Implications of the Implementation of the MOBILE6 Emissions Factor Model on Project-Level Impact Analyses Using the CAL3QHC Dispersion Model

Appendix A: MOBILE5 versus MOBILE6 Comparison Tables

Table A.1.1. 2005 Carbon Monoxide Composite Emission Factor % Change
at Different Ambient Temperatures and Average Speeds

Base Case with Inspection and Maintenance Program

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	-56.83%	-56.67%	-56.58%	-56.58%	-56.68%	-56.85%	-57.07%	-56.45%	-53.86%	-50.86%
3.4	-54.29%	-54.13%	-54.08%	-54.16%	-54.41%	-54.83%	-55.41%	-55.24%	-52.91%	-49.93%
7.1	-45.42%	-45.25%	-45.34%	-45.73%	-46.49%	-47.75%	-49.50%	-50.73%	-49.10%	-46.01%
12.1	-35.29%	-35.12%	-35.33%	-36.03%	-37.29%	-39.37%	-42.26%	-44.73%	-43.49%	-40.02%
19.5	-23.97%	-23.78%	-24.12%	-25.11%	-26.88%	-29.80%	-33.87%	-37.65%	-36.83%	-33.01%
35.9	46.40%	46.43%	45.34%	42.90%	38.80%	32.34%	23.54%	16.03%	18.90%	27.27%

Table A.1.2. 2005 Carbon Monoxide Composite Emission Factor forMobile 5b
at Different Ambient Temperatures and Average Speeds

Base Case with Inspection and Maintenance Program

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	521.95	461.54	408.01	360.41	317.89	284.12	256.88	231.11	227.36	242.69
3.4	160.45	141.98	125.60	111.04	98.03	87.70	79.36	71.47	70.36	75.13
7.1	90.65	80.30	71.12	62.96	55.67	49.88	45.20	40.78	40.18	42.92
12.1	63.22	55.98	49.57	43.87	38.77	34.73	31.46	28.37	27.94	29.83
19.5	48.02	42.48	37.57	33.20	29.29	26.19	23.69	21.33	20.98	22.38
35.9	23.68	20.96	18.55	16.41	14.50	12.98	11.75	10.59	10.42	11.12

Table A.1.3. 2005 Carbon Monoxide Composite Emission Factor forMobile 6
at Different Ambient Temperatures and Average Speeds

Base Case with Inspection and Maintenance Program.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	225.32	199.99	177.15	156.49	137.72	122.61	110.27	100.64	104.91	119.26
3.4	73.34	65.13	57.68	50.90	44.69	39.61	35.38	31.99	33.13	37.62
7.1	49.47	43.96	38.88	34.17	29.79	26.06	22.83	20.09	20.45	23.17
12.1	40.91	36.32	32.06	28.06	24.31	21.05	18.16	15.68	15.79	17.89
19.5	36.51	32.37	28.50	24.86	21.42	18.39	15.67	13.30	13.25	14.99
35.9	34.67	30.70	26.97	23.45	20.12	17.17	14.51	12.28	12.39	14.16

Table A.1.4. 2035 Carbon Monoxide Composite Emission Factor % Change
at Different Ambient Temperatures and Average Speeds

Base Case with Inspection and Maintenance Program.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	-79.50%	-79.30%	-79.18%	-79.14%	-79.20%	-79.37%	-79.63%	-79.68%	-78.85%	-77.65%
3.4	-77.90%	-77.70%	-77.61%	-77.64%	-77.81%	-78.14%	-78.62%	-78.95%	-78.25%	-77.02%
7.1	-72.39%	-72.21%	-72.23%	-72.47%	-72.98%	-73.86%	-75.08%	-76.25%	-75.90%	-74.52%
12.1	-66.81%	-66.64%	-66.75%	-67.18%	-68.01%	-69.40%	-71.33%	-73.28%	-73.21%	-71.62%
19.5	-61.01%	-60.83%	-61.00%	-61.61%	-62.74%	-64.63%	-67.26%	-70.20%	-70.86%	-69.41%
35.9	-21.52%	-21.28%	-21.80%	-23.24%	-25.81%	-29.97%	-35.69%	-42.29%	-44.41%	-41.99%

Table A.1.5. 2035 Carbon Monoxide Composite Emission Factor forMobile 5b
at Different Ambient Temperatures and Average Speeds

Base Case with Inspection and Maintenance Program.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	483.35	426.72	376.78	332.59	293.33	262.51	237.97	214.83	211.53	224.95
3.4	149.80	132.34	116.94	103.31	91.20	81.69	74.12	66.98	65.98	70.16
7.1	85.67	75.77	67.04	59.31	52.44	47.05	42.76	38.71	38.16	40.55
12.1	60.48	53.48	47.31	41.85	36.99	33.18	30.15	27.29	26.89	28.58
19.5	46.51	41.09	36.31	32.08	28.32	25.37	23.02	20.81	20.49	21.77
35.9	22.12	19.55	17.29	15.28	13.50	12.10	10.98	9.93	9.78	10.39

Table A.1.6. 2035 Carbon Monoxide Composite Emission Factor forMobile 6
at Different Ambient Temperatures and Average Speeds

