Events layer

The Events layer displays a wide set of events that may be registered in road traffic.

These events are identified according to the DATEX II standard.

Events can be mainly classified according to their effects on the traffic road model:

  • Active: The event is producing effects on the traffic road model in the current time, thus the current time falls in the time period set by the parameters START TIME - END TIME.
  • Inactive: The event is not producing effects because the current time falls out of the time period set by the parameters START TIME - END TIME.
  • Terminated: The event has finished producing its effects because the current time exceeds the time limit of the event END TIME.
  • Future: The event is not active now but can be activated at a future time, thus the current time precedes the event START TIME.

An example of event is the limitation of traffic in a specific area in a specific time period, for example all days from 8 AM to 12 AM.

This event is active in the specified time period and inactive (but not terminated) before 8 AM and after 12 PM.

Another example is the unexpected fall of a tree (active event), that requires the authorities to close the access to the road involved.

After the tree is removed, the event is set as terminated and the road is reopened.

Every event is characterized by a specific icon.

The color of the icon indicates the state of the event:

  • Red: active event.
  • Gray: terminated event.
  • Yellow: future event.

Event icon

Description

Abnormal traffic

Forecast of abnormal traffic

Abnormal traffic event terminated

Accident

Forecast of accident

Accident event terminated

Activity

Forecast of activity

Event activity terminated

Road conditions

Forecast of road conditions

Road conditions event terminated.

You can manage different geometric entities:

  • Linear, displayed as thick lines with event icons on both terminal points.
  • Point, displayed through the related icons.
  • Area, displayed as polygons with an icon in the middle.
 
Option type Description
Theme

It allows you to choose one of a set of graphic themes to represent the layer entities.
Show inactive events

It allows you to select the check-box to display only inactive events.
Show future events

It allows you to select the check-box to display only future events (yellow icons).

To set a wide set of attributes for an event, see (→ Event management).

  1. Click on an event icon to open the pop-up window with detailed information about the event.

The selected event is colored with a purple element:

  • A bold circle for point events.

  • A bold line for linear events.

  1. Select the layer in the ACTIVE LAYERS list.
  2. Click the List icon.

A pop-up window with a list of items opens. Every item represents an event which is characterized by a set of attributes.

Other operations are available for the layer (→ Operations on layers).

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