Creating Flared Driveways

Creating Flared Driveways

LarryS23
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Message 1 of 14

Creating Flared Driveways

LarryS23
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I am used to creating driveways and corridors using a curb return with a connected alignment profile. The problem is that I think this only works with driveways with a circular fillet. I need help creating a corridor with a flanged fillet. See the picture.

dvwy flangeddvwy flanged

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Message 2 of 14

jmayo-EE
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I typically use a conditional hor offset target at the curb cuts and add a section 1.5-2' on each side to get the corridor to model them mostly automatic.

Time 14:12 begins driveways in this video https://www.youtube.com/watch?v=ysCPUuuaVp4 

 

Bartels gold here, https://www.youtube.com/watch?v=fDjeI69UX94

 

and more here with the FLDOT tools, https://www.youtube.com/watch?v=KJBhl29xysE  

John Mayo

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Message 3 of 14

jae.kwon
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Probably the simplest method is a couple of sets of target horizontal target conditions and a generic width and slope links.

 

Draw a line at the end of the 2% max area, let's call this A

Draw a line at where you want to tie into the existing, let's call this B

 

Main assembly

  - horizontal target conditional (offset target A)

    - link width and slope (offset target A)

      - horizontal target conditional (offset target B)

        - link slope to surface (surface target existing OR elevation target B)

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Message 4 of 14

Joe-Bouza
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"Bartels gold"

 

such a true statement

Joe Bouza
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Message 5 of 14

LarryS23
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Are you using a separate assembly for the driveway, or are you building off of the main road assembly?

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Message 6 of 14

Joe-Bouza
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Hi Larry 

I'm not dissing @jae.kwon  suggestion I just understand the first video in @jmayo-EE  post.

 

Did watch that one? 

Joe Bouza
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Message 7 of 14

LarryS23
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Yes I watched that one and it makes sense. Part of the issue is that I think I’m going to have to create a bunch of conditional statements if I were to but the main road all on a few regions

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Message 8 of 14

LarryS23
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Oh, so what should my baseline be in this case? Normally I set my baseline to be the connected alignment but I do not have one here.

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Message 9 of 14

Joe-Bouza
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One of the beauties on the Conditional sub is that it eliminates the need for multiple regions, but I would need to understand what your regions are for.

 

You very well may multile driveways. There is no need to add a baseline. you would modify the main assembly to have the CS on both side one fond one not found depending on how you want to search but classically to dw would be found and the full height not found. you go further and add a third sprig with nothing to carry across intersection.

 

I usually offset the center line to left and right Layers, break the pline between driveways and use by layer in the target box

Joe Bouza
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Message 10 of 14

LarryS23
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Currently have a region for typical section which includes curb, sidewalk, and ROW. Then I have another region for a typical intersection with no curb. Then the driveways are on a separate corridor. I also, have regions for typical section no curb to the left or right, respectively. 

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Message 11 of 14

LarryS23
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Would you happen to know why this might be happening?

dvwy e9 corridor.PNG

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Message 12 of 14

jae.kwon
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Check your baseline profile, check your target surface, and check your daylight grades (too flat?)

 

Might have to manually grade those daylights - sharp angles tend to create some unresolvable bowties anyway, in addition to whatever elevation/slope issue that's going on there.

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Message 13 of 14

LarryS23
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Fixed it. It was the wrong surface for the FLs

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Message 14 of 14

LarryS23
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Now I need to figure out how to target the inside sidewalk (blue) and the outside portion of sidewalk (magenta). Do I need to use subassembly composer? I am not too familiar with that.

 

DVWY C9 WORKING.PNG

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