Table of Contents

Highway Performance Monitoring System Field Manual

for the Continuing Analytical and Statistical Database

Appendix C - Volume Groups and Precision Levels

Table C-1. Standard Sample Volume Groups and Precision Levels
RURAL AREAS
AADT Volume Group	Interstate	Other Principal Arterial	Minor Arterial	Major Collector
AADT Volume Group	(90-5)	(90-5)	(90-10)	(80-10)
01 02 03 04 05 06 07 08 09 10 11 12 13	0- 9,999 10,000- 19,999 20,000- 29,999 30,000- 39,999 40,000- 49,999 50,000- 59,999 60,000- 69,999 70,000- 79,999 80,000- 89,999 90,000-104,999 105,000-119,999 120,000-134,999 > or = 135,000	0- 4,999 5,000- 9,999 10,000- 14,999 15,000- 19,999 20,000- 29,999 30,000- 39,999 40,000- 49,999 50,000- 59,999 60,000- 69,999 70,000- 84,999 85,000- 99,999 100,000-114,999 > or = 115,000	0- 2,499 2,500- 4,999 5,000- 9,999 10,000-19,999 20,000-29,999 30,000-39,999 40,000-49,999 50,000-59,999 60,000-69,999 70,000-79,999 80,000-89,999 90,000-99,999 > or = 100,000	0- 2,499 2,500- 4,999 5,000- 9,999 10,000-19,999 20,000-29,999 30,000-39,999 40,000-49,999 50,000-59,999 60,000-69,999 70,000-79,999 80,000-89,999 90,000-99,999 > or = 100,000

Table C-2. Standard Sample Volume Groups and Precision Levels
SMALL URBAN AREAS
AADT Volume Group	Interstate	Other Freeways and Expressways	Other Principal Arterial	Minor Arterial	Collector
AADT Volume Group	(90-5)	(90-5)	(90-5)	(90-10)	(80-10)
01 02 03 04 05 06 07 08 09 10 11 12 13	0- 9,999 10,000- 19,999 20,000- 29,999 30,000- 39,999 40,000- 49,999 50,000- 59,999 60,000- 69,999 70,000- 79,999 80,000- 89,999 90,000-104,999 105,000-119,999 120,000-134,999 > or = 135,000	0- 9,999 10,000- 19,999 20,000- 29,999 30,000- 39,999 40,000- 49,999 50,000- 59,999 60,000- 69,999 70,000- 79,999 80,000- 89,999 90,000-104,999 105,000-119,999 120,000-134,999 > or = 135,000	0- 4,999 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 45,000-54,999 55,000-64,999 65,000-74,999 > or = 75,000	0- 2,499 2,500- 4,999 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 40,000-49,999 50,000-59,999 60,000-69,999 > or = 70,000	0- 999 1,000- 1,999 2,000- 4,999 5,000- 9,999 10,000-14,999 15,000-19,999 20,000-24,999 25,000-29,999 30,000-34,999 35,000-44,999 45,000-54,999 55,000-64,999 > or = 65,000

Table C-3. Standard Sample Volume Groups and Precision Levels
For URBANIZED AREAS <200,000 Population that are NOT in NAAQS Nonattainment or Maintenance Areas
AADT Volume Group	Interstate	Other Freeways and Expressways	Other Principal Arterial	Minor Arterial	Collector
AADT Volume Group	(80-10)	(80-10)	(80-10)	(90-10)	(80-10)
01 02 03 04 05 06 07 08 09 10 11 12 13	0- 24,999 25,000- 49,999 50,000- 74,999 75,000- 99,999 100,000-124,999 125,000-149,999 150,000-174,999 175,000-199,999 200,000-224,999 225,000-249,999 250,000-274,999 275,000-299,999 > or = 300,000	0- 24,999 25,000- 49,999 50,000- 74,999 75,000- 99,999 100,000-124,999 125,000-149,999 150,000-174,999 175,000-199,999 200,000-224,999 225,000-249,999 250,000-274,999 275,000-299,999 > or = 300,000	0- 2,499 2,500- 4,999 5,000- 9,999 10,000-14,999 15,000-19,999 20,000-24,999 25,000-34,999 35,000-44,999 45,000-54,999 55,000-69,999 70,000-84,999 85,000-99,999 > or = 100,000	0- 2,499 2,500- 4,999 5,000- 9,999 10,000-14,999 15,000-19,999 20,000-24,999 25,000-34,999 35,000-44,999 45,000-54,999 55,000-69,999 70,000-84,999 85,000-99,999 > or = 100,000	0- 999 1,000- 1,999 2,000- 4,999 5,000- 9,999 10,000-14,999 15,000-24,999 25,000-34,999 35,000-44,999 45,000-54,999 55,000-69,999 70,000-84,999 85,000-99,999 > or = 100,000

Table C-4. Standard Sample Volume Groups and Precision Levels
For URBANIZED AREAS >200,000 Population and Smaller Urbanized Areas that ARE in NAAQS Nonattainment or Maintnance Areas
AADT Volume Group	Interstate	Other Freeways and Expressways	Other Principal Arterial	Minor Arterial	Collector
AADT Volume Group	(90-10)	(90-10)	(90-10)	(90-10)	(80-10)
01 02 03 04 05 06 07 08 09 10 11 12 13	0- 24,999 25,000- 49,999 50,000- 74,999 75,000- 99,999 100,000-124,999 125,000-149,999 150,000-174,999 175,000-199,999 200,000-224,999 225,000-249,999 250,000-274,999 275,000-299,999 > or = 300,000	0- 24,999 25,000- 49,999 50,000- 74,999 75,000- 99,999 100,000-124,999 125,000-149,999 150,000-174,999 175,000-199,999 200,000-224,999 225,000-249,999 250,000-274,999 275,000-299,999 > or = 300,000	- 2,499 2,500- 4,999 5,000- 9,999 10,000-14,999 15,000-19,999 20,000-24,999 25,000-34,999 35,000-44,999 45,000-54,999 55,000-69,999 70,000-84,999 85,000-99,999 > or = 100,000	0- 2,499 2,500- 4,999 5,000- 9,999 10,000-14,999 15,000-19,999 20,000-24,999 25,000-34,999 35,000-44,999 45,000-54,999 55,000-69,999 70,000-84,999 85,000-99,999 > or = 100,000	0- 999 1,000- 1,999 2,000- 4,999 5,000- 9,999 10,000-14,999 15,000-24,999 25,000-34,999 35,000-44,999 45,000-54,999 55,000-69,999 70,000-84,999 85,000-99,999 > or = 100,000

Table C-5. Donut Area Sample Volume Groups and Precision Levels
For DONUT AREAS of NAAQS Nonattainment or Maintenance Areas (Small Urban and Rural Systems, Combined)
AADT Volume Group	Minor Arterial	Major Collector, Collector
AADT Volume Group	(90-10)	(90-10)
1 2 3 4 5	0- 2,499 2,500- 4,999 5,000- 9,999 10,000-14,999 > or = 15,000	0- 2,499 2,500- 4,999 5,000- 9,999 10,000-14,999 > or = 15,000

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