The design of a comprehensive microsimulator of household vehicle fleet composition, utilization, and evolution

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LIST OF TABLES
TABLE 1 Sample Characteristics
TABLE 2a Estimates of the Vehicle Type Choice Component of Vehicle Selection Module
TABLE 2b Estimates of the Vehicle Usage Component of Vehicle Selection Module
TABLE 3 Disaggregate Measures of Fit for the Validation Sample
TABLE 4a Replacement Decision of Evolution Module: Binary Logit Model
TABLE 4b Addition Decision of Evolution Module: Binary Logit Model

LIST OF FIGURES
FIGURE 1 Vehicle fleet composition, utilization, and evolution simulator framework.

TABLE 1 Sample Characteristics

Variable	Sample Share (%)	Mean Mileage
Vehicle Type
Compact Car	25.6	11894.36
Car	29.3	11887.08
Small Cross-utility Vehicle	4.8	11612.97
SUV	18.5	13099.24
Van	5.9	13019.13
Pickup	16.0	12310.61
Number of vehicles
Zero	1.8
One	28.4
Two	50.0
Three	14.2
Four or more	5.6
Number of adults
One	18.5
Two	64.3
Three	10.7
Four	4.9
Five or more	1.5
Number of workers
Zero	18.3
One	34.5
Two	39.8
Three	5.5
Four or more	1.9
Location
Urban	48.2
Suburban	47.8
Rural	4.0
Presence of senior adults	22.1
Presence of children
0-4 years	12.8
5-11 years	14.9
12 to 15 years	10.4
Household Income
<$20k	3.3
Between $20 and $40K	13.1
Between $40 and $60K	16.0
Between $60K and 80K	18.3
Between $80K and $100K	14.8
Between $100K and $120K	10.8
> $120K	23.7
Educational Attainment
High school	8.2
College (with/without degree)	58.0
Post Graduate	33.8
Total Sample Size	1165

FIGURE 1 Vehicle fleet composition, utilization, and evolution simulator framework.

TABLE 2a Estimates of the Vehicle Type Choice Component of Vehicle Selection Module

Variable 	Constant	Generic Effects
		Cost Variables				Vehicle Performance		Incentives
		*Purchase Price10,000 ($)**	Fuel cost per gallon ($)	Fuel cost per year /10,000 ($)	Maintenance cost per year/1000 ($)	Acceleration Time (0 to 60 mph)	Miles per Gallon /100	Car pooling	Free parking
No vehicle	--	--	--	--	--	--	--	--	--
	--	--	--	--	--	--	--	--	--
Compact Car (CC)	-0.9371
	(-5.95)
Car	-1.3264
	(-9.05)
Small cross utility vehicle (SCU)	-2.8986
	(-14.28)
SUV	-2.5797
	(-15.38)
Van	-3.5886
	(-10.66)
Pickup	-2.0160
	(-11.89)
Gasoline	--	-0.6950 (-18.90)	-0.1469 (-1.86)	-4.7015 (-10.22)	-0.4843 (-2.35)	-0.0424 (-3.12)	4.8838 (13.59)	1.3079 (11.34)	1.4419 (12.19)
	--
Flex Fuel	-6.2144
	(-24.53)
Plug-in Hybrid	-6.4622
	(-16.20)
CNG	-10.1330
	(-12.47)
Diesel	-4.3522
	(-18.67)
Hybrid Electric (HE)	-4.1772
	(-23.36)
Fully Electric (FE)	-9.2407
	(-12.46)
New Car	--
	--
1 or 2 years	-1.9193
	(-7.53)
3 to 7 years	-1.3114
	(-13.38)
8 to 12 years	-3.1988
	(-17.45)
>12 years	-3.8380
	(-14.78)

TABLE 2a Estimates of the Vehicle Type Choice Component of Vehicle Selection Module (Continued)

