• Introduction

    This webpage provides notes and resources for customers who receive quarterly data outputs from the Passenger Survey. These outputs are agreed under contract before the start of each survey year. 

    If you would like to know more about these outputs please email us at PassengerSurveyDataRequest@caa.co.uk

    Current release

    • The current release is January – June 2019. 
    • This is provisional data.
    • The next release is January – September 2019 (Provisional) which is scheduled for November 2019.
    • The Q2 output does not contain any records from the London City Survey.  We are waiting on a suitable airport submission from London City Airport which will enable us to calculate the London City Survey weights.  We expect to have received this from the airport to enable them to be included in the Q3 outputs.

    Output contents

    You output will include

    • Your contracted data output which may include any of the following
    • Documentation – This includes a dictionary to help Users understand the data. It also includes information on recent changes to the structure of either the Primary or Secondary dataset.
    • Lookup – This is a set of reference material that can be used to decode the data (principally in the Primary data table).

    Caution and disclaimer

    1. It should be noted that all data releases prior to the Final clean release remain Final until the final release has been made.
    2. Subsequent quarterly releases may contain amendments to earlier quarter. For instance, the Q3 issue may contain revisions to earlier Q1 & Q2 figures.
    3. Survey information is derived from systematic random interviews of departing air passengers.
    4. Weighting statistics are based on CAA’s Airport statistical database. The information contained in this report has been compiled from various sources of data. CAA validates this data, however, no warranty is given as to its accuracy, integrity or reliability.
    5. Matching rates are derived from the Survey weights and the monthly Airport Passenger Statistic reported by the airports. In a small number of instances the reporting of scheduled and charter passengers by these airports may differ from the information captured in the passenger survey results.
    6. From 2019 the weighting process no longer migrates populations across quarters. To indicate populations not sampled we have included “dummy” records. These records do not represent any interviews and are present to balance the dataset to the Airport ATM figures. They can be disregarded when analysing passenger profiles.
    7. Customers should satisfy themselves of the integrity of this data prior to proceeding with any subsequent data interrogation. 
    8. CAA will assist in the checking of key statistics where possible. 
    9. CAA will not and cannot accept any liability for any financial loss caused by the person’s reliance on survey statistics.
    10. CAA insists that they are referenced in any publication that makes reference to CAA Statistics.
    11. No data may be sold onto any third party.

    2019 Q2 Provisional Weights

    APT Flight Traffic Figures Survey Weights Survey Records Matching Rate
    BFS S 3,014,299 2,915,998 2,207 96.74%
    BFS C 86,852 63,616 89 73.25%
    BHD S 1,192,359 1,191,905 1,298 99.96%
    BHD C 1,648 1,529 3 92.78%
    BHX S 5,313,420 4,978,354 3,139 93.69%
    BHX C 590,458 510,250 638 86.42%
    BRS S 3,759,588 3,408,121 2,710 90.65%
    BRS C 385,486 289,921 271 75.21%
    CWL S 482,909 482,357 1,807 99.89%
    CWL C 263,122 214,679 539 81.59%
    EMA S 1,897,672 1,858,430 2,516 97.93%
    EMA C 206,709 197,007 485 95.31%
    INV S 430,040 428,828 1,958 99.72%
    INV C 1,943 1,175 16 60.47%
    LGW S 21,020,885 20,576,714 14,824 97.89%
    LGW C 1,203,531 997,438 969 82.88%
    LHR S 38,720,713 38,543,567 27,112 99.54%
    LHR C 29,710 4,873 20 16.40%
    LTN S 8,510,769 8,368,448 5,087 98.33%
    LTN C 99,977 57,207 52 57.22%
    MAN S 12,559,618 11,401,786 11,184 90.78%
    MAN C 1,041,678 895,445 1,392 85.96%
    SEN S 859,389 806,720 1,035 93.87%
    SEN C 125 0 0 0.00%
    STN S 13,356,080 13,075,806 11,823 97.90%
    STN C 164,042 85,195 152 51.93%

    2019 Q2 Response Rates

    APT Positive Negative
    BFS 2296 133
    BHD 1301 75
    BHX 3811 838
    BRS 2998 842
    CWL 2375 419
    EMA 3017 404
    INV 2010 18
    LCY 3160 521
    LGW 16049 2274
    LHR 27153 6665
    LTN 5235 1192
    MAN 12633 2124
    SEN 1163 171
    STN 12205 2446