Base Case with Inspection and Maintenance Program.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	99.09	88.33	78.46	69.38	61.00	54.15	48.48	43.65	44.74	50.27
3.4	33.11	29.51	26.18	23.10	20.24	17.86	15.85	14.10	14.35	16.12
7.1	23.65	21.05	18.62	16.33	14.17	12.30	10.66	9.19	9.20	10.33
12.1	20.07	17.84	15.73	13.73	11.83	10.15	8.65	7.29	7.21	8.11
19.5	18.14	16.10	14.16	12.32	10.55	8.97	7.54	6.20	5.97	6.66
35.9	17.36	15.39	13.52	11.73	10.01	8.47	7.06	5.73	5.44	6.03

Table A.2.1. 2005 Carbon Monoxide Composite Emission Factor % Change at Different Ambient Temperatures and Average Speeds

Without Inspection and Maintenance Program.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	-55.52%	-55.38%	-55.31%	-55.33%	-55.45%	-55.62%	-55.83%	-55.19%	-52.59%	-49.60%
3.4	-53.11%	-52.97%	-52.93%	-53.03%	-53.29%	-53.69%	-54.22%	-53.99%	-51.63%	-48.65%
7.1	-44.81%	-44.65%	-44.74%	-45.12%	-45.84%	-47.01%	-48.62%	-49.67%	-47.95%	-44.87%
12.1	-35.32%	-35.16%	-35.36%	-36.01%	-37.19%	-39.12%	-41.77%	-43.96%	-42.60%	-39.19%
19.5	-24.76%	-24.57%	-24.88%	-25.79%	-27.44%	-30.13%	-33.87%	-37.36%	-36.65%	-33.16%
35.9	44.08%	44.15%	43.17%	40.92%	37.13%	31.17%	23.10%	16.05%	18.43%	25.96%

Table A.2.2. 2005 Carbon Monoxide Composite Emission Factor forMobile 5b
at Different Ambient Temperatures and Average Speeds

Without Inspection and Maintenance Program.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	570.12	504.02	445.60	393.76	347.58	311.15	281.99	254.45	250.75	267.57
3.4	175.10	154.89	137.03	121.18	107.06	95.91	86.99	78.57	77.47	82.69
7.1	98.86	87.53	77.52	68.64	60.72	54.47	49.47	44.75	44.16	47.15
12.1	68.98	61.06	54.06	47.85	42.32	37.95	34.45	31.15	30.73	32.80
19.5	52.46	46.39	41.03	36.26	32.02	28.68	26.00	23.47	23.13	24.67
35.9	25.85	22.87	20.24	17.91	15.83	14.19	12.87	11.63	11.47	12.24

Table A.2.3. 2005 Carbon Monoxide Composite Emission Factor forMobile 6
at Different Ambient Temperatures and Average Speeds

Without Inspection and Maintenance Program.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	253.60	224.90	199.12	175.88	154.86	138.09	124.56	114.02	118.89	134.85
3.4	82.10	72.85	64.49	56.91	50.01	44.42	39.82	36.15	37.47	42.46
7.1	54.56	48.45	42.84	37.67	32.89	28.87	25.42	22.52	22.99	25.99
12.1	44.61	39.59	34.94	30.62	26.58	23.11	20.06	17.46	17.64	19.95
19.5	39.47	34.99	30.82	26.91	23.24	20.04	17.19	14.70	14.65	16.49
35.9	37.24	32.97	28.98	25.23	21.70	18.61	15.84	13.50	13.58	15.41

Table A.2.4. 2035 Carbon Monoxide Composite Emission Factor % Change
at Different Ambient Temperatures and Average Speeds

Without Inspection and Maintenance Program.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	-76.34%	-76.10%	-75.94%	-75.86%	-75.87%	-75.95%	-76.08%	-75.91%	-74.74%	-73.29%
3.4	-74.82%	-74.59%	-74.45%	-74.43%	-74.54%	-74.77%	-75.10%	-75.17%	-74.12%	-72.65%
7.1	-69.58%	-69.35%	-69.30%	-69.47%	-69.88%	-70.59%	-71.60%	-72.42%	-71.68%	-70.07%
12.1	-64.24%	-64.01%	-64.03%	-64.35%	-65.04%	-66.21%	-67.83%	-69.35%	-68.86%	-67.06%
19.5	-58.68%	-58.43%	-58.50%	-58.96%	-59.90%	-61.51%	-63.75%	-66.26%	-66.71%	-65.29%
35.9	-17.66%	-17.25%	-17.55%	-18.69%	-20.85%	-24.41%	-29.34%	-35.05%	-36.72%	-34.36%

Table A.2.5. 2035 Carbon Monoxide Composite Emission Factor forMobile 5b
at Different Ambient Temperatures and Average Speeds

