess what? Bang.
For boating, there are no lanes. One thing we did for water skiing was a key hole turn. You maneuver the boat to turn back to where you have just been. Usually in pursuit of flat water. You try to follow the boats old path to minimize the waves for the skiier. The boat leaves a bit of a bubble trail which can be followed, but note, other boats don’t see this as some sort of line in the water, so staying in your lane is tough. Boating has other rules for who has the right of way. Important to know those, sailboats, dragon boats and float planes need you to get out of the way !!!!!
I worked with a man a few years ago who used the “Stay in your lane” statement for jobs and roles in a big corporation. Jobs and roles are set up so people have responsibility and authority for specific processes and outcomes. He was trying to point out that if we work on what we are supposed to most everything will function much better. Kind of lines in the corporate process highway.