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2

FYI, the overhang is called nosing. Stair nose is used to create a decorative finished edge on a stairstep or staircase The primary reason is aesthetics and cost savings--not UX. Like a door or window casing, the stair nosing covers the seam between two materials meeting--in this case the tread and the riser. While it may cost more in materials, ...


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I've not done this before, but I am going to answer my own question because after reading each of the answers here, I found that I needed to dig deeper to find a definitive answer. Nosings offer multiple usability benefits The world's foremost expert on stair design seems to be John Templer, formerly Regents' Professor of Architecture at the Georgia ...


4

This is conjecture as well but consider this analysis of stair climbing gait, specifically the transition from stage IV (Forward Continuance) → V (Foot Clearance) → VI (Foot Placement): In particular, note that while lifting the leading foot, the knee flexes more than the hip, thus causing the toes to have a net backwards movement. If you ...


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Step size and security When they are well designed, they seem to prevent more incidents than what they cause. There's a lot of information in Pauls, Jake. "Relating stair nosing projection, tread run dimension, shoe geometry, descent biomechanics, user expectations, overstepping missteps, and closed-riser heel scuff missteps.". I've not found studies that ...


1

This is a very interesting question. and all the reasons you carried maybe reasonable but nothing related to the toes and heel ... it is all about human comfort. The comfort space to get you feet onto a stair is 30cm tread X 15cm raise, but the comfort space for your next step average from 26cm to 28cm more than that you will make an extra effort to reach ...


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I am afraid my answer might not be considered as the definitive source as I am just quoting someone in a forum but the primary reason is to enable users to walk down steps better by providing more grip and space. To quote the post. For safety in going down the stairs. When you step down the stairs, you place the ball and toes of your foot on the tread ...


0

UCD and UE are different for one reason: products are dynamic. They can be in tune so long as the directive of the product doesn't change. That rarely stays. Because products, and the features that make them up, change regularly, the way that they are developed changes too. It's rare that the UE and UCD remain in tune the whole time unless the team making ...


2

I think you'll find that different people will have different opinions about this, so while this is probably just my opinion, I will try to explain it in the most objective way I can think of. When you approach design from an 'engineering' perspective, it is about providing a solution to a problem that comes from first principles. That is, you come up with ...


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That depends on your research question/s, but is nearly certain to be part of your research methodology. Research method If the evaluation is part of proving/disproving a hypothesis, or more commonly assessing the pros/cons of the resultant design in a thesis that aims to develop a system, then the choice of evaluation method (which you'll have to justify) ...



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