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Origin and Destination Survey (DB1B)
3/31/14
Prepared by: Lance Sherry
1
Airline Origin and Destination Survey Databank 1B (DB1B)
• DB1B has a 10% random sample of airline passenger tickets
• Frequency: Quarterly
• Range:1993—Present
• Source: TranStats, US Department of Transportation, Bureau of Transportation Statistics:http://www.transtats.bts.gov/TableInfo.asp?DB_ID=125
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Three Data-bases
(1) Coupon – operating carrier, origin airport, destination airport, number of passengers, fare class, coupon type, trip break indicator.
(2) Market – directional market characteristics: origin airport, destination airport, prorated airfare, number of coupons.
(3) Ticket – individual – summary characteristics of each itinerary including: reporting carrier, origin/destination, prorated airafe, number of market coupons)
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Markets
Relationship
Ticket (e.g. Roundtrip)
Markets
Markets Coupons
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Contents
Itin ID
Market ID
Year Quarter
Sequyence No.
Coupons
No. of Pax
Fare Class
Market Fare
Roundtrip Fare
Distance
Origin
Dest Carrier
Itin Yield
Coupon
X X X X X X X X X X X X
Market
X X X X X X X X X X X
Ticket
X X X X X X X X X X X
Marketfare is prorated Roundtrip Fare
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Contents and Relationships
ABQ ATL DFW
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Fare Class
• C Unrestricted Biz
• D Restricted Biz
• F – Unrestricted 1st Class (6%)
• G – Restricted 1st Class (9%)
• U – Unknown
• X – Unrestricted Coach (72%)
• Y – Restricted Coach (11%)
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Data Filtering
• Delete records with 0 or NULL fares
• Delete records with fares < $50 and > $5000
– Or least 10%, greatest 10%
• Delete records with trip distance < 200nm and trip distance > 10,000
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0
1000
2000
3000
4000
5000
6000
7000
8000
9000
10000
0 2000 4000 6000 8000 10000 12000
Stag
e-l
en
gth
(n
m)
Airfare ($)
Airfare vs Stage-length (DCA Q1 2013)
Airfares > $2000?
Saipan
Guam
Honolulu, Anchorage, …
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Airfare DCA_SFO
0
5
10
15
20
25
0 50 100 150 200 250 300 350 400 450 500 550 600
Fre
qu
ency
Airafe ($)
Airfare DCA-SFO
0
200
400
600
0 100 200 300 400 500 600 700 800 900 1000
Fre
qu
en
cy
Airafe ($)
Airfare (DCA-ATL)
Drop these
Best Fit: Airfare = (Ln(Cumulative_Demand) - Ln(Market_Size))/Airfare_Sensitivity Parameters: Market_Size – maximum demand Airfare_Sensitivity – akin to price elasticity
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Airline Revenues from Airfares
• Adjusted Airfare for Fees
• Airfare Revenue for Airlines= 0.949(Airfare) + $.44
• Subtract Taxes and Fees – Ticket Tax 7.5%
– Segment Fee (e.g $3.50)
– Passenger Facility Charge (e.g. $2.50)
• Add Ancillary Fees – Baggage
– Fuel
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