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 Yearling
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May
15
comment Do signs printed on the road offer a significant advantage for the user over signs on a post?
Part I - The answer to the question is 'Yes, signs printed on the road offer a significant advantage for users overs signs on a post' in certain conditions and when 'user' means 'anybody that benefits from drivers obeying the speed limit.' This is a summary of speed countermeasure research up to 2009.. Look at the section titled 'Surface Treatments and Markings'. The values in the % Change column are negative (mostly). The negative values mean drivers reduced speeds compared to the baseline, i.e., signs on a post.
May
12
comment Do signs printed on the road offer a significant advantage for the user over signs on a post?
Pavement markings (which is the phrase you want to use when searching for this topic) are effective in controlling driver speeds. See page 14 of this research summary. The reasons for using roadside elevated signage instead of pavement markings are mentioned in the research too. The answers below cover most of those reasons.
Nov
4
answered Should a tree map be scrollable?
Nov
3
revised Should a tree map be scrollable?
added tags to capture the data visualization part of the question
Nov
3
suggested approved edit on Should a tree map be scrollable?
Nov
2
awarded  Yearling
Oct
30
comment How best to provide contact info in a member directory while preventing 'data harvesting'?
Agree. None of the ideas will keep anybody that values the data from getting it. Regarding the 'Encrypt customer IDs in the URL...' You should not put anything in the URL that has any tie to authentication or contact information anyway. Regardless of your scheme for keeping unwanted visitors away from the contact data, do not put a customer ID in the url. (You probably know that but including it in the list suggests the ID might appear in the URL.)
Oct
30
comment Link between UX/HCI/Graphics?
This paper reviews many of the cognitive and perceptual issues in the data visualization.
Oct
26
awarded  Organizer
Oct
26
revised There is some research done about cognitive workload vs 3D movements?
Added the 'cognition' tag because the question is about mental workload and 3D movement.
Oct
26
comment Is the state of 'flow' equivalent to user engagement?
According to the researcher most active in the investigation of user engagement (UE), UE and flow are not the same thing. See page 24 for a comparison of flow and UE. This paper describes a comparison of UE and Flow measurement scales. They conclude the two constructs are distinct.
Oct
26
suggested approved edit on There is some research done about cognitive workload vs 3D movements?
Oct
26
comment There is some research done about cognitive workload vs 3D movements?
There has been research on the mental workload associated with 3D displays. Examples include controlling a surgical robot, identifying places in the human body, and flying an airplane. 3D displays are associated with lower mental workload in the first 2 situations.
Oct
26
comment There is some research done about cognitive workload vs 3D movements?
Unless you are asking about mental workload associated with 3D displays, perhaps you should ask the question at Cognitive Science Stack Exchange. If you are asking about 3D displays then see my other comment.
Oct
22
comment How long does it take a user to find and click an object in a list?
You can simulate the actions and get time estimates using CogTool. It is based on ACT-R and some form of GOMS.
Oct
18
revised Conveying multifacetedness
corrected the spelling of 'multifaceted' although i am not sure 'multifacetedness' is a word
Oct
18
comment How do users react to a browser request for geolocation?
@EvilClosetMonkey Understood...and the ubiquity of web site's detecting a desktop browser location without asking permission was the source of my question. When would asking permission to do something most sites do already be necessary? I do not understand the context in which this question would be asked.
Oct
17
revised Optimum number of characters in a column on an iphone or android device?
fixed the spelling of 'column' and reworded the title
Oct
17
comment Graph number alignment
The numeric vertical axis labels should be right-aligned.
Oct
17
suggested approved edit on Optimum number of characters in a column on an iphone or android device?