Highway Statistics 2021

User's Guide

1. Executive Summary

2. Introduction (PS-1)

2.1. Selected measures for identifying peer states

PS-1

3. Bridges

3.1. Overview
3.2. National tables
3.2.1. Bridges by Wearing Surface	BR-3
3.2.2. Bridge by Year Built	BR-4
3.2.3. Count, Area, Length of Bridges by Highway System	BR-5
3.2.4. Highway Bridge by Owner	BR-6
3.2.5. Material Type of Structure by State	BR-7
3.2.6. Count of Bridges by Structure Type	BR-8

4. Highway Infrastructure

4.1. Overview
4.2. Multi-year trends & charts
4.2.1. Public Road Mileage and VMT, 1920 - 2020 - Chart	VMT-421C
4.2.2. Public Road Mileage, Lane Miles and VMT, 1980 - 2021 - Chart	VMT-422C
4.2.3. Public road mileage by functional system, 1980 - 2021	HM-220
4.2.4. Public road lane-miles by functional system, 1980 - 2021	HM-260
4.3. National tables
4.3.1. Public road length by type of surface and ownership/functional system	HM-12
4.3.2. Public road length by ownership and Federal-aid highways	HM-16
4.3.3. Public road length by functional system and Federal-aid highways	HM-18
4.3.6. Functional system length by lane width, access control, and average daily traffic volume	HM-59
4.4. State tables
4.4.1. Public roads
4.4.1.1. Length by ownership	HM-10
4.4.1.2. Length by functional system	HM-20
4.4.1.3. Length by functional system and ownership	HM-50
4.4.1.4. Estimated lane-miles by functional system	HM-60
4.4.2. Federal-aid Highway System
4.4.2.1. Length by ownership	HM-14
4.4.2.2. Length by functional system	HM-15
4.4.2.6. Estimated lane-miles	HM-48
4.4.3. National Highway System
4.4.3.1. Length by open and not open to traffic	HM-30
4.4.3.2. Length by ownership	HM-40
4.4.3.3. Length by functional system	HM-41
4.4.3.4. Lane-miles by functional system	HM-43
4.4.3.5. Strategic Highway Network (STRAHNET) length	HM-49
4.4.4. Arterial and Collectors
4.4.4.1. Length by type of surface	HM-51
4.4.4.2. Length by lane width	HM-53
4.4.4.3. Length by traffic lanes and access control	HM-55
4.4.5. Urbanized area summaries
4.4.5.1. Length and daily vehicle-miles of travel	HM-71
4.4.5.2. Selected characteristics	HM-72
4.4.6. State highway agency-owned public roads
4.4.6.1. Estimated length by functional system	HM-80
4.4.6.2. Estimated lane-miles	HM-81

5. Highway Travel

5.1. Overview
5.2. Multi-year trends & charts
5.2.1 Vehicle-miles of travel, by functional system, 1980-2021	VM-202	Excel	PDF
5.3. National tables
5.3.1. Vehicle miles of travel and related data, by highway category and vehicle type	VM-1	Excel	PDF
5.4. State tables
5.4.1. Vehicle-miles of travel, by functional system	VM-2	Excel	PDF
5.4.2. Vehicle-miles of travel, by Federal-aid highways	VM-3	Excel	PDF
5.4.3. Distribution of Annual Vehicle Distance Traveled	VM-4	Excel	PDF
5.4.4. Vehicle miles of travel by functional system	HM-44
5.4.5. Length by average daily traffic volume, Federal-aid highways	HM-37
5.4.6. Length by average daily traffic volume, Arterials and Collectors	HM-57

6. Travelers (or System Users)

6.1. Overview
6.2. Multi-year trends & charts
6.2.1. Licensed drivers, vehicle registrations, and resident population - Chart	DV-1C	Excel	PDF
6.2.2. Licensed drivers, by State, 1949-2021	DL-201	Excel	PDF
6.2.3. Licensed drivers by sex and age group, 1963-2021	DL-220	Excel	PDF
6.3. State tables
6.3.1. Licensed drivers--Ratio of licensed drivers to population	DL-1C	Excel	PDF
6.3.2. Licensed drivers, by sex and percentage in each age group	DL-20	Excel	PDF
6.3.3. Licensed drivers, by State, sex, and age group	DL-22	Excel	PDF

7. Vehicles

7.1. Overview
7.2. National tables
7.2.1. Vehicle registrations, fuel consumption, and vehicle miles of travel - Chart	RC-1C
7.3. State tables
7.3.1. State motor-vehicle registrations Published: February 2023 | Revised: March 2023	MV-1	Excel	PDF
7.3.2. Publicly owned vehicles	MV-7	Excel	PDF
7.3.3. Truck and truck-tractor registrations	MV-9
7.3.4. Bus registrations	MV-10	Excel	PDF
7.3.5. Trailer and semi-trailer registrations (temporarily suspended)	MV-11
7.3.6. State motor-vehicle and motor-carrier tax receipts (temporarily suspended)	MV-2
7.3.7. Disposition of State motor-vehicle and motor-carrier tax receipts	MV-3