Without Inspection and Maintenance Program.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	531.99	469.56	414.62	366.12	323.14	289.61	263.11	238.17	234.92	249.82
3.4	164.76	145.51	128.58	113.62	100.36	90.02	81.85	74.16	73.17	77.81
7.1	94.12	83.21	73.61	65.14	57.62	51.76	47.13	42.77	42.22	44.87
12.1	66.45	58.74	51.96	45.97	40.66	36.51	33.24	30.16	29.76	31.63
19.5	51.16	45.18	39.93	35.28	31.17	27.96	25.42	23.03	22.72	24.14
35.9	24.31	21.48	18.99	16.79	14.84	13.31	12.11	10.98	10.83	11.51

Table A.2.6. 2035 Carbon Monoxide Composite Emission Factor forMobile 6
at Different Ambient Temperatures and Average Speeds

Without Inspection and Maintenance Program.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	125.88	112.20	99.75	88.38	77.97	69.65	62.93	57.39	59.35	66.73
3.4	41.49	36.98	32.85	29.05	25.56	22.72	20.38	18.42	18.94	21.28
7.1	28.64	25.50	22.60	19.89	17.36	15.22	13.39	11.80	11.95	13.43
12.1	23.77	21.14	18.69	16.39	14.21	12.34	10.69	9.24	9.27	10.42
19.5	21.14	18.78	16.57	14.48	12.50	10.76	9.22	7.77	7.56	8.38
35.9	20.02	17.77	15.66	13.65	11.74	10.06	8.56	7.13	6.85	7.55

Table A.3.1. 2005 Carbon Monoxide Composite Emission Factor % Change
at Different Ambient Temperatures and Average Speeds

3-Years-Newer Average Age Fleet Distribution for Light-duty Vehicles and Trucks.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	-55.81%	-55.63%	-55.53%	-55.50%	-55.56%	-55.66%	-55.80%	-55.09%	-52.41%	-49.38%
3.4	-52.86%	-52.69%	-52.63%	-52.71%	-52.94%	-53.33%	-53.87%	-53.67%	-51.29%	-48.26%
7.1	-42.66%	-42.51%	-42.62%	-43.05%	-43.88%	-45.22%	-47.08%	-48.47%	-46.90%	-43.74%
12.1	-31.34%	-31.21%	-31.49%	-32.27%	-33.67%	-35.93%	-39.07%	-41.90%	-40.83%	-37.29%
19.5	-18.89%	-18.75%	-19.18%	-20.30%	-22.26%	-25.47%	-29.93%	-34.27%	-33.75%	-29.87%
35.9	57.15%	57.04%	55.71%	52.91%	48.31%	41.14%	31.37%	22.44%	24.42%	32.79%

Table A.3.2. 2005 Carbon Monoxide Composite Emission Factors forMobile 5b
at Different Ambient Temperatures and Average Speeds

3-Years-Newer Average Age Fleet Distribution for Light-duty Vehicles and Trucks.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	411.60	364.23	322.05	284.31	250.39	223.06	200.66	179.35	175.72	187.60
3.4	126.85	112.34	99.41	87.85	77.45	69.08	62.21	55.67	54.59	58.31
7.1	71.94	63.79	56.53	50.04	44.20	39.49	35.63	31.96	31.37	33.52
12.1	50.24	44.54	39.46	34.91	30.82	27.53	24.83	22.25	21.84	23.32
19.5	38.16	33.79	29.89	26.40	23.27	20.74	18.67	16.70	16.36	17.46
35.9	18.75	16.61	14.71	13.00	11.47	10.24	9.23	8.27	8.11	8.66

Table A.3.3. 2005 Carbon Monoxide Composite Emission Factors forMobile 6
at Different Ambient Temperatures and Average Speeds

3-Years-Newer Average Age Fleet Distribution for Light-duty Vehicles and Trucks.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	181.90	161.60	143.22	126.52	111.28	98.90	88.69	80.55	83.63	94.97
3.4	59.79	53.15	47.09	41.54	36.45	32.24	28.69	25.79	26.59	30.17
7.1	41.25	36.68	32.44	28.49	24.81	21.63	18.85	16.47	16.66	18.86
12.1	34.49	30.64	27.03	23.64	20.45	17.64	15.13	12.93	12.92	14.63
19.5	30.95	27.45	24.16	21.04	18.09	15.46	13.08	10.98	10.84	12.24
35.9	29.46	26.08	22.90	19.89	17.02	14.45	12.12	10.12	10.09	11.49

Table A.3.4. 2035 Carbon Monoxide Composite Emission Factor % Change
at Different Ambient Temperatures and Average Speeds

3-Years-Newer Average Age Fleet Distribution for Light-duty Vehicles and Trucks.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	-78.55%	-78.35%	-78.23%	-78.20%	-78.25%	-78.40%	-78.62%	-78.63%	-77.73%	-76.46%
3.4	-76.73%	-76.55%	-76.47%	-76.51%	-76.68%	-77.02%	-77.50%	-77.81%	-77.05%	-75.74%
7.1	-70.54%	-70.39%	-70.44%	-70.73%	-71.29%	-72.24%	-73.55%	-74.83%	-74.47%	-72.98%
12.1	-64.29%	-64.16%	-64.32%	-64.83%	-65.75%	-67.27%	-69.37%	-71.55%	-71.55%	-69.85%
19.5	-57.78%	-57.64%	-57.89%	-58.59%	-59.86%	-61.93%	-64.82%	-68.11%	-68.92%	-67.37%
35.9	-15.03%	-14.90%	-15.58%	-17.26%	-20.12%	-24.71%	-31.02%	-38.43%	-40.94%	-38.36%

