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Transcript of ILUTE Toronto Activity Panel Survey: Demonstrating the Benefits of a Multiple Instrument Panel...
ILUTE
Toronto Activity Panel Survey: Demonstrating the Benefits of a
Multiple Instrument Panel Survey
Matthew J. Roorda
UNIVERSITY OF TORONTO
ILUTE
Can we ever obtain the data we would like to have?
ACTIVITY ATTRIBUTES OF INTEREST:
Type, purpose, meaning, utility, project, participants, time, duration, location, tools
SCHEDULING ATTRIBUTES OF INTEREST:
When was activity first conceived? Scheduled for the 1st time? Original aim? Was the aim achieved? Could other activities have replaced it? Activity priority? Activity Flexibility in time and space? Cost of dropping or changing an activity etc…
(Axhausen, 1998)
ILUTE
Can we ever obtain the data we would like to have?
AXHAUSEN’S CONCLUSIONS:
• We will never obtain all the data we need from one person
• We need to distribute the data needs across multiple persons using multiple survey instruments
OUR REPONSE:
• Toronto Area Panel Survey
• 3-wave, multi-instrument panel survey
ILUTE
Overview of the Panel Survey• 3 Waves – households contacted once a year
• 271 households
• Multiple household members participate
• Study Area: City of Toronto, Urban York Region, Mississauga
• A panel survey is being conducted simultaneously in Quebec City
• Core Survey Data – 2 day activity diary
• Additional data collected for each wave
ILUTE
Multiple Instrument Design
ALL WAVES2–day detailed
activitydiary
WAVE 1Detailed
Scheduling Info,7 days
WAVE 2Stated Preference
SchedulingConflicts
CORE SURVEY DATA
WAVE 3GPS route
tracking
ADDITIONAL SURVEY DATA
ILUTE
Wave 1 – CHASEChase SchedulingDiary
InterviewHousehold
Household keeps schedules on laptopfor 7 days
Follow-upInterview
Retrieve datafrom laptop
ILUTE
Wave 1 – CHASE
Additional Survey Data• 7-days activity schedule with activity description, time,
duration, location, mode, participants,
• Planning process for all activities (when planned, modified, deleted)
• Revealed information on how scheduling conflicts handled
• Flexibility of activities in time, space, mode, participants
ILUTE
Wave 2 – Stated Adaptation Survey• Participants keep a 2 day “memory jogger” diary
• Activity diary is retrieved by telephone
• ONE out-of-home activity chosen randomly from the person’s diary. Stated Adaptation questions are asked about that activity.
• Set of TWO consecutive activities is chosen randomly. Stated Adaptation questions asked to to try to assess activity priority.
• Purpose – understand conflict resolution strategies
ILUTE
Wave 2 – Stated Adaptation SurveyExample Questions:
“What would have happened if you had a 1 hour delay in getting to this activity?”
“What would you have done if the car mode was not available to get to that activity?”
“Imagine that work was going to take longer than you planned. This would have caused you to be 1 hour late for your dinner engagement. What would you have done?”
ILUTE
Wave 3 – GPS Tracking?• Survey not yet designed
• Possibly a GPS unit with a hand-held scheduling device
ILUTE
Benefits of Using a Multi-Instrument Panel
• Obtain benefits of a multi-wave panel (core data collected in each year is consistent)– long vs short term dynamics of scheduling behaviour– Assess behaviour changes in response to other changes in
the household
• Benefits of Multi-Instrument- assess instrument bias (core data collected in different
ways)- Many more additional data elements- Survey more interesting for respondents (lower rates of
attrition)
ILUTE
An Example Person – Wave 1
HomeSleep
Breakfast
HomeCleaning
MealTV
Wash/dressSleep
Work
Shop
HomeSleep
Breakfast
HomeCleaning
MealTV
Wash/dressSleep
Work
Bank
Post Office
GetNewspaper
6:00am
3:30pm
4:30pm
6:00am
3:00pm
3:45pm
4:15pm5:15pm
Thursday Friday
ILUTE
The Same Person – Wave 2
HomeSleep
BreakfastReady for work
HomePlay with kidsPrepare dinner
Eat dinner
Work
5:50
Thursday Friday
HomeKids to bed
Sleep
Coffee
WorkLoc’n 2
Work
Shop
Drop off wife VisitFriendPickup wife
10:30
10:5013:3014:30
15:00
18:1518:25
21:3021:40
HomeSleep
Ready for work
HomeClean house
Prepare dinnerEat dinner
Work
5:40
HomeKids homework
Coffee
WorkLoc’n 2
Work
Shop
9:10
9:3014:0815:00
15:50
18:15
Drop off wife
Pickup wife
18:25
HomeKids to bed
Sleep
21:45
22:00
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Core Survey Data ComparisonData Element Wave 1 Wave 2 (1st 24)
Avg Activities/Day – weekday 13.70 13.14
Avg Activities/Day – weekend 13.12 12.32
Avg Trips/Day – weekday 4.44 4.91
Avg Trips/Day – weekend 3.51 2.82
% Trips by Transit - weekday 12.9% 5.6%
% Trips by Transit – weekend 4.4% 0%
Lots of other comparative statistics can be generated…
ILUTE
Other Ideas for AnalysisComparison of the Core 2-day Survey
• Further explore habitual behaviour– Are preplanned activities more habitual than spontaneous
activities?– Which elements of a schedule are consistent from year to
year? Departure time for the 1st activity?
• Assessment of survey instruments– Assess whether differences in waves be attributed to
survey instrument? Or are there real shifts in behaviour over time?
ILUTE
Ideas for AnalysisExploiting the Additional Data from Each Wave
– Can we summarize the planning behaviour from Wave 1 into some person attributes that can be used to better explain executed schedules in Wave2? (e.g. Organized person vs scatterbrain?)
– Revealed (Wave 1) vs hypothetical (Wave 2) scheduling strategies. Are they consistent?
– Build scheduling rules for modelling