Free-market roads

Free-market roads is the idea that it is possible and desirable for a society to have entirely private roads.
Free-market roads and infrastructure are generally advocated by anarcho-capitalist works, including Murray Rothbard's "For a New Liberty", Morris and Linda Tannehill's "The Market for Liberty", David D. Friedman's "The Machinery of Freedom", and David T. Beito's "The Voluntary City".
Arguments for free market roads.
"Private roads can have no free riders, reducing congestion".
The free rider problem has been cited by proponents such as Murray Rothbard as a reason for privatizing roads: since traffic congestion is the result of excess demand for transportation infrastructure, it may be treated as any other economic shortage - in this case, a shortage of roads, lanes, exits, or other infrastructure. Seeing the pricing mechanism of a free market as a more efficient means of meeting demand than government planning (see Economic calculation problem), Peter Samuel, in his book "Highway Aggravation: The Case for Privatizing the Highways", compares American traffic jams and Soviet grocery store lines:
Insufficient competition between private roads could however lead to oligopoly or even monopoly pricing, which leads to higher tolls and lower construction capacities. This results in higher costs for consumers but no reduction in congestion.
"Privatization will encourage better infrastructure management".
B. H. Meyer stated, "It is evident that the turnpike movement resulted in a very general betterment of roads." The book "Street Smart" claims that Brazil has saved 20 percent and Colombia 50 percent through efforts to outsource road maintenance to the private sector.
"Free market roads will have less crime".
Bruce L. Benson argues that when roads are privately owned, local residents will be better able to prevent crime by exercising their right to ask miscreants to leave. He observes that avenues in the private places of St. Louis have been shown to have lower crime rates than adjacent public streets. "The Market for Liberty" further argues that private roads will be better policed as the owners focus on serious crime rather than on victimless offenses:
This argument however ignores possible consumer discrimination. If most people would not want to share a road with a certain group of people, it would be economically beneficial for the company to discriminate against those people.
"Free market roads will encourage small business".
Mutualist Kevin Carson argues that transportation is a natural diseconomy of scale. He says that the cost of transportation increases disproportionately with the size of a firm; he believes that in a free market, there would be strict upper limits to the size and power of corporations, and small businesses would have natural advantages. He continues by arguing that government subsidies to transportation, however, make large, centralized corporations artificially profitable, contributing to corporate dominance of the economy. Carson believes that in many cases, centralized industry did not develop until after the advent of taxpayer-funded roads and other transportation projects.
Arguments against free market roads.
"Roads are often natural monopolies".
In many parts of the world land use patterns mean that building two or more highways in parallel isn't practicable, thus making highways a natural monopoly. Kroeger claims, "This would result in an incredibly inefficient use of land resources." When there is only one highway connecting points A and B, the main advantage of privatization, competition, disappears. In the absence of regulation, a private highway could charge an exorbitant monopoly price, resulting in huge profit margins and few benefits for drivers. An initial franchise fee (in the case of franchised publicly owned roads) and/or savings of public capital costs, can offset the resulting monopoly profits in terms of societal costs, but there are distributional issues in that the income is spread over an entire region while the burden falls on a small subset of that region's population who actually need to use the road. Also, it is difficult to predict the long term present value of a road. For example, the 407 ETR (an express toll highway near Toronto originally built with public funds) was leased for three billion CDN and was subsequently valued at nearly ten billion CDN. While alternate local roads and other forms of transportation may provide some competition, it is often impractical, especially for goods.
A counter-argument is that while a lone highway connecting A to B may not have any other competition from other highways, it would still have to compete with trains, planes, and other roads.
"Transaction costs can outweigh benefits".
As with any transaction, there are transaction costs associated with charging for entry to roads. These include explicit costs like the building of toll booths and paying guards and other associated personnel, as well as implicit costs like wait times and mental processing costs. Especially for smaller roads these transaction costs would make privatisation undesirable, as it is unlikely for the benefits to outweigh the possible costs.