For questions involving physical interfaces and interactions with "real world" objects.

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9
votes
5answers
253 views

What perceptual mechanism governs this road indicator design?

In this roundabout design, arrows(?) point against the flow of traffic (traffic flows along on the right side of the road). You can particularly see it in the second image. They indicate that you ...
1
vote
5answers
256 views

ALL CAPS fonts for industrial use

I'm on a plane and noticed the use of all caps on the flight crew phone: Generally I found the phone very well designed: it has rounded colors, decent contrast, is unobtrusive for passengers, and ...
1
vote
3answers
134 views

Laptop usability design flaw from a big corporation

A few months ago I wanted a new laptop, so I ordered it from a big brand considering its solid features (like core-i3, 4 gigs of RAM, etc.). The laptop is perfect and runs well, but it has a small but ...
5
votes
3answers
857 views

How long should automatic doors delay closing?

Automatic doors have a sensor that detect whether people are present, and when there are none, and after a delay, the doors close. How long should that closing delay be? Does it depend on factors ...
15
votes
6answers
583 views

Why do stairs have overhangs?

Most stairs (at least here in the US) have an overhang or 'nosing' where the edge of the stair protrudes over the riser: I've heard different reasons for why the nosing exists, but I've not been ...
40
votes
4answers
3k views

Why are messages on the road printed in reverse?

After reading this question, something occurred to me that I've always wondered - but never thought to ask. Why are road messages/signs printed in reverse? (source https://xkcd.com/781/) Anytime ...
66
votes
12answers
9k views

Do signs printed on the road offer a significant advantage for the user over signs on a post?

I was driving earlier today and I came across a stretch of road that didn't have signs for the speed limit but instead had it written on the road like so: Image source It got me thinking that it ...
0
votes
1answer
85 views

Is there a human advantage to painting heavy equipment (aka “baggers”) bright yellow?

Is it just branding, decoration, or is there an actual human-centered reason for it?
3
votes
3answers
233 views

Why do we say that door knobs afford twisting?

So many basic discussions of affordances begin with the example of door knobs affording twisting. It seems to be the second example used in Norman's 1988 definition, even. However a symmetric round ...
6
votes
1answer
123 views

Using warnings to reduce printer waste

I've seen where businesses try to limit printing usage by limiting users from printing more than 100 or so pages per month with an application like this: download bmml source – Wireframes ...
63
votes
9answers
6k views

How to convey: “don't move until the task is done!”

Our local public transportation system uses electronic cards (something like RFID technology) to validate rides. Users enter the vehicle and place their contactless card against a reader, and a beep ...
13
votes
16answers
1k views

How can I get people not to put trash in recycling bins?

In my office space we have a main trash can and "recycling" can in the break room. They are simply two bins, with the same color, that are hidden in a cabinet. Outside of the cabinet are two ...
4
votes
2answers
116 views

UX to consider on a business card design

On a UX stance, what are the best practices to consider when designing a business card? I've done some research in order to find some that I might not have considered and I have to admit that I've ...
1
vote
5answers
224 views

Why to loosen always by rotating it counterclockwise and to tighten by rotating it clockwise?

For example: Screw / bolt Bottle design Why this intuition works for most people? Does it have anything to do with the right-hand rule?
87
votes
12answers
19k views

Why do showers have “hot” and “cold” knobs rather than “temperature” and “quantity” knobs?

I do not understand the advantage of the popular "hot" and "cold" controls in showers, as opposed to "temperature" and "quantity" controls. Is it simply because the latter option is harder to ...
2
votes
2answers
174 views

Why do revolving doors rotate counterclockwise?

In all my life I have never seen a clockwise revolving door. How did counterclockwise become standard?
1
vote
2answers
161 views

Why are elevator doors always too small? [closed]

I noticed that elevator doors are always narrower than the compartment, so people get jammed up trying to exit. Why don't they just design elevator doors so they are wide enough for everyone to exit ...
1
vote
1answer
118 views

What is the purpose of jackets having small zipperless back pockets just below the neck?

