Why are there so many accidents caused by walking stairs in the house
Recently the newspaper stated "Dafne Schippers fell down the stairs"
as she says in runnersworld.com
Every year you read many of these articles in the newspaper or in the news. Now Dafne Schippers is super trained and young, so she will recovered again, but you can also end up hurting yourself more severe. "Why do so many Dutch people fall down the stairs?" you can ask yourself.
I think the reason for this is that the Dutch staircase is still the final step when people are building a house. In this article I will try to explain how that is possible and how these problems can be solved and we can reduce the accidents that occur annually (and some even with fatal consequences).
Why is the Dutch staircase still a final point in construction?
Nowadays, when building a house, as much living space as possible must be realized. The land prices are expensive, which means the plots are relatively small. To make the most optimal layout possible, the living space is laid out as large as possible. The space for a stairwell is therefore kept small.
And there is the problem, a safe staircase made by the stairmaker needs a lot of floor space. A walkable staircase over the full width of the stair ensures that a lot of space is needed in terms of floor space, this is at the expense of the living space and of course people would rather not.
Is building then not under regulations?
Yes, there is a building decision that is regularly revised, here are also minor adjustments such as, for example, adjusting more steps in a staircase from 13 to 15 steps, which is a good start but in my opinion not nearly enough.
The regulations according to the building decree should be adjusted, in particular the walking line in the stairs is wrong. The definition now is that a stair step may have an oblique shape and that the walking line runs where you can still place your foot properly. Now that is approximately 30 cm measured at the deepest side of the step. Actually, there should be no walking line. You must be able to position the foot over the full width of the step, seen from left to right, even though this step is sloping, only then will you get a much safer staircase.
Subsequently, the appearance must be well made in relation to the approach so that you get a walkable stair.
What is an up and down approach? The definition of Wikipedia is:
1 risen top step to top step.
2 step = front step / front step (measured at right angles).
To get a stair that can be walked on properly, the riser and the step must be in the right proportion to each other, this results in the slope of the staircase and this may differ per function, in public spaces the slope will be less faint than in a home. As a rule of thumb, the stair formula applies: 2 × rise + 1 × step = 570-630 mm.
The comfortable walking or climbing line of a staircase is the imaginary line on which the stairs are most pleasantly and safely walked. With a straight step ladder, this line applies over the entire width of the staircase and with sufficient width this staircase is suitable for falling and rising traffic. For a spiral staircase or a staircase with a lower or upper quarter, the climbing line is off center and must be approximately 300 mm from the outside. The walking line is located where the steps are the same and meets the stair formula.
The stair formula is a formula that is used to create a walkable stair. This formula is a guideline or rule of thumb and serves to check whether the correct dimensions have been used:
2 performances + 1 step = 570 - 630 mm
The formula is based on the fact that the step modulus (the average step length) is 570 - 630 millimeters. The ratio between entrance and entrance must be good, otherwise the stairs are difficult to walk on. For example, if the riser is 180 mm (2 × 180 = 360 mm), the size of the step is between 210 and 270 mm (570 to 630 - 360 = 210 - 270 mm). The landing must also be of sufficient length, otherwise the feet cannot be placed firmly.
For houses it is customary to use steeper stairs than in public buildings. If the stairs had to meet these requirements, you would say that fewer accidents would occur. Everything is less true unfortunately.
Why do so many accidents occur?
In the first place because most accidents are caused by haste and by walking down, you often want to do this quickly and you take "the inside corner" this is the part where the step is sometimes only 10 cm deep. If you walk down the stairs quietly on the wall side and not on the pivot side, it will be a lot safer and accidents will occur much less. Once you slide, there is no handrail on that side that you can hold onto.
In addition, in the early 40s and 50s there were no rules about how and what the residential building stairs had to meet.
The staircase was made by the staircase maker by making a manual result of the ground surface and made a staircase on the basis thereof. Nowadays, most stairs are made with a computer-controlled machine according to the rules of the building decree.
How can we ensure that fewer accidents occur?
In the first place by providing the old steep stairs with a good solid and strong anti-slip strip or tape, there are more than sufficient good solutions in this, in addition to make the stairs now and in the future as our neighboring countries Germany and Belgium, which are much more often make a "lazy staircase". So adjust the proportion of the tread step and preferably a staircase with a step between the steps and the straight or slightly sloping step as shown below.
Sources: -Wikipedia.org -Runnerworld.com -Bouwbesluitonline.nl
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