curvature and slope

[meccanicamg]

because the Italian roads have curves with the highest curved interior and the lower curved exterior that facilitates the radial exit on the wet while the railway tracks have the opposite slope. It seems to me that in the autodrome they are like in the railroad or wrong?
I'm afraid the pineapple has made something wrong in the construction of the roads.
How do you think?

 

[rinato]

Hello, are you referring to the hairpins or is it a general speech?

 

[Lettore espatriato]

Good morning.
Perhaps in the part of the building engineering forum we could have some answers from some engineers and/or gemetra who did some work of road infrastructure?

 

[meccanicamg]

I am understanding that a curve on the left has the lower right side of the left corner center part. but this thing loses adherence.

 

[meccanicamg]

who does the state roads ss with limits 90km/h has never noticed that accidents are always in the same places, in curve, with wet and curved stees have the wrong slope? If the curve tended to have low slope towards the curve center, as in parabolic, it would not happen that the machines are shot radial outwards. Don't you think?

 

[ROAR]

who does the state roads ss with limits 90km/h has never noticed that accidents are always in the same places, in curve, with wet and curved stees have the wrong slope? If the curve tended to have low slope towards the curve center, as in parabolic, it would not happen that the machines are shot radial outwards. Don't you think?

The road is already rolling, and you want to make it a low slope at the corner center, accidents happen because asphalt does not absorb water and cars go straight

 

[Fulvio Romano]

because the Italian roads have curves with the highest curved interior and the lower curved exterior that facilitates the radial exit on the wet while the railway tracks have the opposite slope. It seems to me that in the autodrome they are like in the railroad or wrong?
I'm afraid the pineapple has made something wrong in the construction of the roads.
How do you think?

with "the Italian roads" you mean "all the Italian roads", or just a part? and in this second case, what are you talking about?
I can make you a rather full list in which the internal roads are "besided" for issues of drenability, and the external ones have the "right" slope.

I would also say that 9.4% of the accidents are due to the exit of the vehicle, and of these only a part due to the water... So...
http://www.istat.it/it/files/2013/11/incidenti_stradali_anno-2012_def.pdf

 

[meccanicamg]

not all but almost all are with the wrong slope and they unfailingly throw out the vehicles. those inside the brianza there is that they are made wheat field style...but the roads from 70/90/110 km/h should be right.

 

[rinato]

Well, then I'll put a couple of theories on it.
- have found that in the curve the rain water better drains if the asphalt slope is in favor of centrifugal force;
- Asphalting, bad, do not adapt the speed of descent of the hot material from the operating machine and on the inside side of the curve it settles
more per linear unit, while at the extreme it stretches thinner;
-maybe it is an optical illusion caused by inappropriate references.

I recommend to drive with a masonry bubble under hand and map the situation and turn, pay for use, data to cartography companies to integrate maps with double dangerous curves (ok, here I am joking).