1 Introduction
Route Building - Basic
This simulation is comprised of a step-by-step walkthrough showing how to build a practical route, including consideration of rules, and the method of efficiency. The Basic Route walkthrough shows unctionality required for a domestic route within North America.
We estimate that this will take 3 minutes to complete.
2 Detailed Explanation
What is MTTA?
MTTA creates a route using the following steps:
■ Creates a list of all transition points of each SID to the transition points of all STARs (if available)
■ Once it determines the first waypoint, it will determine the airway or direct legs that run from that waypoint
■ Next it will determine the time to the next waypoint considering the user settings
■ MTTA compares all options waypoint by waypoint and rejects ones with the greater time, fuel or cost (depending on user settings)
■ Any route that is
greater than 30% of the Origin to Destination distance is
discarded
The process is continued until all possibilities are tested, leaving the most optimal route with the least accumulated time, fuel or cost
What
is MTTA Factor?
The MTTA search
space allows you to configure the area of searchable between
origin and destination. The greater the search factor,
the more possible waypoints you can use in building your route. This
value can be set within the range of 1.1-2.0.
For example, an
MTTA factor of 1.1 tells the system to use a corridor width that
is 10% of the distance between two waypoints at halfway between
the two waypoints.
HINT
MTTA - will
optimize using airways.
Click
the New button.
To begin, start in the Route screen and click New.
HINT
If your company has stored routes, they will appear as a list on this screen.
Click
the Generate button.
The route defaults to MTTA in the text box. You can paste a route you created into this box or use MTTA.
Optimized routes are based on 3 options: Least Fuel, Least Cost and Least Time.
HINT
You may select a SID/STAR or you can leave it blank and the MTTA will select the best available.
Click
the Apply button.
Applying the route updates the flight plan, but it will not run a compute. This allows you to make additional changes to the plan as needed.
Your new route now appears in the Plan screen.
Click
the ORIG KLAX dropdown
button.
This example demonstrates what happens when a route cannot be built.
Change the runway out of KLAX on this route using the same SID and transition.
Click
the 24L list
item.
Click
the Generate button.
When the runway is changed from 6R to 24L, the SID turns red. This means that the SID is not available for that runway selection.
Click Error
message.
An error is generated and displayed in the lower-left area of the application if you attempt a compute while the SID field is red. You will not be able to generate a flight plan.