Table A.3.5. 2035 Carbon Monoxide Composite Emission Factors forMobile 5b
at Different Ambient Temperatures and Average Speeds

3-Years-Newer Average Age Fleet Distribution for Light-duty Vehicles and Trucks.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	385.09	340.26	300.49	265.04	233.32	207.98	187.40	167.87	164.46	174.84
3.4	119.50	105.67	93.39	82.46	72.67	64.85	58.50	52.47	51.44	54.67
7.1	68.48	60.63	53.67	47.47	41.91	37.47	33.87	30.45	29.88	31.74
12.1	48.33	42.79	37.87	33.48	29.55	26.42	23.87	21.46	21.05	22.35
19.5	37.11	32.82	29.01	25.62	22.58	20.15	18.18	16.31	15.98	16.97
35.9	17.68	15.65	13.84	12.23	10.78	9.63	8.69	7.81	7.65	8.13

Table A.3.6. 2035 Carbon Monoxide Composite Emission Factors forMobile 6
at Different Ambient Temperatures and Average Speeds

3-Years-Newer Average Age Fleet Distribution for Light-duty Vehicles and Trucks.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	82.62	73.66	65.41	57.79	50.74	44.93	40.06	35.87	36.63	41.16
3.4	27.80	24.78	21.98	19.37	16.94	14.90	13.16	11.64	11.80	13.26
7.1	20.17	17.95	15.86	13.90	12.03	10.40	8.96	7.67	7.63	8.58
12.1	17.26	15.33	13.51	11.78	10.12	8.65	7.31	6.11	5.99	6.74
19.5	15.67	13.90	12.22	10.61	9.06	7.67	6.40	5.20	4.97	5.54
35.9	15.03	13.32	11.68	10.12	8.61	7.25	6.00	4.81	4.52	5.01

Table A.4.1. 2005 Carbon Monoxide Composite Emission Factor % Change
at Different Ambient Temperatures and Average Speeds

3-Years-Older Average Age Fleet Distribution for Light-duty Vehicles and Trucks.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	-56.25%	-56.09%	-56.00%	-56.01%	-56.12%	-56.33%	-56.63%	-56.11%	-53.66%	-50.73%
3.4	-53.81%	-53.64%	-53.59%	-53.68%	-53.93%	-54.39%	-55.03%	-54.95%	-52.76%	-49.85%
7.1	-45.25%	-45.06%	-45.12%	-45.50%	-46.25%	-47.52%	-49.31%	-50.61%	-49.15%	-46.17%
12.1	-35.16%	-34.95%	-35.13%	-35.79%	-37.03%	-39.11%	-42.01%	-44.55%	-43.53%	-40.22%
19.5	-23.70%	-23.45%	-23.74%	-24.68%	-26.40%	-29.31%	-33.38%	-37.27%	-36.76%	-33.19%
35.9	45.30%	45.45%	44.50%	42.20%	38.25%	31.93%	23.26%	15.55%	17.55%	25.19%

Table A.4.2. 2005 Carbon Monoxide Composite Emission Factors forMobile 5b
at Different Ambient Temperatures and Average Speeds

3-Years-Older Average Age Fleet Distribution for Light-duty Vehicles and Trucks.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	623.42	551.04	487.04	430.25	379.65	339.70	307.70	277.48	273.39	291.83
3.4	191.12	169.03	149.50	132.16	116.72	104.52	94.75	85.52	84.31	90.02
7.1	107.50	95.17	84.26	74.57	65.94	59.13	53.67	48.52	47.87	51.13
12.1	74.75	66.15	58.55	51.81	45.79	41.05	37.25	33.65	33.19	35.44
19.5	56.66	50.09	44.28	39.12	34.53	30.91	28.01	25.26	24.89	26.56
35.9	28.21	24.96	22.08	19.53	17.25	15.46	14.02	12.66	12.48	13.32

Table A.4.3. 2005 Carbon Monoxide Composite Emission Factors forMobile 6
at Different Ambient Temperatures and Average Speeds

3-Years-Older Average Age Fleet Distribution for Light-duty Vehicles and Trucks.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	272.73	241.97	214.28	189.26	166.58	148.33	133.46	121.78	126.69	143.79
3.4	88.28	78.37	69.39	61.22	53.77	47.67	42.61	38.53	39.82	45.14
7.1	58.86	52.29	46.24	40.64	35.45	31.03	27.21	23.96	24.34	27.52
12.1	48.47	43.04	37.98	33.26	28.84	25.00	21.60	18.66	18.75	21.19
19.5	43.23	38.34	33.77	29.47	25.42	21.85	18.66	15.85	15.74	17.74
35.9	40.99	36.30	31.91	27.77	23.85	20.39	17.28	14.63	14.67	16.68

