Central Data Catalog
XIII Recenseamento Geral da População e III Recenseamento Geral da Habitação 1991 - IPUMS Subset
Integrated Public Use Microdata Series (IPUMS)
Portugal Instituto Nacional de Estatística (INE), Minnesota Population Center
April 25, 2018
April 25, 2018
Documentation in PDF
Main mode of transportation to work or study (PT1991A_0429)
0 - 9
Questions and instructions
[Questions 4-28 were asked only of residents present at the time of the census.]
[Questions 15-17 were asked of individuals who study or have job]
17. Main mode of transport
What is the main mode of transport you use to travel to your place of work or study?
 1 None, walk
 2 Bus, light train or underground
 3 Train
 4 Company or School collective transport
Car or van:
 5 as driver
 6 as passenger
 7 Motorcycle or bicycle
 8 Other
NIU (not in universe)
None - walk
Bus, underground or light train
Company or school collective transport
Car or van - as driver
Car or van - as passenger
Motorcycle or bicycle
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.
Note: For individuals that reside elsewhere different from where they are staying at 0:00 o'clock of April 15, 1991, end the filling-in of the questionnaire here.
[Applies to questions 4-28]
Attention: Only present and resident who have a job or are studying answer questions 15, 16 and 17.
Question 17: Main mode of transportation
The individual must indicate the main mode of transportation used daily during the most part of the way to go to work or to the place of study.
The enumerated must choose only one mode of transport used; only the one he uses the most.
This variable indicates the main mode of transportation to work or study.
Students and employed persons
Work Variables -- PERSON