alignment begin station inherited from another alignment

[lorrie.bundy]

Can I inherit the station from one alignment as the begin station for another alignment?

For example. Alignment 1 is 1000 ft long and starts at sta 0+00.

At sta 8+01, Alignment 2 begins and goes off in another direction.

I manually enter 8+01 for begin station Alignment 2. Life is good.

Still in the design stage, and customer needs to modify Alignment 1 to avoid something.

Now Alignment 2 intersects Alignment 1 at sta 8+15, but same N/E coordinates.

I manually enter 8+15 for begin station Alignment 2.

Life is no longer good.

It would be better if Alignment 2 could inherit the begin station based on the new stationing from Alignment 1.

Any suggestions?

[Matt_Haokip]

Hi Lorrie,

I do not think it will be possible, since these alignments are independent entities and they could not be made intelligent to know where one starts and other ends.

Thanks,

[Joe-Bouza]

Instead of two alignments have you considered one and adding Station Equations?

[wfberry]

Joe:

Why have an equation, ending station and beginning are the same.

Bill

[Joe-Bouza]

Hi Bill

I thought if he edits the first portion of the alignment then maintaining/ revising the beginning of part two would be a simpler task, I thought. Maybe not ? These are only thoughts. I never put into practice

[Sinc · Accepted solution]

I typically find that it works far better to have completely independent stationing for each Alignment, to avoid confusion.  for example, if your first Alignment is going from 1+00 to 30+00 (for example), a second Alignment that stubs off of that might use 100+00 to 110+00.  A third might use 200+00 to 250+00.

This approach completly removes any possibility of mixing up stationing during construction, and makes everything much clearer.  And there's no need to change stationing on your stubs should your main line change geometry.

[lorrie.bundy]

I don't know how (or if it is appropriate) to make 2 diverging alignments one single alignment.

[lorrie.bundy]

Thank you Sinc. I will use your protocol and move on.

Thank you all for the suggestions.