I Want to Redesign These! The Championship of Easily Confused Things

In this world, there are many things that are strangely similar in shape even though they absolutely must be distinguished.
For example, in manufacturing settings, if the start and stop buttons look similar, it could lead to accidents, so the stop button is often made larger and more obvious than anything else. Unfortunately, there are many things in the world that are not designed that way.

This time, I would like to introduce things that are easily confused and could potentially lead to accidents, which I really want to redesign.

"Open" and "Close"

These are the ones found in elevators.
They have the same gate radical and are very similar. In older elevators and facilities, the characters are often worn down and hard to see.
These are things that could lead to accidents.
However, in actual elevators, as a countermeasure for this,
they are written in hiragana as 'hiraku' (open) and 'tojiru' (close), or they are represented by icons. In many cases, countermeasures have already been taken.

"♮" and "♯"

The natural ♮ and sharp ♯ symbols that appear in musical scores. Especially when they appear as accidentals, they are incredibly similar in shape, and it is not uncommon to mistake one for the other.
However, if you mistake the ♮, which is the original pitch, for the #, which raises the pitch by a semitone, and play the note, the music you have built up until that moment is ruined in an instant.
It is said that originally, natural, sharp, and flat all originated fromthe "b" symbol created to distinguish semitone changes of the note "si"which was simplified and transformed over a long history into its current form, so perhaps the fact that they share the same roots is why they look similar.
The flat "♭" still has a slightly different shape, so it is not mistaken, but the natural ♮ and sharp ♯ are truly similar, so on small musical scores, they are very easy to confuse.
If redesigning were permitted, I would definitely want to change them into symbols that could never be mistaken.

"Shiritsu" (Private) and "Shiritsu" (Municipal)

Why is this so confusing! As a child, I thought, 'The person who came up with this first, please think a little more!'
"I decided to go to a shiritsu school."
Huh? Which one???
That is what happens.

As a countermeasure for this, there are even alternative pronunciations like 'watakushiritsu' and 'ichiritsu'.
Please make them distinguishable from the start...

Signs where only the text written in red paint has faded

Have you ever seen a sign like this in a park or similar place?

It says, "Pleasetake your trashhomewith you."
However, red paint is weaker against ultraviolet rays, and the color has faded due to long-term installation.
As a result, only the parts written as important have disappeared, leaving only characters that make no sense.
Visibility at the time of production is important, but if it is something to be used for a long time, it should have been created with durability in mind.

EtherNet and EtherNet/IP

Something seen in the manufacturing industry that is often confused is EtherNet and EtherNet/IP.
EtherNet is the standard for LAN connector shapes and communication speeds.
EtherNet/IP is an industrial network communication standard that uses EtherNet.
It is generally explained that you use EtherNet hardware to run EtherNet/IP software.

The name "EtherNet/IP" is also confusing.
The "IP" here is not the Internet Protocol from TCP/IP, but apparently stands for Industrial Protocol.

Grr, to have absolutely nothing to do with TCP/IP, this is something that might be common knowledge to those in the know, but it is extremely misleading.

Road signs

There are many road signs that are hard to understand.
It's as if they assume that since you have a driver's license, you should already know them.
From the left, these are:
・No vehicles allowed
・No parking
・No entry for vehicles
.
The signs for 'No vehicles allowed' and 'No parking' look too similar, and even in Japanese, the difference between 'No vehicles allowed' and 'No entry for vehicles' is hard to grasp.

The fact that the 'No parking' mark is not intuitive is also a problem.

I understand that each has its roots, but they are difficult for viewers to understand and could potentially lead to accidents.

I should clarify that I am aware that the shapes of these marks have meanings and origins.
However, I also believe that we must prevent any accidents from occurring because these are difficult to understand.

Looking to the future, I want someone to redesign them.