由Autodesk公司为Civil 3D软件用户推出的“Grading Optimization”分级优化扩展模块有助于根据既定设计标准对土地区域进行等级。该扩展使用优化算法来建立表面平滑度，同时遵守用户建立的约束条件，例如平整和排水元素。
对于土木设计师来说，分级可能是一个耗时、细致的过程。要评估单个评分解决方案，可能需要花费一两天的时间来创建评分模型、编辑评分模型，然后最终确定评分模型。通过 Civil 3D 的Grading Optimization分级优化，可以节省时间和精力来识别 Civil 3D 图形中的分级对象（建筑地坪、池塘、区域、路缘石），然后运行由一组参数和约束定义的分级分析。可以实时观看 Grading Optimization 如何根据分级限制、排水要求等建立解决方案。
1、Autodesk Grading Optimization for Civil 3D 2022：
https://dds.autodesk.com/NetSWDLD/2022/C3DGO/DCDB85DB-5DFF-3C76-A88B-F46B7DE6F7BB/SFX/GradingOptimization_2022_FCS_Win_64bit_dlm.sfx.exe
2、Autodesk Grading Optimization for Civil 3D 2022.1：
https://dds.autodesk.com/NetSWDLD/2022/C3DGO/11BA29DC-EDB7-3BD9-8AE4-05BE034EA56D/SFX//GradingOptimization_2022_1_Win_64bit_dlm.sfx.exe
3、Autodesk Grading Optimization for Civil 3D 2022.2：
http://dds.autodesk.com/NetSWDLD/2022/C3DGO/BD9C1835-2154-3227-A9F0-4A6833341191/SFX/GradingOptimization_2022_2_R2_WIN_64BIT_dlm.sfx.exe
4、Autodesk Grading Optimization for Civil 3D 2022.2.1：
http://up.autodesk.com/2022/C3DGO/DFB15BED-95A7-3C07-A6DE-9D24529099FA/GradingOptimization_2022_2_1.exe
5、Autodesk Grading Optimization for Civil 3D 2022.3：
https://dds.autodesk.com/NetSWDLD/2022/C3DGO/EB1395FE-EB56-3C81-A5F7-8F5F3B763C3B/SFX/GradingOptimization_2022_3_Win_64bit_dlm.sfx.exe
6、Autodesk Grading Optimization for Civil 3D 2022.3.1：
https://dds.autodesk.com/NetSWDLD/ODIS/prd/2022/C3DGO/88116714-7AB3-3A53-A7F0-61994557635C/SFX/GradingOptimization_2022_3_1_Win_64bit_dlm_001_002.exe
https://dds.autodesk.com/NetSWDLD/ODIS/prd/2022/C3DGO/88116714-7AB3-3A53-A7F0-61994557635C/SFX/GradingOptimization_2022_3_1_Win_64bit_dlm_002_002.7z
7、Autodesk Grading Optimization for Civil 3D 2022.3.2：
https://dds.autodesk.com/NetSWDLD/ODIS/prd/2022/C3DGO/AED36C27-2910-3F06-BC4D-84F89C648379/SFX/GradingOptimization_2022_3_2_win_db.sfx.exe
8、Autodesk Grading Optimization for Civil 3D 2023：
https://dds.autodesk.com/NetSWDLD/2023/C3DGO/F098F6A8-0E61-3381-BD21-35667BC2293F/SFX/GradingOptimization_2023_0_Win_64bit_dlm.sfx.exe
9、Autodesk Grading Optimization for Civil 3D 2023.0.1：
https://up.autodesk.com/2023/C3DGO/B4A6C41C-68E4-3535-8580-EC5826EEE5A6/GradingOptimization_2023_0_1.exe
10、Autodesk Grading Optimization for Civil 3D 2023.1：
https://dds.autodesk.com/NetSWDLD/2023/C3DGO/F5638F9D-D67F-3CA1-8D7A-AE4AD3EB2101/SFX/GradingOptimization_2023_1_Win_64bit_dlm.sfx.exe
11、Autodesk Grading Optimization for Civil 3D 2023.1.1：
https://up1.autodesk.com/2023/C3DGO/B7C5BD69-3F94-3DAC-B834-C3F6CB4210DA/GradingOptimization_2023_1_1.exe
12、Autodesk Grading Optimization for Civil 3D 2023.1.2：
https://dds.autodesk.com/NetSWDLD/ODIS/prd/2023/C3DGO/4F828904-0F0E-3E5E-B3FF-3587C33C5BC0/SFX/GradingOptimization_2023_1_2_Win_64bit_dlm_001_002.exe
https://dds.autodesk.com/NetSWDLD/ODIS/prd/2023/C3DGO/4F828904-0F0E-3E5E-B3FF-3587C33C5BC0/SFX/GradingOptimization_2023_1_2_Win_64bit_dlm_002_002.7z
13、Autodesk Grading Optimization for Civil 3D 2023.1.3：
https://dds.autodesk.com/NetSWDLD/ODIS/prd/2023/C3DGO/94085AEA-2A85-3E1D-B394-CE8839254BF0/SFX/GradingOptimization_2023_1_3_win_db.sfx.exe
14、Autodesk Grading Optimization for Civil 3D 2023.1.4：
https://dds.autodesk.com/NetSWDLD/ODIS/prd/2023/C3DGO/69F20BBF-7297-3201-BFB5-3AE513E6823A/SFX/C3DGO_2023_NA_win_db.sfx.exe
15、Autodesk Grading Optimization for Civil 3D 2024：
https://up.autodesk.com/2024/C3DGO/89451D1A-3985-3807-9EA4-C74EE7ADE76C/GradingOptimization_2024.exe
16、Autodesk Grading Optimization for Civil 3D 2024.0.1：
https://up1.autodesk.com/NetSWCOM/prd/C3DGO/2DB96B4F-1A7E-3FBF-AF97-E6CF598BA2C6/GradingOptimization_2024.exe
17、Autodesk Grading Optimization for Civil 3D 2024.0.2：
https://up1.autodesk.com/NetSWCOM/prd/2024/C3DGO/E5DF6733-FC48-3A0B-848F-758D2219FE67/GradingOptimization_2024.exe
18、Autodesk Grading Optimization for Civil 3D 2024.0.3：
https://up1.autodesk.com/prd/2024/C3DGO/1D87987C-DC81-3F02-AEC4-CDB3EF07074E/GradingOptimization_2024.exe
19、Autodesk Grading Optimization for Civil 3D 2025：
https://up1.autodesk.com/NetSWCOM/prd/C3DGO/13A59745-605C-3D8A-9606-614E526F2BE2/GradingOptimization_2025.exe
20、Autodesk Grading Optimization for Civil 3D 2025.0.1：
https://up1.autodesk.com/NetSWCOM/prd/2025/C3DGO/3A539ACF-ADF5-3ADE-A468-3012B4ABD3FE/GradingOptimization_2025.exe
21、Autodesk Grading Optimization for Civil 3D 2026：
https://up1.autodesk.com/prd/2026/C3DGO/B6CD0D1F-42A8-3596-8F7F-0F704EAD11B7//GradingOptimization_2026.exe
