What is the lateral safety distance?
The lateral safety distance refers to the lateral limit that must exist between one car and another on the tracks. It is true that any driver is likely to deviate from the path that marks the lane while driving. But if that deviation coincides in space and time with another driver, it can cause accidents. And if there is not an adequate distance of reaction when driving, accidents can reach greater
On narrow roads, this distance is much more important than the vertical distance between cars, as you have to take into account both the space left at the sides of the car and the distance to the sidewalk and the interior tracks.
We could even say that this distance is more important in safety matters since the slightest sudden movement in a narrow space can cause an accident.
How to calculate it? The answer is simple. When driving, or whenever you have to park your car, always leave a lateral distance imagining an open door of the car. That should be the minimum distance you should move.