Featuring developments in Federal highway policies, programs, and research and technology.
|This magazine is an archived publication and may contain dated technical, contact, and link information.|
|Federal Highway Administration > Publications > Public Roads > Vol. 58· No. 1 > Highway Finance: Past, Present, and Future|
Highway Finance: Past, Present, and Future
by Germaine Williams and Tom Howard
The current finance structure for highways is not producing the funds needed to meet the country's requirements for highway investment. Evidence for this is found by comparing recent trends in highway finance and the annual investment required to maintain the current level of highway system performance. Any adjustments to the existing financing structure should be based on a systematic re-evaluation of all available highway finance options.
Recent Trends in Highway Financing
In 1991, all levels of government combined spent $74.9 billion to construct, maintain, and operate the U.S. highway system. To put this into perspective, direct outlays for transportation by passenger and freight users of the transportation system were $969 billion in 1990. (See figure 1.) Of this, the direct outlays of highway users--including vehicle costs and operating expenses for private automobiles, bus and transit, taxis, and trucks--were estimated at $828 billion.
Funding for highways comes from all levels of government. In 1991, the state and local levels of government provided 78 percent of all funding for highways and 59 percent of the funding for capital outlays, with the federal government providing the remaining funds, almost exclusively for capital.
The following highlights characterize 1991 highway finance sources and trends (see figure 2):
A more historical perspective is reflected in the following points:
How Much Additional Funding Is Needed?
Based on estimates published in the 1993 Conditions and Performance Report, $51.6 billion need to be invested annually for the next 20 years to maintain the current conditions and performance of the highway infrastructure. This, however, is only part of the picture. Investment estimates in the Conditions and Performance Report include only those capital investments related to the physical condition of roads and bridges, and it contains no estimate of noncapital spending requirements.
If it is assumed that the level of expenditure for off-road capital and noncapital highway spending should be at least comparable to their 1991 level for the next 20 years, an additional $42 billion in 1991 dollars should be added to the annual investment needed over the next 20 years. This is a conservative assumption since maintenance expenses tend to increase as the system ages, and the Conditions and Performance Report's estimated investment requirements for highway and bridge capital improvements assume that some of the demand for increased highway capacity will be met by improved management of the system, i.e., transportation demand management.</<br>
The combined total of capital and noncapital spending required to maintain conditions and performance at their 1991 level--$93.6 billion--is $19.1 billion more than was actually spent in 1991. To continuing to maintain the 1991 level of support for the highway system and to provide the increase in funding needed to actually maintain the current level of performance, the current level of funding--$74.5 billion--will need to increase annually to keep up with inflation, and an additional $19.1 billion in real dollars is needed every year to raise the annual expenditure to the level needed to prevent further deterioration in system performance.
Table 1 -- Highway revenue sources, 1991
Grand total receipts: $82.4 billion
Options for Increasing Highway Revenues
The above argues that the current highway financing system is not sufficient to meet current requirements and that it is necessary to systematically examine all possible options to meet this financial shortfall. The range of possible revenue sources can be grouped as follows:
Increase highway user revenues
Highway user revenues comprise more than 60 percent of total highway revenues. In 1991, these fees accounted for more than $50.3 billion of the $82.4 billion raised for highways. (See Table 1.) These receipts were collected at the federal, state, and local levels.
The overwhelming majority of all highway user revenues (94 percent, or $47.2 billion, in 1991) are raised from motor fuel taxes. About $3.1 billion, or 6 percent, of highway user revenues were derived from tolls in 1991.
Increasing these highway user charges represents one option for increasing highway financing. For example, federal legislation enacted in 1993 will redirect 2.5 cents of federal motor fuel taxes from deficit reduction to surface transportation use beginning in 1995. Also, 17 states increased their gasoline tax rates, and 16 states increased diesel fuel tax rates in 1993.
Most agree that user taxes are the fairest taxes because the consumer pays for use. However, as previously noted, the highway user tax base has not been producing revenue increases quickly enough.
Increase other taxes and fees
In 1991, other taxes and fees comprised about $19.1 billion, or 23 percent, of highway receipts. These revenues were collected from property assessments, general fund appropriations, and other taxes and fees.
Property taxes and assessments, which are collected exclusively at the local level, totaled $4.5 billion in 1991. Federal general funds primarily represent non-Highway Trust funds appropriated by Congress to the Federal Highway Administration (FHWA) and other federal agencies. State and local general funds include appropriations from state and local governments to transportation agencies. In 1991, $12.0 billion was raised from federal, state, and local general fund appropriations. Other taxes and fees accounted for the remaining $2.7 billion of these revenues; these are collected primarily at the state and local levels and consist of taxes on severance, personal property, income, and sales.
These revenue instruments are used primarily at the local level for raising revenue. However, taxpayers have resisted increases in property taxes, even though the demand for local government services has also increased. This pressure may limit the potential for property tax increases to finance highway improvements.
Make fullest use of investment income and other receipts
Investment income results from the investment of those highway cash balances not needed to pay current bills. These balances may be invested in interest-producing markets. Other receipts include miscellaneous fees and funds.