Variable 	Generic Effects			Fuel Infrastructure/Vehicle Range			Demographics
	Incentives			Fuel Infrastructure/Vehicle Range			Number of male adults (>=16 years)	Number of female adults (>=16 years)	Household Income
	$1,000 Tax credits	50% Reduced toll	$1,000 Vehicle price reduction	Fuel availability (1 in 50 stations)	Vehicle range (150 to 200 miles)	Vehicle range (>200 miles)			Household Income
	$1,000 Tax credits	50% Reduced toll	$1,000 Vehicle price reduction	Fuel availability (1 in 50 stations)	Vehicle range (150 to 200 miles)	Vehicle range (>200 miles)			< $20K	($20K,$40K)	($40K,$60K)	($60K,$80K)
No vehicle	--	--	--	--	--	--	--	--	--	--	--	--
	--	--	--	--	--	--	--	--	--	--	--	--
CC				--	--	--	--	--	--	--	--	0.5159
				--	--	--	--	--	--	--	--	(4.67)
Car				--	--	--	0.4800	--	--	--	0.5436	1.1559
				--	--	--	(7.60)	--	--	--	(4.01)	(8.49)
SCU				--	--	--	--	--	--	--	--	0..9642
				--	--	--	--	--	--	--	--	(5.32)
SUV				--	--	--	0.3614	0.3614	--	--	0.3895	1.3496
				--	--	--	(7.85)	(7.85)	--	--	(2.31)	(8.82)
Van				--	--	--	0.5299	--	--	--	--	0.5645
				--	--	--	(4.02)	--	--	--	--	(3.56)
Pickup				--	--	--	0.6896	--	--	--	0.5322	0.8608
				--	--	--	(8.28)	--	--	--	(3.29)	(5.60)
Gasoline	1.5135 (17.74)	1.1110 (9.83)	1.2653 (10.53)	--	--	--	--	--	--	--	--	--
				--	--	--	--	--	--	--	--	--
Flex Fuel				--	--	--	--	--	0.5122	0.5122	--	--
				--	--	--	--	--	(2.37)	(2.37)	--	--
Plug-in				--	--	--	-0.5595	--	-0.4032	--	--	--
				--	--	--	(-8.11)	--	(-1.52)	--	--	--
CNG				-0.3278	4.6639	4.8415	--	--		--	--	--
				(-1.48)	(5.49)	(5.88)	--			--	--	--
Diesel				--	--	--	--	-0.4497	-0.9198	-0.9198	--	--
				--	--	--	--	(-4.06)	(-5.08)	(-5.08)	--	--
HE				--	--	--	-0.5595	--	--	--	--	0.3078
				--	--	--	(-8.11)	--	--	--	--	(2.88)
FE				-0.3278	4.6639	4.8415	--	0.4141	--	--	--
				(-1.48)	(5.49)	(5.88)	--	(2.84)	--	--	--	--
New Car				--	--	--	--	--	--	--	--	--
				--	--	--	--	--	--
1 or 2 years				--	--	--	--	--	--	0.5852	0.5852	0.5852
				--	--	--	--	--	--	(2.30)	(2.30)	(2.30)
3 to 7 years				--	--	--	--	--	--	0.5852	0.5852	0.5852
				--	--	--	--	--	--	(2.30)	(2.30)	(2.30)
8 to 12 yrs				--	--	--	--	--	--	0.9603	0.6543	--
				--	--	--	--	--	--	(6.71)	(4.35)	--
> 12 years				--	--	--	0.5111	--	--	0.9603	0.6543	--
				--	--	--	(3.17)	--	--	(6.71)	(4.35)	--

Directory: prof -> bhat -> ABSTRACTS
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ABSTRACTS -> Household Vehicle Type Holdings and Usage: An Application of the Multiple Discrete-Continuous Extreme Value (mdcev) Model Chandra R. Bhat and Sudeshna Sen
ABSTRACTS -> Assessing the impact of urban form measures on nonwork trip mode choice after controlling for demographic and level-of-service effects Jayanthi Rajamani
ABSTRACTS -> The Impact of Demographics, Built Environment Attributes, Vehicle Characteristics, and Gasoline Prices on Household Vehicle Holdings and Use Chandra R. Bhat

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