Suggestions For Curb Template

RE: Suggestions For Curb Template

caddcop — Tue, 21 Jan 2020 14:45:19 GMT

This thread was started in 2010. You might do better starting a new thread.

RE: Suggestions For Curb Template

NDhakal — Mon, 20 Jan 2020 14:37:50 GMT

I'm looking to do the same thing but I want the gutter slope to match the superelevated slope when on high side and a constant 8% slope when on low side. Is there a way to achieve this with Rollover locks?

Re: Suggestions For Curb Template

Tim Clark — Thu, 07 Jan 2010 22:10:26 GMT

That section makes more sense, doesn't it? Definitely go with the rollover lock approach.

You can still use CDR's for switching between curb types - set the curb types based on the horizontal offset to a null point, and then use parametric constraints to change that offset as you go along the road:

For example: Null point offset = 5: barrier curb, 10: mountable, 15: standard, etc.

It's a little cumbersome but saves you from needing multiple templates.

Re: Suggestions For Curb Template

jcallicott — Thu, 07 Jan 2010 19:41:05 GMT

Hmmm.... I have never used the shoulder rollover locks before. However, this sounds like a cleaner solution than my question about CDRs and parent/child ECs.

The gutter and curb are actually all one unit - so only the gutter foreslope will need to have the lock applied. The gutter backslope is the curb itself, and it's always constant - it changes depending on the type of curb used.

I think I will go the shoulder rollover lock route.

Thanks!

Re: Suggestions For Curb Template

Tim Clark — Wed, 06 Jan 2010 23:15:16 GMT

I gave this a shot using sequential shoulder rollover locks rather than template CDR's and it seemed to work well. I'm assuming the gutter is v-shaped and has a foreslope and a backslope. The bottom of the curb is then placed at the top of the gutter backslope.

First, run the superelevation wizard to apply super to just your travel lanes

Next, apply a shoulder rollover lock to the gutter foreslope - high side difference is 0%, low side difference is infinity

Next, apply a shoulder rollover lock to the gutter backslope - this time it's reversed. High side difference is infinity and low side difference is 0%.

Once these rollover locks are in place, then you just have to worry about switching curb types and you seem to have a handle on that.