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Stupid Question about super elevation

19 REPLIES 19
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Message 1 of 20
Joe-Bouza
2279 Views, 19 Replies

Stupid Question about super elevation

I know I can use the outsideLane super and apply the calculation the to attain SE in my model. If I wanted to have a shoulder roll over opposing SE , that is if Full super of the lanes is 4%  I'd like the shoulder to transition to -4%. How do I construct the assembly to do this? Do I have to manually profile the transition to target, or will a sub read the se calc for the shoulder and develop automatically?

Thank you

Joseph D. Bouza, P.E. (one of 'THOSE' People)

HP Z210 Workstation
Intel Xeon CPU E31240 @ 3.30 Hz
12 GB Ram


Note: Its all Resistentialism, so keep calm and carry on

64 Bit Win10 OS
19 REPLIES 19
Message 2 of 20
sboon
in reply to: Joe-Bouza

That was answered during an AU class this morning, but you missed it. 🙂

 

Steve
Please use the Accept as Solution or Kudo buttons when appropriate

 

Steve
Expert Elite Alumnus
Message 3 of 20
Joe-Bouza
in reply to: sboon

Ba doom bah!
Your'e in the right town 🙂 Say hello for me
Thank you

Joseph D. Bouza, P.E. (one of 'THOSE' People)

HP Z210 Workstation
Intel Xeon CPU E31240 @ 3.30 Hz
12 GB Ram


Note: Its all Resistentialism, so keep calm and carry on

64 Bit Win10 OS
Message 4 of 20
Cadguru42
in reply to: Joe-Bouza

I think if you look at the superelevation table you can change the specifics such as lane and shoulder slopes. I did that on my last project and it seemed to work pretty good.
C3D 2022-2024
Windows 10 Pro
32GB RAM
Message 5 of 20
Joe-Bouza
in reply to: Cadguru42

Thank you, but back to the first question: How is the assembly constructed? can I add another lane segment to take the shoulder break? I not sure if I can use a shoulder sub because I am building a curbed section. And I don't see shoulder parameters din the Lane outside super
Thank you

Joseph D. Bouza, P.E. (one of 'THOSE' People)

HP Z210 Workstation
Intel Xeon CPU E31240 @ 3.30 Hz
12 GB Ram


Note: Its all Resistentialism, so keep calm and carry on

64 Bit Win10 OS
Message 6 of 20
fcernst
in reply to: Joe-Bouza

Like this?

 

Capture.JPG



Fred Ernst, PE
C3D 2024
Ernst Engineering
www.ernstengineering.com
Message 7 of 20
Joe-Bouza
in reply to: fcernst

rollover.png

Thank you

Joseph D. Bouza, P.E. (one of 'THOSE' People)

HP Z210 Workstation
Intel Xeon CPU E31240 @ 3.30 Hz
12 GB Ram


Note: Its all Resistentialism, so keep calm and carry on

64 Bit Win10 OS
Message 8 of 20
fcernst
in reply to: Joe-Bouza

I'm not sure what you are trying to do now. Do you have a typical section?



Fred Ernst, PE
C3D 2024
Ernst Engineering
www.ernstengineering.com
Message 9 of 20
Joe-Bouza
in reply to: Joe-Bouza

Pardon the caveman drafting. When I get to super I wanted to break the shoulder the opposite way. I didn't know how to set it up. I used an outside lane super segment that gets is cross slope fro m the inside that get it from the super calc. For the region where I needed to rollover, I added a layout profile to target and got what I want, for now. I feel like I worked too hard and there must be a more elegant way to do it.

 

rolover2.png

Thank you

Joseph D. Bouza, P.E. (one of 'THOSE' People)

HP Z210 Workstation
Intel Xeon CPU E31240 @ 3.30 Hz
12 GB Ram


Note: Its all Resistentialism, so keep calm and carry on

64 Bit Win10 OS
Message 10 of 20
fcernst
in reply to: Joe-Bouza

I feel like I worked too hard and there must be a more elegant way to do it.

 


Use the Superelevation View, it's fast.


Capture.JPG



Fred Ernst, PE
C3D 2024
Ernst Engineering
www.ernstengineering.com
Message 11 of 20
Joe-Bouza
in reply to: fcernst

I have all that. I'm wondering how/if the rollover can be done automatically and how is the assembly constructed to do it?
Thank you

Joseph D. Bouza, P.E. (one of 'THOSE' People)

HP Z210 Workstation
Intel Xeon CPU E31240 @ 3.30 Hz
12 GB Ram


Note: Its all Resistentialism, so keep calm and carry on

64 Bit Win10 OS
Message 12 of 20
santek1
in reply to: Joe-Bouza

I don't have the software in front of me, but it's part of the superelevation calculation wizard.  When you run the tool there are options for shoulder slopes, including match lane or apply rollover etc.