The income resulting from these investments and receipts is available as an additional source of funds. The Federal Highway Trust Fund is an example of such a source. In 1991, the Highway Account of the Highway Trust Fund realized $0.8 billion from its investments.
The use of investment income represents another option for increasing highway financing. While investment income is important, several factors limit its potential as a major highway revenue option. Decreases in interest rates and the declining balances on which interest is earned are among those factors that reduce investment income.
Increase bond issue proceeds
Bonds and other debt instruments provide capital funding for highways. In 1991, bond issue proceeds reached $6.9 billion.
Bond issuance may be further increased by federal backing of state and local highway issuances. For example, Vice President Gore's National Performance Review calls for a change to current law that would allow states to use their federal funds as capital reserves to back debt financing. (2) These credit-enhancing capital reserves potentially increase issuers' bond ratings and reduce borrowing costs. Private bond insurance, which guarantees lenders and bond-holders that they will be repaid in the event of default by the issuing authority, is now used by many state and local issuers of highway bonds to reduce interest costs.
Although increased issuance of state and local bonds would enhance current revenues, this debt would have to be paid off eventually. Revenue streams commonly used to pay off or guarantee debt are toll user fees, fuel taxes, state general funds, and income taxes. Currently, outstanding state and local obligations for highway debt are about $47.9 billion.
Enhance private sources
Private sector financing refers to financing for highway projects that are primarily developed and constructed by the private sector. The Intermodal Surface Transportation Efficiency Act of 1991 (ISTEA) allows the use of federal funds on privately owned facilities and is expected to increase the attractiveness of toll roads as an investment option.
Develop and use other financing innovations
This category includes all other means of increasing highway financing not included above, or other institutional approaches to financing that make use of the above sources--for example, the creation of state revolving funds, which could recycle highway dollars. These revolving funds provide loans to highway entities for highway projects. The repayment of these loans over time allows the fund to revolve its lending ability in perpetuity. For example, the Washington State Public Works Trust Fund, established in 1985, was developed to provide a dependable long-term source of funds to local governments for infrastructure repair and reconstruction.
Reducing highway tax evasion is another means of increasing program receipts. Recent federal legislation requires tax-exempt diesel fuel to be dyed and raises the point of diesel fuel taxation to the terminal level. This legislation will have a positive impact on reducing the $2 billion annual state and federal fuel tax evasion loss.
More extensive use of revolving funds, administrative improvements to reduce evasion, and other institutional approaches comprise a final option for increasing highway finances.
How to Pay for $25 Billion More in Highway Projects
Highway user fees represent a strong potential source for addressing unmet highway financing requirements. Following are two of many possible scenarios for using these fees. These scenarios have been intentionally simplified.
Increased Motor Fuel Taxes Scenario
Motor fuel taxes would need to be raised by slightly less than 20 cents per gallon in order to increase highway spending by $25 billion annually. This figure is based on the rule of thumb that a one-cent per gallon increase in motor fuel taxes would equate to about $1.3 billion in new revenues per year. These new taxes would increase the cost of travel, which is currently about 3.4 cents per mile, by a little more than one cent per mile. At end of the 20-year period, the increased taxes could be re-examined to determine if highway conditions had improved sufficiently to allow a tax reduction or elimination.
Increased Bond Issuance Scenario
To increase highway spending $25 billion annually through increased municipal bond issuance would incur only very small interest payment charges in the scenario's early years. As little as $1.5 billion in the first year would be needed to pay bond interest. However, because it is necessary to issue $25 million in bonds annually, these interest costs would accumulate. After 17 years, the cost of interest on the bonds would exceed $25 billion. The total debt after 20 years would be $500 billion. This total, when added to interest costs over the 20 years, would add over 20 cents per mile of travel to pay the debt incurred.
If toll revenues were used to pay interest on the bonds and retire the bonds when due, more than 2.5 cents per vehicle-mile traveled would be added to users' travel costs.
These scenarios provide two extreme examples and are intended to stimulate future policy discussion. Neither an immediate tax increase of slightly less than 20 cents per gallon nor a massive highway debt is an option that would totally fulfill the criteria outlined in the main article. However, these scenarios demonstrate the need to examine all policy and legislative options to increase highway spending.
Evaluating the Options
In general, revenue sources may be evaluated on their revenue potential (i.e., their ability to raise the needed resources); their equity (fairness of distribution of costs to benefits); their efficiency (which pertains to the ability of the government to collect these revenues); and their political acceptability to taxpayers and government decision makers.
One approach to increasing highway financing is to consider the relative merits of those highway revenue options that best meet the above criteria. Another approach to increasing highway financing is to assume that the "system is broken"--i.e., that the basic concepts of highway finance must be revisited and that a comprehensive change in the highway financing system is needed.
No matter what approach or strategy is chosen, highway financing requirements are almost overwhelming. Their magnitude requires transportation officials to look at every option and to carefully plan a strategy that will increase investment. No single option or strategy, however, is likely to solve the problem entirely at all levels.
FHWA Establishes Innovative Finance Test
Page Owner: Office of Corporate Research, Technology, and Innovation Management
Scheduled Update: Archive - No Update
Technical Issues: TFHRC.WebMaster@dot.gov