8. Motor Fuel

8.1. Overview
8.2. Multi-year trends & charts
8.2.1. Federal excise tax rates on motor fuels and lubricating oil	FE-101A	Excel	PDF
8.2.2. Federal excise tax rates on motor vehicles and related products	FE-101B	Excel	PDF
8.2.3. State tax rates on motor fuel 2003-2021	MF-205	Excel	PDF
8.2.4. State motor fuel tax receipts 1961-2021	MF-201	Excel	PDF
8.2.5. Net volume taxed (in gallons) 1961-2021	MF-202C	Excel	PDF
8.2.6. Net motor-fuel volume taxed, by State, 1950-2021	MF-202	Excel	PDF
8.2.7. Private and commercial highway use of special fuel, by State, 1949-2021	MF-225	Excel	PDF
8.2.8. Highway use of gasoline, by State, 1949-2021	MF-226	Excel	PDF
8.3. National tables
8.3.1. Federal highway user fees	FE-21B	Excel	PDF
8.3.2. Highway use of motor fuel - 2021	MF-27	Excel	PDF
8.3.3. Special fuel as a percent of total highway use of motor fuel - Chart	MF-23C	Excel	PDF
8.4. State tables
8.4.1. Motor-fuel volume taxed by States	MF-2	Excel	PDF
8.4.2. Motor-fuel use	MF-21	Excel	PDF
8.4.3. Non-highway use of gasoline	MF-24
8.4.4. Monthly gasoline reported by States	MF-33GA	Excel	PDF
8.4.5. Monthly special fuel reported by State	MF-33SF	Excel	PDF
8.4.6. State tax rates on motor fuel	MF-121T	Excel	PDF
8.4.7. State motor-fuel taxes and related receipts	MF-1	Excel	PDF
8.4.8. Disposition of State motor-fuel tax receipts	MF-3

9. Revenue

9.1. Overview
9.2. Multi-year trends & charts
9.2.1. Net Revenues to the Federal Highway Trust Fund 1970 - 2021	FE-201
9.2.2. Status of the Federal Highway Trust Fund 1957-2021 - Chart	FE-210C	Excel	PDF
9.2.3. Status of the Federal Highway Trust Fund 1957-2021	FE-210	Excel	PDF
9.3. National tables
9.3.1. Funding for highways and disposition of highway-user revenues	HF-10	Excel	PDF
9.3.2. Funding for highways and disposition of highway-user revenues	HF-10A
9.3.3. Total receipts for highways, by governmental unit - Chart	REC-C	Excel	PDF
9.3.4. Status of the Federal Highway Trust Fund - 2021	FE-10	Excel	PDF
9.4. State tables
9.4.1. Disposition of receipts from highway user taxes and tolls	HDF	Excel	PDF
9.4.2. Revenues used for highways, all units of government	HF-1	Excel	PDF
9.4.3. Federal Highway Trust Fund receipts attributable to highway users in each State	FE-9	Excel	PDF
9.4.4. Comparison of Federal Highway Trust Fund receipts attributable to the States and Federal-aid apportionments and allocations from the highway account	FE-221	Excel	PDF
9.4.5. Federal Highway Trust Fund Highway Account receipts attributable to the States and Federal-Aid apportionments and allocations from the highway account	FE-221B	Excel	PDF
9.4.6. Disposition of receipts from State and highway-user imposts, including tolls	SDF
9.4.7. Revenues used by States for highways	SF-1
9.4.8. Revenues used by States for State-administered highways	SF-3
9.4.9. Receipts of State-administered toll road and crossing facilities	SF-3B
9.4.10. Disposition of receipts from State imposts on highway users	DF
9.4.11. Summary state funding for highways	SF-21	Excel	PDF
9.4.12. Summary state funding for highways - Chart	SF-21C	Excel	PDF
9.5. Local tables
9.5.1. Receipts of local toll facilities	LGF-3B	Excel	PDF
9.5.2. Disposition of local government receipts from State and local highway-user imposts, including tolls	LDF	Excel	PDF
9.5.3. Summary local government funding for highways	LGF-21	Excel	PDF
9.5.4. Revenues used by local governments for highways	LGF-1	Excel	PDF

