David Levinson Life-Cycle, Money, Space, and the Allocation of Time by David Levinson, University of California, Berkeley Levinson, David (1999) Title: Space, Money, Life-cycle, and the Allocatio n of Time . Transportation 26: 141-171. http://nexus.umn.edu/Papers/LifeCycle.pdf
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David Levinson 1 Life-Cycle, Money, Space, and the Allocation of Time by David Levinson, University of California, Berkeley Levinson, David (1999) Title:
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David Levinson 1
Life-Cycle, Money, Space, and the Allocation of Time
by David Levinson,
University of California, Berkeley
Levinson, David (1999) Title: Space, Money, Life-cycle, and the Allocation of Time. Transportation 26: 141-171. http://nexus.umn.edu/Papers/LifeCycle.pdf
David Levinson 2
Outline
Introduction Data Travel Duration Correlations Activity Duration Choice Model Conclusions
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Introduction
Travel and Activity are Two Sides of the Same Coin
Time in Travel = f (Time at Activity) Time at Activity = f (Life-Cycle, Money,
Space, Temporal Factors, Constraints) Activities Considered (Home, Work,
Shop, Other) Daily Activity Budget (24 hrs)
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Data
1990/91 Nationwide Personal Transportation Survey
Survey Inverted to Get Activity Diary 21800 Households, 47000 individuals,
150000 Trips Individuals whose total activities did not
add to 1440 minutes, excluded This study looks only at adults (18-65)
HOME WORK SHOP OTHER TRAVELCMSA Name 1990 Population Mean Std Dev t-stat Mean Std Dev t-stat Mean Std Dev t-stat Mean Std Dev t-stat Mean Std Dev t-stat Cases
Less Than$5,000$5,000-$9,999$10,000-$14,999$15,000-$19,999$20,000-$24,999$25,000-$29,999$30,000-$34,999$35,000-$39,999$40,000-$44,999$45,000-$49,999$50,000-$54,999$55,000-$59,999$60,000-$64,999$65,000-$69,999$70,000-$79,999$75,000-$79,999$80,000
Less Than$5,000$5,000-$9,999$10,000-$14,999$15,000-$19,999$20,000-$24,999$25,000-$29,999$30,000-$34,999$35,000-$39,999$40,000-$44,999$45,000-$49,999$50,000-$54,999$55,000-$59,999$60,000-$64,999$65,000-$69,999$70,000-$79,999$75,000-$79,999$80,000
+
Income Level
Time (in minutes)
Female, Worker Male, Worker
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Time at Shop by Income Level
0
10
20
30
40
50
60
Less Than$5,000$5,000-$9,999$10,000-$14,999$15,000-$19,999$20,000-$24,999$25,000-$29,999$30,000-$34,999$35,000-$39,999$40,000-$44,999$45,000-$49,999$50,000-$54,999$55,000-$59,999$60,000-$64,999$65,000-$69,999$70,000-$79,999$75,000-$79,999$80,000
Less Than$5,000$5,000-$9,999$10,000-$14,999$15,000-$19,999$20,000-$24,999$25,000-$29,999$30,000-$34,999$35,000-$39,999$40,000-$44,999$45,000-$49,999$50,000-$54,999$55,000-$59,999$60,000-$64,999$65,000-$69,999$70,000-$79,999$75,000-$79,999$80,000
Less Than$5,000$5,000-$9,999$10,000-$14,999$15,000-$19,999$20,000-$24,999$25,000-$29,999$30,000-$34,999$35,000-$39,999$40,000-$44,999$45,000-$49,999$50,000-$54,999$55,000-$59,999$60,000-$64,999$65,000-$69,999$70,000-$79,999$75,000-$79,999$80,000