Table 5
Multinomial Logit Departure Time Choice Models for
Daily Home-to-Work Auto Person Trips

Alternative Variable Model 20W Model 21W Model 22W
Shoulder Peak Name Coeff. T-Stat. Coeff. T-Stat. Coeff. T-Stat.
# Constant 0.6003 (4.9) 0.6004 (4.9) 0.6012 (4.9)
# Constant 1.372 (12.7) 1.431 (12.6) 1.613 (11.1)
# CTFT -0.02677 (1.0) -0.02698 (1.0) -0.02817 (1.0)
# CTFT -0.07152 (2.9) -0.07157 (2.9) -0.07687 (3.0)
# SR Dummy 0.1966 (1.2) 0.1973 (1.2) 0.1977 (1.2)
# SR Dummy 0.395 (2.8) 0.3952 (2.8) 0.3793 (2.7)
# Auto Distance 0.04524 (3.3) 0.04528 (3.3) 0.0455 (3.3)
# Auto Distance 0.07538 (5.6) 0.07513 (5.6) 0.07684 (5.7)
# Auto Distance^2 -5.256E-04 (2.2) -5.254E-04 (2.2) -5.259E-04 (2.2)
# Auto Distance^2 -1.101E-03 (4.3) -1.102E-03 (4.3) -1.119E-03 (4.3)
# Bridge Dummy -0.3862 (1.9) -0.385 (1.9) -0.4065 (2.0)
# SFOBB WB -0.6333 (1.8) -0.6353 (1.8) -0.7418 (2.0)
# Retail Industry -0.3519 (2.1) -0.4078 (2.4) -0.4074 (2.4)
# Service Industry - - - -0.1594 (1.6) -0.1601 (1.6)
# Rural Job - - - - - - -0.457 (1.5)
# Suburban Job - - - - - - -0.1848 (1.6)
# Urban Job - - - - - - -0.2867 (2.2)


Utility(Off-Peak) = 0
Utility(Shoulder) = constant + beta01 * CTFT . . . etc.
Utility(Peak) = constant + beta02 * CTFT . . . etc.

Variable Definitions:
CTFT = Congested Time Less Free-Flow Time, zone-to-zone
SR Dummy = Share Ride 2+ Dummy variable
Auto Distance = Door-to-door auto distance, in miles
Auto Distance^2 = Square of door-to-door auto distance, in miles
Bridge Dummy = Bridge crossing dummy variable (based on drive alone toll)
HH Income = Household income in 1989 constant dollars
SFOBB WB = Bay Bridge AM Westbound dummy variable
Retail Industry = Retail occupation, by zone of work
Service Industry = Service occupation, by zone of work
Rural Job = Dummy variable for job in rural area
Suburban Job = Dummy variable for job in suburbab area
Urban Job = Dummy variable for job in urban area (not CBD)

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