10. Debt Obligations for Highways

10.1. Overview
10.2. Multi-year trends & charts
10.3. National tables
10.3.1. Long-term highway obligations for all units of government	HB-2	Excel	PDF
10.4. State tables
10.4.1. State Obligations for Highway (total), issued or assumed during year	SB-1
10.4.2. Change in indebtedness, state highways	SB-2
10.4.3. Change in indebtedness, local highways	SB-2L
10.4.4. Change in indebtedness, toll roads and crossings	SB-2T
10.4.5. Funding for debt service, state highways	SB-3
10.4.6. Funding for debt service, local highways	SB-3L
10.4.7. Funding for debt service, toll roads and crossings	SB-3T
10.5. Local tables
10.5.1. Change in indebtedness, local highways	LGB-2	Excel	PDF
10.5.2. Change in indebtedness, local toll facilities	LGB-2T	Excel	PDF

11. Apportionments, Obligations, and Expenditures

11.1. Overview
11.2. Multi-year trends & charts
11.2.1. Highway expenditures, all units of government, current and constant dollars - Chart	PT-3C
11.2.2. Total disbursements for highways, by governmental units - Chart	DISB-C	Excel	PDF
11.2.3. Obligation of Federal Funds for Roadway Projects - Chart	FAPIE-2	Excel	PDF
11.2.4. Obligation of Federal Funds for Roadway Projects by Improvement Type - Chart	FAPIE-4	Excel	PDF
11.2.5. Price trends for Federal-aid highway construction - Chart	PT-1
11.2.6. Average distribution of costs on contracts completed - Chart	PT-2
11.2.7. Federal Share of Capital Expenditures, by state - Map	HF-202FS
11.3. National tables
11.3.1. Highway apportionment formulas	FA-4A
11.3.2. Receipts and expenditures for highways by Federal agencies-Summary	FA-5	Excel	PDF
11.3.3. Obligation of National Highway System and Surface Transportation Program funds by system and improvement type	FA-6
11.3.4. Obligation on National Highway System and total funds for all systems by functional and improvement type	FA-6A	Excel	PDF
11.3.5. Obligation of Federal-aid highway funds by functional system and improvement type	FA-10
11.4. State tables
11.4.1. Apportionments and allocations
11.4.1.1. Federal-aid highway fund apportionments	FA-4	Excel	PDF
11.4.2. Obligations
11.4.2.1. Obligation of Federal-aid highway funds	FA-4B	Excel	PDF
11.4.2.2. Obligation of Federal-aid highway funds by functional system	FA-4C	Excel	PDF
11.4.2.3. Uses of Surface Transportation Program funds for projects not on the National Highway System (by improvement category)	STP-1	Excel	PDF
11.4.2.4. Uses of Surface Transportation Program funds for projects not on the National Highway System (by functional system)	STP-1A	Excel	PDF
11.4.3. Expenditures
11.4.3.1. Total disbursements for highways, all units of government	HF-2	Excel	PDF
11.4.3.2. Expenditure of Federal funds administered by the Federal Highway Administration	FA-3	Excel	PDF
11.4.3.3. Disbursements by States for highways	SF-2
11.4.3.4. Disbursements by States for State-administered highways	SF-4
11.4.3.5. Disbursements by States for State-administered, classified by function	SF-4C
11.4.3.6. State capital outlay and maintenance, classified by functional system and area	SF-12	Excel	PDF
11.4.3.7. State capital outlay and maintenance, classified by improvement type	SF-12A	Excel	PDF
11.4.3.8. State capital outlay and maintenance, classified by Federal-aid system	SF-12B	Excel	PDF
11.4.3.9. Disbursements of State toll road and crossing facilities	SF-4B
11.4.3.10. Disbursements of local toll facilities	LGF-4B	Excel	PDF
11.5. Local tables
11.5.1. Disbursements by local governments for highways	LGF-2	Excel	PDF
11.5.2. Funding for State grants-in-aid for local roads and streets	SF-5A
11.5.3. State expenditures and grants-in-aid for local roads and streets	SF-6

12. Conditions and Safety

12.1. Overview
12.2. Multi-year trends & charts
12.2.1. Motor vehicle traffic fatalities (1900 - 2020)	FI-200
12.2.2. Summary of persons fatally injured in motor vehicle crashes, by Federal-aid highways	FI-210
12.2.3. Summary of persons fatally injured in motor vehicle crashes, by Functional system	FI-220
12.3. National tables
12.3.1. Fatality rate per 100 million annual VMT by Functional system	FI-30
12.4. State tables
12.4.1. Length by present serviceability rating (pavement condition)/measured pavement roughness—Major Collectors and Urban Minor Arterials and Collectors	HM-63
12.4.2. Length by measured pavement roughness—All Principal Arterials and rural Minor Arterials	HM-64
12.4.3. Pavement roughness details	HM-66
12.4.4. Miles by Measured Pavement Roughness	HM-47B
12.4.5. Miles by Measured Pavement Rutting (Inches)	HM-47C
12.4.6. Miles by Measured Pavement Faulting (Inches)	HM-47D
12.4.7. Miles by Measured Pavement Cracking Percent	HM-47E
12.4.8. Miles by Measured Pavement Rutting (Inches)	HM-47F
12.4.9. Miles by Measured Faulting Faulting (Inches)	HM-47G
12.4.10. Miles by Measured Pavement Cracking Percent	HM-47H
12.4.11. Miles by Measured Pavement Roughness / Present Serviceability Rating	HM-47I
12.4.12. Persons fatally injured in motor vehicle crashes, by Federal-aid highways	FI-10
12.4.13. Persons fatally injured in motor vehicle crashes, by Functional system	FI-20
12.5. Urbanized area summaries
12.5.1. Functional system length, miles by measured pavement roughness / present serviceability rating	HM-73
12.5.2. Functional system travel, daily vehicle - miles of travel by measured pavement roughness / present serviceability rating	HM-74