I was a little bit surprised to find that my Bench-branded 100% polyester jacket had a little zipperless back pocket just below the neck, especially since placing something like keys there would make ...
5
votes
2answers
134 views

Are dial format speedometers more effective than numeric speedometers?

I recently criticized a sketch of a automobile instrument cluster concept that indicated speed with a bar gauge and a numeric readout. I and many others suggested that a dial speedometer was easier to ...
34
votes
12answers
7k views

Why do speedometers (in the US, at least) go so high? [closed]

Typically one doesn't drive much faster than 80 MPH. Even in an emergency passing situation, it would be extremely rare to drive more than 100 MPH. In fact, as far as I know many cars have governors ...
13
votes
4answers
165 views

How to indicate which way the boards plug into each other?

I'm developing a board like this that serves as an adapter for a given board that needs to be plugged like this given that the board size is the same, users tend to plug it the other way, the way ...
9
votes
3answers
526 views

Why are coiled cables rarely used?

Yesterday I saw an interesting idea: What are some potential reasons why so few cables have a coil in their middle - like old telephone cables? I know that we don't want all cables to be like that, ...
25
votes
7answers
6k views

How can a retractable pen design be enhanced to discourage users from clicking the pen frequently?

Retractable pens typically have a rather noisy mechanism. Some users periodically start pressing the pen button frequently (while they're talking on the phone or while they're waiting for some result ...
3
votes
1answer
81 views

What is the best way to visually indicate correct plug alignment with socket (hardware)?

I currently have a problem where users are not correctly aligning a plug with a socket on an electrical device, leading to the plug being forced and the pins breaking. Users have suggested putting ...
14
votes
2answers
382 views

What was the reason behind total transition towards wide screen displays by the manufacturers?

I often hear complaints by users who are not satisfied by the wide-screen monitors and prefer traditional screen ratios of 4:3 and 5:4. Unfortunately, such monitors now are quite rare and the laptops ...
1
vote
4answers
199 views

How to design a physical device?

I have an idea for a product startup. It is a wearable device with one functionality, around which I and my friend started to think. We are pretty sure that we can develop it with only this ...
0
votes
2answers
206 views

Is there a benefit from driving on one side of the road, while sitting in the other side of the car?

I've noticed that cars/automobiles manufactured for countries with right-hand traffic (where vehicles drive on the right hand side of the road) place the driver's seat on the left hand side of the car ...
124
votes
12answers
22k views

Why do idle elevators close the doors?

If the elevator stops on a floor, opens the doors to let the passengers out, and hasn't received a command to go on another floor, why does it close its doors afterwards? If the elevator is not on my ...
7
votes
9answers
3k views

How can employees be subtly reminded that when they talk loud in the cubicle farm corridor they disturb people in the cubicles? [closed]

We have a software shop with a cubicle farm where cubicles have non-transparent (painted drywall) walls about 1,5 meters high. There's a corridor running through the farm. Most of the time all the ...
3
votes
2answers
226 views

Is it really a bad thing to place an ad TV in front of the stairs?

We have the following room arrangement with a plan on a 40 inch TV mounted on the wall. download bmml source – Wireframes created with Balsamiq Mockups In this place people usually walk ...
5
votes
4answers
225 views

How can railroad operator help passengers find power outlets below their seats?

There'a railway car with passenger seats looking roughly like this (please ignore the seatbelt): Seats are arranged in ICE fashion - two rows with a passage between them, two seats in each row, ...
2
votes
6answers
249 views

Volume controls and mute order

I'm designing a remote control that only have Volume Up, Volume Down and Mute. But I can't decide where to put the mute button, in the middle or on the bottom. And what should I have for the Mute ...
6
votes
1answer
509 views

Is an office-lobby monitor slideshow any more usable than a homepage carousel?

I've got a real-world variant on the classic "Are Carousels Effective" question. My office, like many others, has a 40 inch LCD TV hanging on the wall in the lobby, and on it displays a looping ...
17
votes
3answers
3k views

Board game design: Which design is clearest to indicate failure?