Table A.4.4. 2035 Carbon Monoxide Composite Emission Factor % Change
at Different Ambient Temperatures and Average Speeds

3-Years-Older Average Age Fleet Distribution for Light-duty Vehicles and Trucks.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	-80.32%	-80.11%	-79.99%	-79.95%	-80.03%	-80.21%	-80.50%	-80.60%	-79.84%	-78.69%
3.4	-78.79%	-78.59%	-78.49%	-78.52%	-78.69%	-79.03%	-79.54%	-79.89%	-79.25%	-78.08%
7.1	-73.57%	-73.37%	-73.37%	-73.59%	-74.08%	-74.94%	-76.14%	-77.30%	-77.01%	-75.71%
12.1	-68.27%	-68.08%	-68.16%	-68.56%	-69.35%	-70.69%	-72.56%	-74.46%	-74.43%	-72.94%
19.5	-62.78%	-62.57%	-62.71%	-63.28%	-64.36%	-66.18%	-68.72%	-71.54%	-72.19%	-70.82%
35.9	-25.03%	-24.72%	-25.17%	-26.50%	-28.94%	-32.94%	-38.45%	-44.79%	-46.84%	-44.56%

Table A.4.5. 2035 Carbon Monoxide Composite Emission Factor forMobile 5b
at Different Ambient Temperatures and Average Speeds

3-Years-Older Average Age Fleet Distribution for Light-duty Vehicles and Trucks.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	566.25	499.63	441.08	389.48	343.82	308.35	280.46	254.24	251.02	266.99
3.4	175.38	154.84	136.79	120.87	106.79	95.86	87.25	79.17	78.19	83.16
7.1	100.18	88.55	78.32	69.30	61.31	55.11	50.24	45.65	45.11	47.95
12.1	70.72	62.50	55.27	48.90	43.26	38.87	35.43	32.19	31.80	33.80
19.5	54.43	48.06	42.46	37.52	33.15	29.76	27.09	24.58	24.27	25.80
35.9	25.86	22.84	20.19	17.85	15.78	14.17	12.90	11.71	11.57	12.29

Table A.4.6. 2035 Carbon Monoxide Composite Emission Factors forMobile 6
at Different Ambient Temperatures and Average Speeds

3-Years-Older Average Age Fleet Distribution for Light-duty Vehicles and Trucks.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	111.45	99.36	88.27	78.08	68.68	61.02	54.68	49.31	50.61	56.89
3.4	37.19	33.15	29.42	25.96	22.76	20.10	17.86	15.92	16.22	18.23
7.1	26.48	23.58	20.86	18.30	15.89	13.81	11.99	10.36	10.37	11.65
12.1	22.44	19.95	17.60	15.37	13.26	11.39	9.72	8.22	8.13	9.15
19.5	20.26	17.99	15.83	13.78	11.82	10.07	8.47	7.00	6.75	7.53
35.9	19.39	17.19	15.11	13.12	11.21	9.50	7.94	6.47	6.15	6.82

Table A.5.1. 2005 Carbon Monoxide Composite Emission Factor % Change
at Different Ambient Temperatures and Average Speeds

30% Decrease in Light-duty Vehicles VMT Fraction.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	-56.89%	-56.69%	-56.57%	-56.53%	-56.57%	-56.67%	-56.81%	-56.32%	-54.23%	-51.73%
3.4	-54.49%	-54.29%	-54.21%	-54.25%	-54.45%	-54.79%	-55.26%	-55.20%	-53.35%	-50.87%
7.1	-46.16%	-45.97%	-46.02%	-46.37%	-47.05%	-48.18%	-49.75%	-50.98%	-49.77%	-47.19%
12.1	-36.46%	-36.26%	-36.43%	-37.05%	-38.20%	-40.10%	-42.72%	-45.09%	-44.22%	-41.29%
19.5	-25.49%	-25.25%	-25.51%	-26.38%	-27.98%	-30.65%	-34.36%	-37.94%	-37.45%	-34.18%
35.9	40.61%	40.66%	39.67%	37.41%	33.61%	27.69%	19.65%	12.57%	14.72%	21.85%

Table A.5.2. 2005 Carbon Monoxide Composite Emission Factors forMobile 5b
at Different Ambient Temperatures and Average Speeds

30% Decrease in Light-duty Vehicles VMT Fraction.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	531.47	469.94	415.52	367.19	324.08	289.77	262.03	235.83	232.10	248.11
3.4	163.82	144.99	128.33	113.54	100.34	89.83	81.33	73.31	72.21	77.23
7.1	93.20	82.61	73.24	64.92	57.49	51.58	46.80	42.28	41.70	44.61
12.1	65.03	57.62	51.07	45.24	40.05	35.91	32.56	29.40	28.98	30.99
19.5	49.26	43.58	38.56	34.09	30.11	26.94	24.38	21.95	21.61	23.08
35.9	24.68	21.85	19.35	17.13	15.15	13.57	12.30	11.09	10.93	11.68

Table A.5.3. 2005 Carbon Monoxide Composite Emission Factors forMobile 6
at Different Ambient Temperatures and Average Speeds

