ilute event-driven time-series based dynamic model of decision making processes conceptual framework...
DESCRIPTION
ILUTE Typical approach WORKSHOPPINGNIGHT SLEEPHH DUTIES WORKSHOPPINGNIGHT SLEEP JOINT SOCIAL EVENT WORKSHOPPINGNIGHT SLEEP JOINT SOCIAL EVENT HH DUTIESTRANSCRIPT
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Event-Driven Time-Series Based Event-Driven Time-Series Based Dynamic Model of Decision Making Dynamic Model of Decision Making
ProcessesProcesses
Conceptual FrameworkConceptual FrameworkAgenda FormationAgenda FormationM. Litwin and E. MillerM. Litwin and E. Miller
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Presentation outline Deficiencies of existing modeling frameworks Conceptual framework Agenda Formation Research direction
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Typical approach
WORK SHOPPING NIGHT SLEEPHH DUTIES
WORK SHOPPING NIGHT SLEEPJOINT
SOCIAL EVENT
WORK SHOPPING NIGHT SLEEP
JOINT SOCIAL EVENT
HH DUTIES
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Deficiencies of existing frameworks Lack of coherent theoretical foundation Crude conceptualization of time Insufficient representation of dynamics Lack of dynamic interface with network performance
models Limited communication with other model components Lack of explicit agenda formation Sequential activity and destination / mode choice
processes Crude representation of joint activities at the household
level and lack of provisions for interactions between households
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John McTaggart, 1866-1925 A series – series of positions
from past to present to future B series – series of positions
from earlier to later C series – series of events
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Sir James Jeans, 1877-1946 Conceptual time – exists only
in the mind of an individual, multidimensional
Perceptual time – acts of perception come one after another, one-dimensional
Physical time – time of physics and astronomy
Absolute time – counterpart of Newton’s absolute space
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A-SPACE
Buy a carAt home
Time Horizon
Framework
Work
C-SPACE of EVENTS
Got a job
Left home
Called spouse
Pick-up child
Shopping
Dentist
OBSERVED SCHEDULE PROVISIONAL SCHEDULE
WORK GROCERY
PICK-UP
AT HOME
Physical Time
Traffic Jam
Left work
B-SPACE
MENTAL
SIMULATION
NOW
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ILUTEModify A-Space
Link NOW with Time Horizon and project activities / projects from
A-Space into B-Space
Modify provisional schedule (activity and travel characteristics)
Generate EVENTS in C-Space
Move NOW to the next Event
Build observed schedule
End of modeled interval reached?NO
STOP
YES
Location Choice
Auto Ownership
Dynamic Traffic Assignment
Regional Economics
Flows & TT’s
Land Use
Government Policies
Transportation System
Demographics
External Impacts
Figure ONE
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Where to go from there? Need to change conceptual approach
Intervals in physical time scale vs. events, time series and relations
Need to look at social sciences and psychology Social context of decision making Social networks Functions of activities The role of the actor and its orientation
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Talcott Parsons, 1902-1979Crucial feature of societies, as of biological organisms, is homeostasis (maintaining a stable state), and that their parts can be understood only in terms of the whole.Ref. "The Social System" 1951
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Functionalism in sociologyPERSON
ACTOR (role)
Socialization
Orientation
Rat
iona
l
Afe
ctiv
e
Cat
etic
ACTIVITY
SYSTEM
PATTERNS
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Weekly household activity scheduling process model
Doherty, S. T. and Axhausen, K. W. 1999. The development of a unified modelling framework for the household activity-travel scheduling process. In W. Brilon, F. Huber, M. Schreckengerg, and H. Wallentowitz (eds.) Traffic and Mobility: Simulation-Economics-Environment, pp. 35-56. Berlin: Springer.
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Functionalism and ILUTEPERSON
ACTOR (role)
Socialization
Orientation
Rat
iona
l
Afe
ctiv
e
Cat
etic
ACTIVITY
SYSTEM
PATTERNS
HH Member
Discriminant functionPl
anne
d
Pre-
plan
ned
Impu
lsiv
e
Statistics, Econometrics,
Maslow, Hägerstrand,
Cognitive processes
PATTERNS
Socio-demographic
characteristics
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The Box
Doherty, S. T. et al. (2000) A conceptual model of the weekly household activity-travel scheduling process
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Action systemthe Four-Function Paradigm
ADAPTATION
(ECONOMY)
GOAL ATTAINMENT
(POLITY)
LATENCY
(CULTURE)
INTEGRATION
(SOCIETY)
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Action systemthe Four-Function Paradigm
AT HOME
WORK
PERSONAL BUSINESS
SPORT
SCHOOL
SOCIAL & RELIGIOUS
SOCIAL & RELIGIOUS
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Research directions Implementation of the framework Agenda formation with provisional sequence Development of the B-space using CHASE Replacing activity classification approach with functional
approach
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ILUTE
Event-Driven Time-Series Based Event-Driven Time-Series Based Dynamic Model of Decision Making Dynamic Model of Decision Making
ProcessesProcesses
Conceptual FrameworkConceptual FrameworkAgenda FormationAgenda FormationM. Litwin and E. MillerM. Litwin and E. Miller
Thank youThank you