U turn Model

[Jameelfalah]

Dear 

Dose any one can tell me how i can model the attached corridor. actually I have problem with how to present the rotation

regards 

[tcorey]

You can do this using muliple baselines.

Make your centerline a baseline alignment. In the assy for this baseline, insert a LinkSlopeandWidth at centerline. Be sure to set Omit Link to Yes in the properties of this subassy. Set the default width to 1 foot (or meter) so you can attach your pavement to the correct point. Then go into the LinkWidthandSlope subassy properties and set it to 0 width. In the corridor properties, the target point of the LinkWidthandSlope subassy will target the median curb, but using 0 as the default width will ensure that the pavement starts at centerline where there is no median curb.

Make an alignment from the median (or two if you want them to run parallel and meet in the middle.) for each of the median areas. Add that as a baseline to the corridor. Assign an assembly that represents the median curb.

The (bus turnout?) area on the north side of the travelway can be modeled in a similar fashion.

Good luck!

Tim

[Jameelfalah]

Please can you send it to me as autocad civil 3d file

[tcorey]

If you'll send me your base drawing with the alignment and linework, either by posting here or by sending me an email tcorey@shasta.com, I will make a basic corridor for you to look at. When that will be complete depends on my workload today. I have to take care of my clients' support requests first.