30% Decrease in Light-duty Vehicles VMT Fraction.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	229.13	203.51	180.45	159.62	140.74	125.55	113.17	103.01	106.24	119.75
3.4	74.56	66.28	58.77	51.94	45.71	40.61	36.39	32.84	33.69	37.94
7.1	50.18	44.63	39.53	34.82	30.44	26.72	23.51	20.72	20.94	23.56
12.1	41.32	36.73	32.46	28.48	24.75	21.51	18.65	16.15	16.17	18.20
19.5	36.71	32.58	28.72	25.10	21.68	18.68	16.00	13.62	13.52	15.19
35.9	34.70	30.74	27.03	23.54	20.24	17.33	14.71	12.49	12.54	14.23

Table A.5.4. 2035 Carbon Monoxide Composite Emission Factor % Change
at Different Ambient Temperatures and Average Speeds

30% Decrease in Light-duty Vehicles VMT Fraction.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	-79.65%	-79.42%	-79.26%	-79.18%	-79.20%	-79.31%	-79.48%	-79.49%	-78.71%	-77.59%
3.4	-78.17%	-77.94%	-77.82%	-77.81%	-77.93%	-78.19%	-78.58%	-78.85%	-78.18%	-77.03%
7.1	-73.04%	-72.84%	-72.82%	-73.01%	-73.46%	-74.23%	-75.32%	-76.36%	-75.98%	-74.66%
12.1	-67.77%	-67.57%	-67.63%	-68.00%	-68.74%	-69.98%	-71.71%	-73.45%	-73.29%	-71.74%
19.5	-62.22%	-61.99%	-62.10%	-62.61%	-63.61%	-65.31%	-67.67%	-70.32%	-70.83%	-69.38%
35.9	-25.28%	-24.96%	-25.35%	-26.60%	-28.87%	-32.59%	-37.71%	-43.63%	-45.38%	-43.03%

Table A.5.5. 2035 Carbon Monoxide Composite Emission Factors forMobile 5b
at Different Ambient Temperatures and Average Speeds

30% Decrease in Light-duty Vehicles VMT Fraction.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	488.10	430.56	379.91	335.15	295.44	264.19	239.23	215.72	212.22	225.69
3.4	151.88	134.10	118.45	104.62	92.34	82.68	74.97	67.70	66.64	70.86
7.1	87.56	77.44	68.53	60.64	53.65	48.14	43.75	39.61	39.02	41.46
12.1	61.94	54.77	48.46	42.87	37.91	34.01	30.90	27.97	27.54	29.26
19.5	47.59	42.03	37.12	32.79	28.95	25.92	23.50	21.23	20.89	22.19
35.9	22.98	20.30	17.95	15.86	14.01	12.56	11.40	10.30	10.14	10.77

Table A.5.6. 2035 Carbon Monoxide Composite Emission Factors forMobile 6
at Different Ambient Temperatures and Average Speeds

30% Decrease in Light-duty Vehicles VMT Fraction.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	99.31	88.60	78.79	69.76	61.44	54.67	49.09	44.24	45.18	50.57
3.4	33.16	29.58	26.28	23.22	20.38	18.03	16.06	14.32	14.54	16.27
7.1	23.61	21.04	18.63	16.37	14.24	12.40	10.80	9.37	9.37	10.51
12.1	19.96	17.76	15.69	13.72	11.85	10.21	8.74	7.43	7.36	8.27
19.5	17.98	15.97	14.07	12.26	10.53	8.99	7.60	6.30	6.09	6.79
35.9	17.17	15.24	13.40	11.64	9.97	8.47	7.10	5.81	5.54	6.14

Table A.6.1. 2005 Carbon Monoxide Composite Emission Factor % Change
at Different Ambient Temperatures and Average Speeds

30% Increase in Light-duty Vehicles VMT Fraction.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	-56.82%	-56.69%	-56.64%	-56.68%	-56.82%	-57.07%	-57.39%	-56.63%	-53.51%	-50.00%
3.4	-54.14%	-54.00%	-53.98%	-54.11%	-54.41%	-54.92%	-55.61%	-55.32%	-52.48%	-48.97%
7.1	-44.68%	-44.53%	-44.65%	-45.09%	-45.92%	-47.31%	-49.25%	-50.47%	-48.40%	-44.76%
12.1	-34.08%	-33.93%	-34.19%	-34.96%	-36.33%	-38.61%	-41.78%	-44.35%	-42.71%	-38.67%
19.5	-22.41%	-22.27%	-22.69%	-23.79%	-25.72%	-28.92%	-33.37%	-37.34%	-36.17%	-31.78%
35.9	52.64%	52.66%	51.48%	48.86%	44.48%	37.46%	27.82%	19.86%	23.52%	33.28%

Table A.6.2. 2005 Carbon Monoxide Composite Emission Factors forMobile 5b
at Different Ambient Temperatures and Average Speeds

