> For the complete documentation index, see [llms.txt](https://docs.openbrim.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.openbrim.org/examples/concrete-bridge-examples/example-concrete-u-girder-bridge/superstructure-attachments-ex1-cug/roadway-ex1-cug.md).

# Roadway

This section defines the roadway geometry used for live load influence coefficient calculations.

{% hint style="info" %}
**Navigation:** Superstructure Attachments > Roadway

For detailed parameter explanations, see the [Roadway Reference](https://docs.openbrim.org/templates/concrete-u-girder-bridge-workflow/superstructure-attachments-cug/roadway-cug).
{% endhint %}

## Steps

### Step 1: Navigate to Roadway

Navigate to **Superstructure Attachments > Roadway** in the tree view.

![Roadway navigation](https://openbrim.atlassian.net/wiki/download/attachments/2258927673/image-20230831-072309.png?api=v2)

### Step 2: Assign Bridge

Click the **three-dots icon** on the **Bridge** cell and set **Bridge1**.

### Step 3: Define Roadway Dimensions

Click the **three-dots icon** on **Roadway Dimensions** and click **Edit**.

![Edit roadway dimensions](https://openbrim.atlassian.net/wiki/download/attachments/2258927673/image-20230831-072432.png?api=v2)

### Step 4: Enter Dimension Data

Enter the roadway dimension parameters:

![Roadway dimension parameters](https://openbrim.atlassian.net/wiki/download/attachments/2258927673/image-20230831-072639.png?api=v2)

<details>

<summary><strong>Quick Tip:</strong> Roadway Dimensions</summary>

![Roadway reference](https://openbrim.atlassian.net/wiki/download/attachments/2258927673/image-20230221-133420.png?api=v2)

![Roadway cross-section](https://openbrim.atlassian.net/wiki/download/attachments/2258927673/image-20230221-133509.png?api=v2)

</details>

### Step 5: Adjust Lane Parameters (Optional)

Navigate to the **Roadway** tab to modify lane dimensions and asphalt thickness for 3D visualization preferences.

![Roadway tab options](https://openbrim.atlassian.net/wiki/download/attachments/2258927673/image-20230831-072823.png?api=v2)

## Verification

{% hint style="success" %}
The completed roadway configuration is shown below.
{% endhint %}

![Completed roadway](https://openbrim.atlassian.net/wiki/download/attachments/2258927673/image-20230831-072929.png?api=v2)


---

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