 

Steve

Katinka Sante
Community Customer Advocacy Sr. Manager


Message 13 of 20
fcernst
in reply to: Joe-Bouza

Have your Left Shoulder use Right Outside Shoulder.

 

Capture.JPG



Fred Ernst, PE
C3D 2024
Ernst Engineering
www.ernstengineering.com
Message 14 of 20
sboon
in reply to: santek1

For those who like pictures.

 

Clipboard01.png

 

Once the superelevation is calculated you can apply the appropriate shoulder slopes within your assembly.

 

Steve
Please use the Accept as Solution or Kudo buttons when appropriate

Steve
Expert Elite Alumnus
Message 15 of 20
Joe-Bouza
in reply to: santek1

"I know I can use the outsideLane super and apply the calculation the to attain SE in my model. If I wanted to have a shoulder roll over opposing SE , that is if Full super of the lanes is 4%  I'd like the shoulder to transition to -4%. How do I construct the assembly to do this? Do I have to manually profile the transition to target, or will a sub read the se calc for the shoulder and develop automatically?"

 

 

I see many viewer see you as spot on and you probably are, by My writing skills may have obfuscated the intent of my post. I know how to calc it - Just can't figure out how to construct "it" (as in the assembly make up with a curb and sidewalk) to be applied.

 

 

Thank you

Joseph D. Bouza, P.E. (one of 'THOSE' People)

HP Z210 Workstation
Intel Xeon CPU E31240 @ 3.30 Hz
12 GB Ram


Note: Its all Resistentialism, so keep calm and carry on

64 Bit Win10 OS
Message 16 of 20
Cadguru42
in reply to: Joe-Bouza


@Joe-Bouza wrote:

"I know I can use the outsideLane super and apply the calculation the to attain SE in my model. If I wanted to have a shoulder roll over opposing SE , that is if Full super of the lanes is 4%  I'd like the shoulder to transition to -4%. How do I construct the assembly to do this? Do I have to manually profile the transition to target, or will a sub read the se calc for the shoulder and develop automatically?"

 

 

I see many viewer see you as spot on and you probably are, by My writing skills may have obfuscated the intent of my post. I know how to calc it - Just can't figure out how to construct "it" (as in the assembly make up with a curb and sidewalk) to be applied.

 

 


Just make your assembly the same way you drew it. As long as you have a lane subassembly and a shoulder assembly you should be able to use the tabular view to make the transitions the way you want them. The curbs, sidewalk, and daylight will attach to the shoulder and should build just like your beautiful napkin assembly. Below is an assembly I did that has shoulders and lanes in a superelevated curve.

 

assembly_with_shoulder.png

 

If you know where your superelevation critical points are, such as level crown, etc., it's pretty easy to use the tabular view to tell the software what you want the shoulder and lane cross slopes to be at what stations.

 

I attached one that I just did a couple of months ago. This one was unique in that we are widening an intersection and right after the intersection we have to drop a lane & tie in to an existing superelevated road to make it match. 

C3D 2022-2024
Windows 10 Pro
32GB RAM
Message 17 of 20
Joe-Bouza
in reply to: Cadguru42

I obviously have a very dense head. Its my understanding the lane subs read the super and the Shoulder subs read the rollover, correct?

 

So how do I add curb and sidewalk to a sholder sub? It looks wrong in layout mode?

 

shoulderassembly.png

Thank you

Joseph D. Bouza, P.E. (one of 'THOSE' People)

HP Z210 Workstation
Intel Xeon CPU E31240 @ 3.30 Hz
12 GB Ram


Note: Its all Resistentialism, so keep calm and carry on

64 Bit Win10 OS
Message 18 of 20
fcernst
in reply to: Joe-Bouza

Capture.JPG



Fred Ernst, PE
C3D 2024
Ernst Engineering
www.ernstengineering.com
Message 19 of 20
Joe-Bouza
in reply to: fcernst

I did say I was dense. Thats the big crayon explaination I needed.
Thank you Fred
Thank you

Joseph D. Bouza, P.E. (one of 'THOSE' People)

HP Z210 Workstation
Intel Xeon CPU E31240 @ 3.30 Hz
12 GB Ram


Note: Its all Resistentialism, so keep calm and carry on

64 Bit Win10 OS
Message 20 of 20
fcernst
in reply to: sboon

Once the superelevation is calculated you can apply the appropriate shoulder slopes within your assembly.

 


In Joe's special case he wants to have his shoulder transition from a normal -2% up to a max -4%...



Fred Ernst, PE
C3D 2024
Ernst Engineering
www.ernstengineering.com

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