13. Performance Indicators

13.1. Overview
13.2. Multi-year trends & charts
13.2.1. System travel density trends (weighted average AADT per lane) - Chart	TC-201C
13.3. State tables
13.3.1. Length by volume-service flow ratio, NHS	HM-42
13.3.2. Length by measured pavement roughness, NHS	HM-47
13.3.3. Daily travel by measured pavement roughness, NHS	HM-47A
13.3.4. Length by volume-service flow ratio, all functional systems	HM-61
13.3.5. Weighted average daily traffic per lane	HM-62

14. International and Metric

14.1. Overview
14.2. International Tables
14.2.1. Motor Fuel Tax Rates for Selected Countries	IN-1	Excel	PDF
14.2.2. Social and Demographic Characteristics for Selected Countries	IN-2
14.2.3. Road System Measures for Selected Countries (Metric)	IN-3
14.2.4. Transportation Indicators for Selected Countries (Metric)	IN-4
14.2.5. Vehicle Travel by Selected Country (Metric)	IN-5
14.3. Metric Tables
14.3.1. Public road length by type of surface and ownership/functional system (metric)	HM-12M
14.3.2. Public road length by ownership and Federal-aid highways (metric)	HM-16M
14.3.3. Public road length by functional system and Federal-aid highways (metric)	HM-18M
14.3.4. Federal-aid length by traffic lanes and access control (metric)	HM-36M
14.3.5. Length by ownership (metric)	HM-10M
14.3.6. Length by functional system (metric)	HM-20M
14.3.7. Length by functional system and ownership (metric)	HM-50M
14.3.8. Estimated lane-miles by functional system (metric)	HM-60M
14.3.9. Length by ownership (metric)	HM-14M
14.3.10. Length by functional system (metric)	HM-15M
14.3.11. Length by open and not open to traffic (metric)	HM-30M
14.3.12. Vehicle-miles of travel, by Federal-aid highways (metric)	VM-1M
14.3.13. Vehicle-miles of travel, by Federal-aid highways (metric)	VM-2M	Excel	PDF
14.3.14. Vehicle-miles of travel, by functional system (metric)	VM-3M	Excel	PDF
14.3.15. Motor-fuel use (metric)	MF21-M

15. Footnotes

16. Glossary

17. Appendices

17.1. Appendix A: Original Tables (original format for modified tables)
17.2. Appendix B: Discontinued Tables
17.2.1. Revenues used by States for local roads and streets	SF-5
17.2.2. Receipts and expenditures for highways by Federal agencies-summary 2007 revised	FA-5R
17.2.3. Summary receipts and expenditures for highways	FA-21
17.2.4. Selected data used in apportionments for Fiscal Year 2014	FA-4E
17.2.5. Federal-aid highway fund allocations	FA-4D
17.2.6. Growth in volumes and loadings on the Interstate system - Chart	TC-202C
17.2.7. Federal-aid length by traffic lanes and access control	HM-36
17.2.8. Federal-aid length by lane width, access control, and average daily traffic volume	HM-39
17.2.9. Tolled Roadway Length	HM-25
17.2.10. Length by type of surface	HM-31
17.2.11. Length by lane width	HM-33
17.2.12. Length by traffic lanes and access control	HM-35
17.2.13. Vehicle-miles of travel, by Federal-aid highways, 1957-2012	VM-203
17.2.14. Summary Statistics on Demographic Characteristics and Total Travel 1969,1977,1983,1990, 1995 NPTS and 2001 NHTS	NT-1
17.2.15. Changes in Travel Demand, 1969-2001	NT-2
17.2.16. Number of Vehicle Trips by Time of Day	NT-3
17.2.17. Number of Weekday Workers by Chain Type	NT-4
17.2.18. Average Vehicle Trip Lengths	NT-5
17.2.19. Household-Based Fleet Characteristics	NT-6
17.2.20. Funding for direct State mass transit activities	MT-1A
17.2.21. Funding for State grants-in-aid for mass transit	MT-1B