AirRouteOperator.AirspaceSafety Property
Gets or sets an attribute variable giving the safety factor of each airspace.
Syntax
public AttributeVariable< System.Double > AirspaceSafety { get; set; }Property Value
Default: 0.0
The safety factor of each airspace.
Remarks
The AirspaceSafety is an attribute variable that is normally evaluated using the attributes of each restricted airspace feature. More generally, the evaluation will also consider the View.UpdateAttributes, as well as the attributes of the feature from WaypointsInput.
The evaluated safety factor should be non-negative. By default, airspaces have zero safety which means they are completely forbidden to enter, but an airspace with a positive safety factor can be passed through. A safety factor between 0 and 1 indicates a risky airspace, while a factor greater than 1 indicates an extra-safe airspace.
More technically, the routing algorithm will try to minimize the route cost, which is the true travel time plus time penalties in risky airspaces minus time discounts in extra-safe airspaces. That is, the route cost is a fictional travel time based on fictional speeds: at each position along the route, the operator uses the current climb angle and the AircraftType.SpeedProfile to calculated the true speed, which is converted to the fictional speed by multiplication with the safety factors of all airspace that contain the position.
If the safety factor is positive so that the airspace can be passed through, each output route leg will have six extra attributes for each value of the AirspaceName, giving the travel time and distance spent in the named airspace. For details, see the section "Attributes from airspaces" in the operator class page.
See also Aircraft Routing.
Platforms
Windows, Linux, Android