📜 ⬆️ ⬇️

Motion algorithms of the late passenger

Anyone who uses public transport at least once in his life faced with the fact that right from under his nose he left the right bus. It would seem that just a few seconds was not enough to make it in time, but the doors had already closed and the bus started off, leaving a puffed and saddened person at the stop. And most of all, the culprit is not the bad character of the driver and not the physical preparation of the “runner”, but the incorrect setting of the goal. However, first things first.

Imagine a situation where a person has not yet reached the stop, but he saw that the bus with the necessary number was already finishing the boarding of passengers. Take a situation that is statistically more often the rest sadly ends: the person saw his bus and at that moment he was not at right angles to the doors and not in front of the driver’s cabin, but at an angle to the back of the bus out of sight of the driver. See fig. one.


Fig. one


Fig. 2
')
The person has the goal "to run until the bus is gone." When setting such a task, it is most logical to use the shortest possible distance in a straight line from the starting point to the vehicle doors in the shortest possible time (see Fig. 2). As we know from the course of school physics, for this we need the maximum speed. But since we don’t know the time until the doors are closed, often even the maximum speed is not enough to cover the required distance.

But if we formulate the goal differently, then the solution to this seemingly simple task will become different. The goal is not to “run so far until the bus has left”, but “let the bus not leave while I am running.” Now you just need to run to the road, and then move along towards the bus (see Figure 3). The fact is that the driver, before closing the doors, looks in the side mirror for safety. He will notice you and, most likely, he will wait.


Fig. 3

After the introduction of the human factor in setting goals, even in solving such a trivial task as reaching the bus, the frequency of successful completion of the mission has increased tenfold. To consolidate the material and expand the space for discussion in the comments, I propose the question: which hand is best to hold on to the rail when the vehicle is moving, right or left? Try to use when searching for the answer not only the physics and anatomy of man, but also the human factor.

Source: https://habr.com/ru/post/363539/


All Articles