I'm trying to design a board game (and am not an artist) but want to ensure that I've got some practical aspects designed appropriately for the layout of a card. I tried asking on ...
1
vote
5answers
208 views

What is the best way to arrange chinese words on a menu [closed]

On a English menu , the food items can be arranged according to alphabetical order For a Chinese menu , there are no alphabet, only chinese characters , what would be alternative way best to ...
42
votes
2answers
2k views

Why don't ATMs show blank arrows for unused buttons? [closed]

Have you ever had trouble lining the arrows up with the correct button on ATM consoles and other similar interfaces? Height of user can affect perceived alignment, as well as poor installation or ...
4
votes
6answers
225 views

Encourage use of only one roll at a time from toilet paper dispenser

The toilet paper dispenser in a bathroom stall at work made me think of an interesting problem. There are two rolls hooked up and ready for use at any time. As the rolls get smaller and smaller, the ...
4
votes
1answer
136 views

The usefulness of home appliances sound notification?

In our homes we now have home appliances such as a dish washing machine, a microwave oven, a washing machine, a tumble drier. Every one of these appliances makes a little sound notification when it's ...
1
vote
2answers
178 views

Optimising urinal use [closed]

When you visit a urinal (so one for the gents), you’ll find that where urinals are arranged in groups of 3, the middle urinal and floor are typically cleaner than those to either side. This stems from ...
-1
votes
1answer
268 views

What shape should toilet seats be? [closed]

This is something which has been annoying me for a while now. It seems a simple question: what shape of toilet seat is nicer for the user? However, I've asked around a bit and there's quite a lot of ...
2
votes
3answers
165 views

How technical should airline pilots be?

I've been on a few flights recently, and idly listening to the captain talking to the passengers got me thinking: The captain's world is very different from the passengers' world. The captain has to ...
0
votes
1answer
195 views

Toaster's “bagel button” does not work. UX or engineering issue? [closed]

Below is picture of my toaster's front panel. I put bread in, press the "bagel" button, and a bagel does not come out. I simple get toasted bread. A bagel is totally different. I claim this is an ...
28
votes
9answers
3k views

How can wiring systems be designed to not rely solely on colour?

Yesterday I was faced with the challenge of replacing the stock radio in my vehicle. The stock radio had broken, and it was time for a new one. As it is, building the proper wiring harness is already ...
6
votes
2answers
302 views

Does drawing a dash across the numeral 7 (seven) increase readability?

The RBRC battery recycling logo was recently updated to add a dash to the final digit 7 (seven) in the phone number: Does this increase readability? In what situations, if any, is writing the ...
0
votes
1answer
93 views

Do new pedestrian crossing buttons show an activated state?

I think many people are familiar with the situation of people waiting at the pedestrian crossing and repeatedly pressing (sometimes bashing) the button in the belief that it might somehow speed up the ...
98
votes
20answers
14k views

Toilet flush buttons

This question has been bugging me ever since I've started learning usability. I am talking about the two buttons for the flush : Full and half container. On one hand, the button shape has to ...
50
votes
8answers
11k views

“Do Not Disturb” tags in hotels, how can they be improved?

We've seen keys being replaced by key cards, new LCD TVs, WiFi and LAN in each room but the one thing that doesn't seem to have changed is the "Do Not Disturb" tag that can be hung on the doorknob ...
13
votes
4answers
967 views

Why are double-handle taps still installed in households and public washrooms?

I'm wondering why double-handle faucets are still installed in sinks, bathtubs, etc in newer places of dwelling as well as public washrooms. From reading, they appear to be easier to install, but ...
4
votes
2answers
2k views

Why most of the microphones are placed on the left of headsets / headphones?

I've noticed that the mayority of the well-known brands (Sennheiser, Logitech, Plantronics, Razer, SteelSeries, Audio-Technica, Phillips, etc) tend to make headsets with the microphone on the left, is ...
0
votes
1answer
327 views

Why are push and twist switches more common in lamps than pull switches?

More than once, I've reached under a lampshade to turn on/off a light and had to a) search around hoping I didn't burn myself to find the switch and b) figure out which type of switch the lamp used ...