---
title: Data
nav_order: 4
tags:
    - Guide
    - External
    - User
# exclude-from-main-guides-list
---

## Data

This section explains how to explore pedestrian network data in the OS-CONNECT Data Viewer, including feature types, attributes, and how to view feature details.

_For a list of all guides on the TCAT Wiki, refer to the [Guides List](../../../guides-list/index.md)._{ .guides-list-ref }

---

### Viewing Data

To view pedestrian network features on the map, ensure the **Data** toggle is enabled in the [layer toggles](interface.md#layer-toggles).

{ width="826" }

The Data Viewer displays feature data as colored lines and points on the map. To view detailed attributes for individual features, zoom in to **zoom level 16 or higher**.

!!! tip

    Zoom level is shown in the URL. Refer to [URL Format](interface.md#url-format) for more details.

---

### Hovering Over Features

When you zoom in to **zoom level 16 or higher**, you can hover over (or tap on touch devices) any feature on the map to view a popup containing its attributes.

{ width="826" }

The popup displays the following attributes when available:

| Attribute          | Description                                                     | Example Values               |
| :----------------- | :-------------------------------------------------------------- | :--------------------------- |
| **highway**        | The type of way                                                 | `footway`                    |
| **footway**        | The sub-classification of the footway                           | `sidewalk`, `crossing`       |
| **kerb**           | The type of curb                                                | `lowered`, `flush`, `raised` |
| **barrier**        | The type of barrier                                             | `kerb`                       |
| **incline**        | The slope grade of the feature, expressed as a percentage       | `5%`, `-3%`                  |
| **width**          | The width of the feature in meters                              | `1.5`                        |
| **length**         | The length of the feature in meters                             | `42.3`                       |
| **foot**           | Whether the feature permits pedestrian access                   | `yes`, `no`                  |
| **surface**        | The surface material of the feature                             | `concrete`, `asphalt`        |
| **tactile_paving** | Whether tactile paving (detectable warning surfaces) is present | `yes`, `no`                  |

!!! note

    Not all attributes are present for every feature. The popup only displays attributes that are present in the dataset for that specific feature.

---

### Feature Types

The OS-CONNECT Data Viewer displays eight types of pedestrian network features, each rendered in a distinct color on the map. These features follow the [OpenSidewalks schema](../../../opensidewalks/schema/index.md).

#### Sidewalk

Sidewalks are pedestrian paths that run alongside a road. They are the most common feature type in the dataset and form the backbone of the pedestrian network.

- **Color:** <span style="display: inline-block; width: 16px; height: 16px; background-color: #4cc9f0; vertical-align: middle;"></span> Light blue
- **Identified by:** `highway=footway` + `footway=sidewalk`

#### Crossing (Marked)

Marked crossings are designated pedestrian paths across a road that have visible pavement markings (e.g., painted lines, zebra stripes).

- **Color:** <span style="display: inline-block; width: 16px; height: 16px; background-color: #ffd166; vertical-align: middle;"></span> Yellow
- **Identified by:** `footway=crossing` + `crossing:markings=yes`

#### Crossing (Unmarked)

Unmarked crossings are designated pedestrian paths across a road that do not have visible pavement markings.

- **Color:** <span style="display: inline-block; width: 16px; height: 16px; background-color: #dda15e; vertical-align: middle;"></span> Tan/orange
- **Identified by:** `footway=crossing` + `crossing:markings=no`

#### Footway

Footways are general pedestrian paths that are not categorized as sidewalks or crossings. These may include paths through parks, pedestrian plazas, or other dedicated walking areas.

- **Color:** <span style="display: inline-block; width: 16px; height: 16px; background-color: #ee6c4d; vertical-align: middle;"></span> Red-orange
- **Identified by:** `highway=footway` (without a `footway` sub-classification)

#### Kerb (Lowered)

Lowered kerbs ("curb ramps") are curb transitions where the curb height has been reduced to facilitate access, typically at crossings.

- **Color:** <span style="display: inline-block; width: 16px; height: 16px; background-color: #06d6a0; vertical-align: middle;"></span> Teal
- **Identified by:** `barrier=kerb` + `kerb=lowered`

#### Kerb (Flushed)

Flushed kerbs ("flush curbs") are curb transitions where the curb is level with the road surface, providing a seamless transition between the sidewalk and the roadway.

- **Color:** <span style="display: inline-block; width: 16px; height: 16px; background-color: #006d77; vertical-align: middle;"></span> Dark teal
- **Identified by:** `barrier=kerb` + `kerb=flush`

#### Kerb (Raised)

Raised kerbs are standard curbs that maintain their full height, which may present a barrier to wheelchair users.

- **Color:** <span style="display: inline-block; width: 16px; height: 16px; background-color: #8cb369; vertical-align: middle;"></span> Green
- **Identified by:** `barrier=kerb` + `kerb=raised`

#### Traffic Island

Traffic islands are raised or protected areas within a roadway that provide a refuge for pedestrians crossing wide or multi-lane roads.

- **Color:** <span style="display: inline-block; width: 16px; height: 16px; background-color: #8093f1; vertical-align: middle;"></span> Purple
- **Identified by:** `highway=footway` + `footway=traffic_island`

---

### Next Steps

- Notice an issue with the data? Learn how to [report it](feedback.md)!