# RedRegion1

The position of the second red light.

This parameter is used only for traffic lights at level crossings.

Specify the region as a comma-separated list of values in the order: `left,top,width,height`, followed by the units that you want to use.

- `left` is the distance from the left of the frame to the left edge of the region.
- `top` is the distance from the top of the frame to the top edge of the region.
- `width` is the width of the region.
- `height` is the height of the region.

You can choose the following units:

- `percent` or `%` to use percentages of the image or video dimensions (`left` and `width` as percentages of the width, `top` and `height` as percentages of the height).
- `pixels` or `px` to use numbers of pixels.

Type: | Custom
Default: |
Required: | No
Configuration Section: | TaskName
Example: | `RedRegion1=200,500,20,20 pixels`
See Also: |

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