### Runway Throughput

```Runway Throughput
Daric Megersa
SYS 461
Runway Throughput
 Key Terms





Maximum Throughput Capacity (MTC)
Runway Occupancy time (ROT)
Simultaneous Runway Occupancy(SRO)
Inter_Arrival separation
Compression and Expansion cases
http://catsr.ite.gmu.edu/SYST460/RunwayCapacityWorkbook.pdf
What is Runway Throughput ?
 Maximum Throughput Capacity(MTC)- It’s a measure of the
capacity of a runway. It defines the average movements(both
arrival and departure) that can be performed in an hour time.
 Assumption made when measuring Runway throughput






Non-stop arriving /departing aircrafts
No simultaneous runway occupancy(SRO)
ATC separation due to Wake-vortex
Additional buffer distance to void separation rules
Fleet Mix
Final approach path distance
http://catsr.ite.gmu.edu/SYST460/RunwayCapacityWorkbook.pdf
Runway Throughput Capacity for
Homogeneous Fleet Mix
 The capacity of the runway to meet SRO
(Simultaneous Runway Occupancy) runway
determined ROT (runway occupancy time)
= 3600sec/ ROT
 The runway throughput for a runway to account for
the Wake Vortex Separation Distance requirements is
determined by the separation distance.
http://catsr.ite.gmu.edu/SYST460/RunwayCapacityWorkbook.pdf
Runway Throughput Capacity for
Homogeneous Fleet Mix
 The Runway Throughput for a runway, to meet only
the Wake Vortex Separation Rule, for a
homogeneous fleet mix, is determined by the time
between arriving aircraft at the runway threshold,
known as inter-arrival time (t).
=3600/(s/v)
http://catsr.ite.gmu.edu/SYST460/RunwayCapacityWorkbook.pdf
Runway Throughput Capacity for
Homogeneous Fleet Mix
 The Runway throughput for a runway with
homogeneous fleet mix to account for the
ATC/Controller Separation Buffer for maintaining
Wake Vortex Separation Distance requirements is
determined by the separation distance plus the buffer
distance.
= 3600/((s/v) + b), where t = (s/ v) + b
http://catsr.ite.gmu.edu/SYST460/RunwayCapacityWorkbook.pdf
Runway Throughput Capacity for a
Non-Homogeneous Fleet Mix
 Runway capacity for non-homogeneous dependent
on the fleet mix on the runway. Fleet mix on the
runway represented by the probability of each
aircraft arriving
 Ex - Fleet mix for ATL
http://atsl-g4-733.cee.vt.edu/courses/cee5614/cee5614_pub/Capacity_example_time_space.pdf
Runway Throughput Capacity for a
Non-Homogeneous Fleet Mix
 The Runway Throughput for a runway, to meet only
the Simultaneous Runway Occupancy (SRO) rule, for
a non-homogeneous fleet mix, is determined by
 ROT (in sec)
= 3600/E[ROT]
E[ROT]= = ∑i (pi *ROTi)
http://catsr.ite.gmu.edu/SYST460/RunwayCapacityWorkbook.pdf
Runway Throughput Capacity for a
Non-Homogeneous Fleet Mix
 The Runway throughput for a runway, to meet only
the Wake Vortex Separation Rule, for a
nonhomogeneous fleet mix, is determined by:
 The separation distance between the lead and the
follow
 The groundspeed of the aircraft
http://catsr.ite.gmu.edu/SYST460/RunwayCapacityWorkbook.pdf
Runway Throughput Capacity for a
Non-Homogeneous Fleet Mix
as the inter-arrival time (tij) and is represented by the
Inter-arrival Time Matrix T
 the Inter-Arrival Time Matrix T, is computed as follows:
r=length of the approach path
http://catsr.ite.gmu.edu/SYST460/RunwayCapacityWorkbook.pdf
Runway Throughput Capacity for a
Non-Homogeneous Fleet Mix
 Compression Case- When the lead aircraft is slower than