peter vovsha, parsons brinckerhoff, new york, ny, usa gaurav vyas, parsons brinckerhoff, new york,...
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•Peter Vovsha, Parsons Brinckerhoff, New York, NY, USA•Gaurav Vyas, Parsons Brinckerhoff, New York, NY, USA•Danny Givon, Jerusalem Transportation Masterplan Team (JTMT), Jerusalem, Israel•Yehoshua Birotker, Jerusalem Transportation Masterplan Team (JTMT), Jerusalem, Israel
USUAL WORK ARRANGEMENTS: STATISTICAL ANALYSIS AND
MODEL IMPLEMENTATION FOR JERUSALEM
1TRB Application
Conference, May 2013
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Commuting to work: Main traffic component in peak periods Cornerstone of travel demand modeling
Traditional view on commuters: Full-time worker Commuting every regular workday Commuting in peak hours AM / PM Inflexible schedule dictated by employer
New tendencies: Growing number of alternative flexible arrangements New phenomena like telecommuting
Motivation
2TRB Application
Conference, May 2013
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Alternative work arrangements affect: Commuting patterns and frequency Sensitivity to congestion pricing and other
policies Correspond to policy levers:
Compressed work weeks Peak spreading for work hours
Incorporation in travel models: Explicit (sub-model) or implicit (DAP, work trip
rates)? Assumptions for future (fixed or trends?)
Implications for Modeling
3TRB Application
Conference, May 2013
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Arrangement Normal Alternative
Job type Full time Part-time
Number of jobs 1 2+
Usual workplace location
Out of home - permanent
At home
Out of home - variable
Commuting frequency
5 days a week 1-4 days a week (compressed)
6-7 days a week (extended)
Telecommuting frequency
Low (less than once a week)
High (once a week or greater)
Schedule flexibility No / little Yes / significant
Usual schedule AM / PM Second shift, other
Taxonomy of Usual Work Arrangements
4
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Population Sector # Households Full-time
workersPart-time workers
Secular 4,887
5,251
1,277
Ultra Orthodox
2,119
1,162
558
Arab 1,224
1,528
198
Total 8,230
7,941
2,033
Jerusalem Household Travel Survey, 2010
5TRB Application
Conference, May 2013
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Job Type
• Full-time• Part-time
Number of Jobs
• 1• 2+
Empl.Type
• Hired• Self Employed
Work Place
• Home• Permanent Work Place• Varied Work Location
24 Alternatives
If home is notthe work place
Usual Work Location Model
Commuting Frequency and Flexibility
Person and Household
Characteristics; Occupation
Main Work Arrangement (lifestyle)
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Commuting Frequency and Flexibility
7
Number of Days Working
1/7
7/7
4/7
2/7
3/7
5/7
6/7
Telecommuting Frequency (8 categories)
Schedule Flexibility: 1) No, 2) Some, 3) High, 4) No
schedule
Usual Schedule (5 categories)TRB Application
Conference, May 2013
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Usual Schedule Categories
TRB Application Conference, May 2013
8
Usual Arrival Time to work
Usual Departure Time from work
Before Noon Noon-2 PM 2 PM-4PM
4 PM - 6 PM
6 PM - 8 PM
8 PM - 10 PM
10 PM - 12 PM
After Midnight
Before 6 AM 113 31 58 49 18 11 4 3
6 AM - 8 AM 24 142 670 872 247 39 12 23
8 AM - 10 AM 19 472 881 1,182 557 119 18 32
10 AM - Noon 0 21 43 39 65 27 8 1
Noon - 2 PM 0 1 7 25 14 14 6 3
2 PM - 4 PM 0 0 1 5 15 27 32 5
4 PM - 6 PM 0 0 0 3 8 18 14 7
After 6 PM 0 0 0 0 2 1 19 26Conventional Schedule
Early DepartureNormal Departure and late arrival
Over Workers (early arrival and late departure)Second shift workers
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Main Work Arrangement: 2 for Job types 2 for number of jobs 2 for Employment types 3 for Work location
Utility function: 4 parameterized terms by main dimensions:
Job types Number of jobs Employment types Work location
Interaction terms (2-way constants)
Choice Model 1
9TRB Application
Conference, May 2013
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Work Location 40 TAZs are sampled from the pool of all
TAZs Size variables include inter-sector friction
variables Sampling is based on the employment
characteristics and impedance between origin and destination TAZ
Choice Model 2
10TRB Application
Conference, May 2013
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Commuting Frequency and Flexibility: 7 for number of days working 'n+1' alternatives for telecommuting frequency for ‘n’
number of days at work 4 for schedule flexibility 5 for usual work schedule
Utility function: 4 parameterized terms by main dimensions:
