The Civil 3D Split Region tool can be greatly improved with some options and enhancements. These improvements would be particularly useful for basic to advanced Civil 3D users in linear and non-linear corridors, Multiple Baseline Corridors, and detailed site design and/or roadway corridors. Goal: Reduce clicks and inputs in more complex Baselines with multiple Regions Increase the consistency capability of Region management within corridors. This could be a new separate Chop Region tool. The tool improvements are submitted in two ideas. I believe this first improvement set is easier to implement and the second more nuanced and demanding. This suggestion is not a suggested tweak to the Copy Region command which does something different and yet might benefit from similar options. Split Region Tool Improvement Part One Works in single Baseline context which is consistent with current command behavior, function, and limitations. Add Offset, Increment, Divide, and Design Speed Options driven by prompt A default Enter gets you classic Split Region tool behavior Offset option gets you Center (default), Start and End options. Creates a specified sized Station Range Region in a Baseline from one Baseline Station pick. Allows you to create two consistent sized Region splits at once. Offset option of the command repeats with the option to again change the meaning of the Baseline station pick. Potential Offset that also has increment or divide has some uses like sidewalk planters, driveways etc. Offset use cases include intersections, bridges, overpasses, driveways, drainage structures, etc. Increment and Divide subdivide the Baseline to by classic AutoCAD methods to improve corridor management and build performance. 500 or 1000 unit ranges or total Baseline length divided by 3 These options of the command do not repeat and/or prompt for another Baseline Use case: Turn off Regions and improve corridor build performance. If included as options in Offset, see above. Design Speed option subdivides the Baseline by current Alignment Design Speed Station assignments If no Design Speed on current Baseline, option to select another alignment from the drawing or a list. Regions are constructed from the Baseline Start or a manually selected station on the current Baseline. A Reset option could remove all current Baseline Regions and recreate new Design Speed Regions OR more simply - Existing Regions must be manually deleted or merged beforehand and cannot be updated. Use case: obvious relationship between Design Speed and Assembly assignment for both roadway Baselines and side condition Baselines. (e,g, classic on and off ramps and lanes) Corridor Properties Parameters Tab Improvements These options should also be included in the Add Region section of Right click menu in a Baseline in the Corridor Properties Parameters tab. Menu pick enters the improved Split Region tool and allows you to change options. Enter out returns you back to the Parameters tab. Use case: saves you a lot of clicks, manual inputs, and interface hops if you have a Baseline Region design plan
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