A 2009 Mobile Source Carbon Dioxide Emissions Inventory for the University of Central Florida

Figures & data

Figure 1. Location map showing UCF and surroundings in central Florida.

Table 1. Required inputs for a “Custom Domain” in MOVES

Local inputs for MOVES
Age Distribution	Age fractions of fleet by age and source type
Avg. Speed Distribution	Speed distribution by road type, hour, and source type
Fuel Supply	Market share of fuel blends
Fuel Formulation	Composition of fuel blends (RVP, sulfur, oxygenates, etc.)
Meteorology	Temperature and humidity inputs
Ramp Fraction	Fraction of freeway VHT occurring on ramps
Road Type Distribution	Fraction of source type VMT on different road types
Source Type Population	Number of local vehicles operating in the area
Vehicle Type VMT	Total VMT by HPMS vehicle class
Month VMT Fraction	Allocation factors to distribute annual VMT by month, day type (weekday vs. weekend), and hour
Day VMT Fraction
Hour VMT Fraction
I/M Programs	Description of I/M programs, if any
Zone Road Activity	Allocates source hours operating on each road type to zones
Notes: RVP = Reid vapor pressure; VHT = vehicle-hours traveled; HPMS = highway performance monitoring system; I/M Programs = inspection and maintenance programs.

Figure 2. Schematic diagram representing online survey instrument.

Table 2. UCF Campus Population for 2009 and Survey Representation

	Spring 2009		Summer 2009		Fall 2009
Group	Campus population	Survey representation (%)	Campus population	Survey representation (%)	Campus population	Survey representation (%)
Administrative	282	65	282	62	278	66
Faculty	1,771	10	1,502	10	1,727	11
Staff/other	3,015	12	3,015	10	2,971	12
Graduate students	7,212	6	5,316	6	8,246	5
Undergraduate commuter students	31,997	5	21,023	5	34,956	4
Undergraduate resident students	9,142	3	6,006	4	9,988	3
Total UCF population	53,418	5	37,144	5	58,620	5
Note: Some surveys were not used because those respondents exited the survey before completing it, or gave answers that were deemed unrealistic (e.g., several respondents said they commuted 50–100 miles [one-way] 9 or 10 times per week). Other surveys were excluded as statistical outliers. The survey representation is presented as (number of surveys used/campus population), percentage, for each semester.

Table 3. Emission factors used in the UCF Mobile Source Emissions Inventory

Source	Emissions factor
GHG Protocol	0.23 kg CO2/passenger mile (car)
UK DEFRA	0.163 kg CO2/passenger mile (train)
	0.308 kg CO2/passenger mile (airline)
U.S. DOE	8.115 kg CO2/gallon (B2 biodiesel)
	7.978 kg CO2/gallon (E10 gasohol)
	9.942 kg CO2/gallon (ultra low sulfur off road diesel)

Table 4. CO₂ mobile source emissions by group for UCF

UCF group	Tons CO2/year
Commuters (administrators,	122,658
faculty, staff, and students)
UCF Shuttle	2,092
Campus visitors	2,600
UCF Fleet vehicles	1,451
Maintenance	8.93
Business travel
Car	547
Train	2.20
Airline	4,509
Total	133,868

Table 5. Emissions from the UCF commuter population

UCF Group	CO2, tons/year	Percentages(%)
Administrative	945	0.8
Faculty	4,902	4.0
Staff/other	10,757	8.8
Graduate students	18,179	14.8
Undergraduate students	87,875	71.6
Total	122,658	100

Table 6. VMT of the UCF commuter population

Group	Spring 2009 VMT	Summer 2009 VMT	Fall 2009 VMT	2009 Annual VMT
Administrative	662,592	487,473	614,768	1,764,836
Faculty	3,827,788	1,935,528	3,513,104	9,276,420
Staff/other	7,879,898	5,148,277	7,308,142	20,336,317
Graduate students	13,863,124	5,461,176	15,014,320	34,338,622
Undergraduate commuter students	73,435,954	24,508,464	75,509,856	173,472,274
Visitors				5,850,000
UCF shuttle	470,106	362,934	416,985	1,250,025
UCF Fleet vehicles				8,198
Business travel
Car	799,024	776,625	580,023	2,155,672
Train	2,505	8,615	977	12,097
Airline	3,475,078	4,767,435	5,057,335	13,299,848
Total UCF population	104,416,063	43,456,538	105,316,330	261,764,303

Table 7. Comparison of UCF and Orange County mobile source emissions

	Central Florida Area, Orange County	University of Central Florida
Source	CO2 (tons/year)	CO2 (tons/year)
On-road	8,185,289	129,348
Nonroad	792,303	4,520
Totals	8,977,592	133,868

Table 8. Comparison of the 2009 CO₂ Mobile Source Emissions Inventory for UCF and UMD

Group	University of Central Florida, tons CO2/yr	University of Maryland, tons CO2/year
Employee commuting	16,604	20,175
Student commuting	106,054	21,566
Shuttle	2,092	2,218
Visitors	2,600	NR
Fleet and maintenance vehicles	1,460	4,486
Business Travel	5,058	NR
Total	133,868	48,446
Note: NR, not reported.