> For the complete documentation index, see [llms.txt](https://help.besmart.software/be.smart-site-management/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.besmart.software/be.smart-site-management/en-site-productivity/civil-3d-plug-in/what-is-site-productivity-civil-3d-add-on.md).

# What is Site Productivity Civil 3D add-on

Site Productivity Civil 3D add-on enables users to define zone and grid features for a site. Zones are used to define areas in which trucks are usually loaded or unloaded. Zones can also be used to trace where material is being transported to. Grids are being used to report machine movements for a 

In Site Productivity add-on we have following feature class definitions: 

* Zone,
* Machine
* Grid

**Feature** is an entity that has both geometry and attribute data. It is a representation of feature class. The attribute data can be just a single ID identifier or it can encompass all kinds of other data about the feature. Attribute data is also referred to as properties. 

Features can represent various types of geographic entities, such as points, lines, polygons, or even more complex objects like networks or surfaces.

<figure><img src="/files/jG0Q6vzoKo1NTdn7hpte" alt=""><figcaption><p>Site Productivity for Civil 3D</p></figcaption></figure>

<figure><img src="/files/1JgXxEnjCOutD4Gya5ue" alt="" width="253"><figcaption><p>Site Productivity ribbon tab options</p></figcaption></figure>


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