30% Increase in Light-duty Vehicles VMT Fraction.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	512.90	453.52	400.83	353.90	311.92	278.65	251.89	226.51	222.74	237.41
3.4	157.22	139.07	122.96	108.62	95.78	85.61	77.43	69.67	68.53	73.06
7.1	88.15	78.02	69.03	61.02	53.86	48.18	43.61	39.28	38.66	41.22
12.1	61.42	54.36	48.08	42.50	37.50	33.54	30.35	27.33	26.89	28.67
19.5	46.79	41.38	36.58	32.30	28.48	25.45	23.01	20.70	20.35	21.68
35.9	22.70	20.08	17.76	15.69	13.84	12.38	11.20	10.08	9.91	10.57

Table A.6.3. 2005 Carbon Monoxide Composite Emission Factors forMobile 6
at Different Ambient Temperatures and Average Speeds

30% Increase in Light-duty Vehicles VMT Fraction.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	221.48	196.43	173.82	153.32	134.68	119.64	107.33	98.24	103.55	118.72
3.4	72.10	63.97	56.58	49.84	43.67	38.60	34.37	31.13	32.56	37.28
7.1	48.76	43.28	38.21	33.51	29.13	25.39	22.13	19.46	19.95	22.77
12.1	40.49	35.91	31.64	27.64	23.88	20.59	17.67	15.21	15.41	17.58
19.5	36.31	32.17	28.28	24.62	21.15	18.09	15.33	12.97	12.99	14.79
35.9	34.65	30.65	26.90	23.36	20.00	17.01	14.31	12.08	12.25	14.08

Table A.6.4. 2035 Carbon Monoxide Composite Emission Factor % Change
at Different Ambient Temperatures and Average Speeds

30% Increase in Light-duty Vehicles VMT Fraction.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	-79.28%	-79.12%	-79.03%	-79.04%	-79.15%	-79.39%	-79.73%	-79.83%	-78.95%	-77.66%
3.4	-77.55%	-77.39%	-77.33%	-77.40%	-77.63%	-78.03%	-78.61%	-79.00%	-78.27%	-76.95%
7.1	-71.64%	-71.49%	-71.54%	-71.84%	-72.42%	-73.41%	-74.79%	-76.10%	-75.77%	-74.32%
12.1	-65.71%	-65.58%	-65.74%	-66.25%	-67.18%	-68.73%	-70.87%	-73.05%	-73.08%	-71.44%
19.5	-59.62%	-59.50%	-59.75%	-60.47%	-61.75%	-63.85%	-66.76%	-70.01%	-70.85%	-69.38%
35.9	-17.21%	-17.07%	-17.74%	-19.41%	-22.30%	-26.96%	-33.36%	-40.74%	-43.25%	-40.77%

Table A.6.5. 2035 Carbon Monoxide Composite Emission Factors forMobile 5b
at Different Ambient Temperatures and Average Speeds

30% Increase in Light-duty Vehicles VMT Fraction.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	477.09	421.58	372.55	329.08	290.40	260.12	236.09	213.39	210.32	223.62
3.4	147.26	130.18	115.09	101.71	89.80	80.49	73.09	66.11	65.17	69.28
7.1	83.54	73.91	65.39	57.84	51.12	45.86	41.69	37.74	37.22	39.56
12.1	58.85	52.06	46.05	40.73	36.00	32.29	29.35	26.57	26.20	27.84
19.5	45.31	40.06	35.42	31.30	27.64	24.77	22.50	20.35	20.05	21.31
35.9	21.21	18.75	16.58	14.66	12.95	11.61	10.55	9.54	9.41	10.00

Table A.6.6. 2035 Carbon Monoxide Composite Emission Factors forMobile 6
at Different Ambient Temperatures and Average Speeds

30% Increase in Light-duty Vehicles VMT Fraction.

**Temperature in Degree F**
Speed(mph)	0	10	20	30	40	50	60	70	80	90
Idle	98.85	88.05	78.13	68.99	60.55	53.62	47.87	43.05	44.28	49.95
3.4	33.06	29.44	26.09	22.98	20.09	17.68	15.63	13.88	14.16	15.97
7.1	23.70	21.07	18.61	16.29	14.10	12.19	10.51	9.02	9.02	10.16
12.1	20.18	17.92	15.78	13.75	11.81	10.10	8.55	7.16	7.05	7.95
19.5	18.30	16.22	14.25	12.37	10.57	8.95	7.48	6.10	5.85	6.53
35.9	17.56	15.55	13.64	11.81	10.06	8.48	7.03	5.66	5.34	5.92

Figure A.1.1. 2005 Carbon Monoxide Composite Emission Factor % Change
at Different Ambient Temperatures and Average Speeds

Base Case with I/M Program

This chart depicts the percentage change in emission factors for speeds between 0 and 40 mph, for temperatures between 0 and 90 degrees F. The chart illustrates a larger negative change at low speeds, and a higher positive change at higher speeds, at all temperatures.

Figure A.1.2. 2005 Carbon Monoxide Composite Emission Factor (g/mi) forMobile 5b
at Different Ambient Temperatures and Average Speeds

Base Case with I/M Program

This chart depicts the emission factor for speeds between 0 and 40 mph, for temperatures between 0 and 90 degrees F. The chart illustrates a higher emissions factor at low speed that falls off steeply at less than 5 mph, than continues falling at a lower rate at higher speeds, at all temperatures.