Number of days at work Telecommuting frequency Schedule flexibility Usual work schedule
Interaction terms (2-way constants)
Choice Model 3
11TRB Application
Conference, May 2013
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Variables Part-time 2+ jobs Self-employed
Home as work place
Variable work place
Age>65 years More More Less
Young Arab More
Arab Male Less Less More Less Less
Arab Female More Less Less Less Less
Higher Education
More Less More Less
Clerical worker More Less More More Less
Manufacturing, construction
worker
Less Less More Less More
Non-professional
More Less Less More Less
Behavioral Insights – Main Work Arrangements
TRB Application Conference, May 2013
12
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Behavioral Insights-Main Work Arrangements
TRB Application Conference, May 2013
13
Interaction
2+Jobs Self-employed
Home as work place
Variable work place
Part-time Positive Positive Positive Positive
Self employed
Positive Positive
Variable Work place
Positive
Variables Part-time 2+ jobs Self-employed
Home as work place
Variable work place
Low Income More Less More More
Female and presence of
children
More Less More More Less
Only worker and
household size>1
More for Arab Sector
More
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Behavioral Insights –Work Location
TRB Application Conference, May 2013
14
0 10 20 30 40 50 60 70
-10.00
-8.00
-6.00
-4.00
-2.00
0.00
2.00
4.00
FTW, Male, Medium Income.lower education, Secular(Base) PT Worker Effect Female Effect
Lowinc Effect Highinc Effect Female with pre-school child
Higher Education Arab Orthodox
Female with Part time
Util
ity
Base
Individual Marginal Effects
Distance, km
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Behavioral Insights –Work Location (Unique Feature)
TRB Application Conference, May 2013
15
Inter-Sector (Social) Friction
Residential Sector/Area
Employment Sector/Area
Arab Orthodox SecularArab High High
Orthodox Very High Very HighSecular Very High High
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Variables Number of days at work
Telecommuting frequency
Schedule Flexibility
Usual Schedule/ duration
Part-time worker Less than 5 Less More Less conventional
Self-employed Less than 5 More More Less duration
Multiple jobs More than 5 More More Less conventional
Variable work place
Less than or equal to 5
More More More conventional
Academic professional
More than 5 More More More conventional
Orthodox-female
Less than 5 Less Less Less conventional
Age>65 years Less than 5 More More Less duration
Higher Education
Less than 5 More More More conventional
Behavioral Insights –Commuting Frequency Model
16
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Variables Number of days at work
Telecommuting frequency
Schedule Flexibility
Usual Schedule/
work duration
Female and presence of
children
More likely equal to 5
Less Less duration
Low Income More likely equal to 5
Less Less duration
Female and low income
More
Behavioral Insights –Commuting Frequency Model
17
Interaction No-schedule Some Flexibility
High Flexibility
Telecommuting Positive
Non-conventional
schedule
Negative Negative Negative
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Placement in Jerusalem CT-RAMP ABM
18
Population Synthesis
Main Long-term Work Arrangements
Long-term Location Choices
Usual Commuting Freq. & Flexibility
Household & Person Mobility Attributes
Daily Activity-Travel Pattern Type & Time Allocation
Tour Formation
Location of Non-Work Act.
Tour & Trip Details
Traffic &Transit Network
Simulations
1
23
4
5
TRB Application Conference, May 2013
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Evolution of usual work arrangements: Communication technology revolution (work from
home, telecommuting) Structural shifts in industry & occupation (flexible
work hours, self employment) Consequence of growing congestion (compress
work weeks) Choice Models:
Statistically estimated for base year Adjustments for future years:
Scenarios and trends (for example, growing telecommuting)
Policy tests (for example, shifted usual work hours)
Forecasting
19TRB Application
Conference, May 2013
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Understanding principal changes in commuting patterns:
Growing share of alternative work arrangements Incorporation in travel models:
Policy lever / scenario management Policy implications of alternative work
arranges: Beneficial for reduction of commuting volumes
in peak periods Demand elasticity to congestion pricing Impact on total VMT remains unclear
Conclusions and Perspectives
20TRB Application
Conference, May 2013