> ## Documentation Index
> Fetch the complete documentation index at: https://docs.arterial.us/llms.txt
> Use this file to discover all available pages before exploring further.

# Heat Map

> Read the Hazard Heat Map, filters, and layers in plain language.

The page title is **Hazard Heat Map**.

## What the heat map is for

The heat map shows the same kinds of road issues as the pin map, but draws them as a colored density surface. **Hotter** or more intense colors usually mean more issues (or higher combined emphasis) in that area, depending on how your data is distributed. Use it to spot neighborhoods or corridors that deserve attention before you drill into individual pins on the [Pin Map](/maps/pin-map) or rows in the [Hazard List](/records/list).

## Controls

* **Filters**: opens a **Filters** card. Narrow by type, status, and priority range. The heat layer respects those choices.
* **Refresh**: reloads data with the current filters and organization context.
* **Layers**: opens the same style of **Layers** panel as the pin map. Turn reference layers on or off, adjust opacity where available, and reorder layers when drag handles are shown.

The on-map toolbar provides the same quick navigation aids as the [Pin Map](/maps/pin-map): search, home extent reset, basemap switcher (streets, light, dark, satellite, terrain, traffic), fullscreen, and a scale bar.

## Layers panel behavior

See [Pin Map](/maps/pin-map) for a full description of layer visibility, opacity, and ordering. Heat Map and Pin Map share the same layer tooling.

## Selecting features

You can still inspect individual hazards when the product allows selection on the heat view. Selected hazards or GIS features are highlighted on the map, and a popup or detail drawer opens with attributes. Use **View details** in the popup to open the full feature drawer. Behavior matches the [Pin Map](/maps/pin-map) page.

## If the map looks empty or sparse

Try zooming to an area where you expect data, loosen filters, or click **Refresh**. If the problem persists, see [Troubleshooting](/support/troubleshooting).

***

## Related topics

* [Pin Map](/maps/pin-map)
* [Coverage Map](/maps/coverage-map)