Figure A.1.3. 2005 Carbon Monoxide Composite Emission Factor forMobile 6 (g/mi)
at Different Ambient Temperatures and Average Speeds. Base Case with I/M Program

Figure A.1.4. 2035 Carbon Monoxide Composite Emission Factor % Change
at Different Ambient Temperatures and Average Speeds

Base Case with I/M Program.=

This chart depicts the percentage change in emission factors for speeds between 0 and 40 mph, for temperatures between 0 and 90 degrees F. The chart illustrates a larger negative change at low speeds, but still a negative change at higher speeds, at all temperatures.

Figure A.1.5. 2035 Carbon Monoxide Composite Emission Factor (g/mi) forMobile 5b
at Different Ambient Temperatures and Average Speeds

Base Case with I/M Program

Figure A.1.6. 2035 Carbon Monoxide Composite Emission Factor (g/mi) forMobile 6
at Different Ambient Temperatures and Average Speeds

Base Case with I/MProgram

Figure A.2.1. 2005 Carbon Monoxide Composite Emission Factor % Change
at Different Ambient Temperatures and Average Speeds

Without I/M Program.

Figure A.2.2. 2005 Carbon Monoxide Composite Emission Factor (g/mi) forMobile 5b
at Different Ambient Temperatures and Average Speeds

Without I/M Program.

Figure A.2.3. 2005 Carbon Monoxide Composite Emission Factor (g/mi) forMobile 6
at Different Ambient Temperatures and Average Speeds

Without I/M Program.

Figure A.2.4. 2035 Carbon Monoxide Composite Emission Factor % Change
at Different Ambient Temperatures and Average Speeds

Without /M Program

This chart depicts the percentage change in emission factors for speeds between 0 and 40 mph, for temperatures between 0 and 90 degrees F. The chart illustrates a larger negative change at low speeds, but still a negative change at higher speeds, at all temperatures.

Figure A.2.5. 2035 Carbon Monoxide Composite Emission Factor (g/mi) forMobile 5b
at Different Ambient Temperatures and Average Speeds

Without I/M Program.

Figure A.2.6. 2035 Carbon Monoxide Composite Emission Factor (g/mi) forMobile 6
at Different Ambient Temperatures and Average Speeds

Without I/M Program.

Figure A.3.1. 2005 Carbon Monoxide Composite Emission Factor % Change
at Different Ambient Temperatures and Average Speeds

3 Years Newer Average Age Fleet Distribution

Figure A.3.2. 2005 Carbon Monoxide Composite Emission Factor (g/mi) forMobile 5b
at Different Ambient Temperatures and Average Speeds

3 Years Newer Average Age Fleet

Figure A.3.3. 2005 Carbon Monoxide Composite Emission Factor (g/mi) forMobile 6
at Different Ambient Temperatures and Average Speeds

3 Years Newer Average Age Fleet

Figure A.3.4. 2035 Carbon Monoxide Composite Emission Factor % Change
at Different Ambient Temperatures and Average Speeds

3 Years Newer Average Age Fleet.

This chart depicts the percentage change in emission factors for speeds between 0 and 40 mph, for temperatures between 0 and 90 degrees F. The chart illustrates a larger negative change at low speeds, but still a negative change at higher speeds, at all temperatures.

Figure A.3.5. 2035 Carbon Monoxide Composite Emission Factor (g/mi) forMobile 5b
at Different Ambient Temperatures and Average Speeds

3 Years Newer Average Age Fleet.

Figure A.3.6. 2035 Carbon Monoxide Composite Emission Factor (g/mi) forMobile 6
at Different Ambient Temperatures and Average Speeds

3 Years Newer Average Age Fleet.

Figure A.4.1. 2005 Carbon Monoxide Composite Emission Factor % Change
at Different Ambient Temperatures and Average Speeds

3 Years Older Average Age Fleet.

Figure A.4.2. 2005 Carbon Monoxide Composite Emission Factor (g/mi) forMobile 5b
at Different Ambient Temperatures and Average Speeds

3 Years Older Average Age Fleet.

Figure A.4.3. 2005 Carbon Monoxide Composite Emission Factor (g/mi) forMobile 6
at Different Ambient Temperatures and Average Speeds

3 Years Older Average Age Fleet.

Figure A.4.4. 2035 Carbon Monoxide Composite Emission Factor % Change
at Different Ambient Temperatures and Average Speeds

3 Years Older Average Age Fleet.

This chart depicts the percentage change in emission factors for speeds between 0 and 40 mph, for temperatures between 0 and 90 degrees F. The chart illustrates a larger negative change at low speeds, but still a negative change at higher speeds, at all temperatures.

Figure A.4.5. 2035 Carbon Monoxide Composite Emission Factor (g/mi) forMobile 5b
at Different Ambient Temperatures and Average Speeds

3 Years Older Average Age Fleet..

Figure A.4.6. 2035 Carbon Monoxide Composite Emission Factor (g/mi) forMobile 6
at Different Ambient Temperatures and Average Speeds

3 Years Older Average Age Fleet.