## Track Monitoring

| Menu path |
|-----------|
| {{ menu }} → {{ menu_routes }} → Select Route → **Activate** |

ECDIS monitors navigation along the route.

**Track monitoring is performed only when a route is activated.**

### Route activation

1. **Go to "Routes"**

![Route list for activation](images/route-list-activation.png)<br>

2. **Select the route and press "Activate"**

When activating a route, ECDIS checks the route status. If the route is safe, activation will be performed; otherwise, a notification will be displayed. The route can be activated forcibly.

![Route activation dialog](images/activation-dialog.png)

```{important}
**Before activating the route, check the current {doc}`draft and water level </sections/vessel-settings/vessel-dimensions/index>` settings.** In the "Route check settings", the area groups to be checked during track monitoring must be selected.
```

### What happens on activation

**On activation:**

- the route is displayed on the map, and the first waypoint is centered on the screen
- the Route monitoring panel becomes available in the right panel
- the {doc}`off-scale indicator </sections/graphical-user-interface/off-scale-indicators/index>` of the vessel's position on the route becomes available
- a **Voyage time diagram** appears at the bottom of the chart window
- when the vessel exceeds the XTD boundaries, ECDIS will generate warnings
- ECDIS will generate warnings about approaching turn points visually on the {doc}`off-scale indicator </sections/graphical-user-interface/off-scale-indicators/index>` and with an audible signal

### Alarms and warnings

When navigating along an activated route, ECDIS generates additional **alarms, warnings, and cautions** related to the route:

- when **any point of the vessel's outline exceeds** the maximum cross-track deviation from the planned track set by the navigator
- warnings/cautions about predicted **XTD exceedance**
- route monitoring criteria are configurable:

![Monitoring criteria settings](images/Route_7.png)<br>

- **Time to turn alert** — warning time before an upcoming turn

```{important}
**When heading data is unavailable, XTD exceedance monitoring is performed relative to the track vector.**
```

### Route monitoring panel

![Route monitoring panel](images/Route_8.png)

| № | Element | Description |
|---|---------|-------------|
| **1** | Active route name | Name of the route being used for track monitoring |
| **2** | Route status | {doc}`Check status </sections/routes/route-verification/index>` indicator |
| **3** | WP*** | Number or name of the current waypoint |
| **4** | Bearing to WP | Bearing to the next waypoint |
| **5** | Distance to WOL | Distance to the wheel-over point (calculated taking into account the turning radius) |
| **6** | Time to WOL | Time to the wheel-over point |
| **7** | Leg bearing | Direction of the planned track to the waypoint of the current route leg |
| **8** | ETA | Estimated time of arrival at the final waypoint of the route |
| **9** | Calculated date | Estimated date of arrival at the final point of the route |
| **10** | WP*** | Number or name of the next waypoint |
| **11** | Bearing/Dist. | Direction and length of the next route leg |
| **12** | --- | Turn diagram at the next waypoint |
| **13** | Passed | Distance traveled out of the total length |
| **13** | Rem. time | Voyage time — time since the start of track monitoring |

```{hint}
When activating a route, ECDIS automatically selects the nearest WP and adopts it as the starting point of the route. The bearing to the automatically selected WP will be displayed in the window.

If necessary, the navigator can change the waypoint to follow.
```

### Voyage time diagram

When a route is activated, a voyage time diagram is generated.

A single left-click (tap) expands the diagram. The diagram includes:

**Collapsed diagram view:**

![Voyage time diagram (collapsed view)](images/time-diagram-collapsed.png)

**Expanded diagram view:**

![Voyage time diagram (expanded view)](images/time-diagram-expanded.png)

| № | Element | Description |
|---|---------|-------------|
| **1** | WP name | Waypoint name |
| **2** | Minimum depth | Minimum depth on the route leg, taken from the ENC, taking into account the current water level value entered manually |
| **3** | Planned speed | On the route leg |
| **4** | Course | On the route leg |
| **5** | Arrival time | At the WP |
| **6** | Stay time | At the WP |
| **7** | Departure time | From the WP |
| **8** | Distance | Between WPs |

#### Working with the diagram

**Zooming:**
Short route sections may overlap. To view hidden information in the diagram, change the diagram scale:

- **Zoom in:** hover the cursor over the hidden route section and scroll the mouse wheel
- **Mouse wheel scrolling** performs both zooming in and out of the diagram
- **On a touch screen:** zooming in and out is performed by spreading/pinching two fingers on the segment of interest

![Diagram zooming](images/diagram-zoom.png)

**Viewing point information:**
In the collapsed view, information for any route point can be viewed by clicking on the desired point.

![Waypoint information](images/waypoint-info.png)

| № | Element | Description |
|---|---------|-------------|
| **1** | WP name | Waypoint name |
| **2** | Planned speed | On the route leg |
| **3** | Minimum depth | On the route leg, taken from the ENC, taking into account the current water level value {doc}`entered manually </sections/vessel-settings/vessel-dimensions/index>` |
| **4** | Distance between WPs | Distance between waypoints |
| **5** | Course | On the route leg |
| **6** | Arrival time | At the WP |
| **7** | Departure time | From the WP |
| **8** | Stay time | At the WP |
| **9** | Selected WP | Marker of the currently selected point |

```{tip}
**If ECDIS operation is interrupted for any reason, navigation along the activated route will resume when operation is restored.**
```

In the expanded view, information for all points is displayed.

### Route deactivation

**After passing the last waypoint, the route is automatically deactivated.**

The **Deactivate** button forcibly stops route monitoring.

### Track monitoring recommendations

**Preparation for route activation:**
1. Analyze the route safety check results
2. Verify the currency of ENCs and update data
3. Check the operability of navigational sensors

**Monitoring process:**
1. Continuously monitor XTD deviation
2. Track the navigation schedule
3. Analyze monitoring system warnings
4. Monitor changes in the navigational situation

**Safety control:**
1. Do not ignore alarm and warning signals
2. Respond promptly to route deviations
3. Adjust speed if necessary

```{important}
**Track monitoring requires constant attention from the officer of the watch.**

Automation does not relieve the navigator of the duty to maintain traditional navigational plotting and monitor navigation safety.
```

### Features of working with an activated route

**Limitations with an active route:**
- **Editing of the route is prohibited**
- **Vessel dimensions cannot be changed**
- **Safety criteria cannot be adjusted**
- **Deletion of the active route is unavailable**

```{warning}
**In case of unforeseen circumstances (new obstacles, weather condition changes, technical malfunctions), immediately deactivate the route and make a decision on further actions.**

The safety of the vessel and crew takes priority over compliance with the voyage plan.
```

```{note}
Track monitoring is the final stage of voyage planning. The quality of its execution directly affects the safety and efficiency of navigation.
```
