Issue 47

April 20, 2006

1) Secondary Layers have the ability to apply an “intercept” or not. This allows for various methods of constructing the secondary Layer, and is dependent on the users plans for running the Roadway Modeler as well as the Express Modeler. One solid rule is that the Express Modeler only models what is precisely defined in the Backbone of the secondary Layer and will not apply any intercepts or cut/fill conditions. The Roadway Modeler uses a toggle setting on the Advanced tab to control how the secondary Layers will respond and construct at the extremities. Be aware of the differences because if the “intercept” piece is in the Backbone Zone versus the Cut/Fill Zone feature creation can vary. (pg. 560)