Congestion pricing

Source: Wikipedia, the free encyclopedia.
Electronic Road Pricing gantry in Singapore, the first place in the world to implement an urban cordon area congestion pricing scheme.

Congestion pricing or congestion charges is a system of surcharging users of

airports and through canals at busy times. Advocates claim this pricing strategy regulates demand, making it possible to manage congestion without increasing supply
.

According to the economic theory behind congestion pricing, the objective of this policy is to use the

negative externalities they create (such as driving in a congested area during peak demand). By setting a price on an over-consumed product, congestion pricing encourages the redistribution of the demand in space or in time, leading to more efficient
outcomes.

1998. Since then, it has been implemented in cities such as London, Stockholm, Milan, and Gothenburg. It has also been proposed in San Francisco, and will be implemented in New York City in June 2024. Greater awareness of the harms of pollution and emissions of greenhouse gases in the context of climate change
has recently created greater interest in congestion pricing.

Implementation of congestion pricing has reduced congestion in urban areas,[1] reduced pollution,[2] reduced asthma,[3] and increased house values,[4] but has also sparked criticism and public discontent. Critics maintain that congestion pricing is not equitable, places an economic burden on neighboring communities, and adversely affects retail businesses and general economic activity.

There is a consensus among economists that congestion pricing in crowded transportation networks, and subsequent use of the proceeds to lower other taxes, makes the average citizen better off.[5] Economists disagree over how to set tolls, how to cover common costs, what to do with any excess revenues, whether and how "losers" from tolling previously free roads should be compensated, and whether to privatize highways.[6] Four general types of systems are in use: a cordon area around a city center, with charges for passing the cordon line; area wide congestion pricing, which charges for being inside an area; a city center toll ring, with toll collection surrounding the city; and corridor or single facility congestion pricing, where access to a lane or a facility is priced.

Description

Congestion pricing is a concept from

tax
or charge when peak demand exceeds available supply in the case of a tax-funded public good provided free at the point of usage.

Economic rationale for moving from untolled equilibrium to congestion pricing equilibrium.

According to the economic theory behind congestion pricing, the objective of this policy is the use of the price mechanism to make users more aware of the costs that they impose upon one another when consuming during the peak demand, and that they should pay for the additional congestion they create, thus encouraging the redistribution of the demand in space or in time,[7][8] or shifting it to the consumption of a substitute public good; for example, switching from private transport to public transport.

This pricing mechanism has been used in several public utilities and public services for setting higher prices during congested periods, as a means to better manage the demand for the service, and whether to avoid expensive new investments just to satisfy peak demand, or because it is not economically or financially feasible to provide additional capacity to the service. Congestion pricing has been widely used by

autobus services,[9] and has been proposed for charging internet access.[10] It also has been extensively studied and advocated by mainstream transport economists for ports, waterways, airports and road pricing, though actual implementation is rather limited due to the controversial issues subject to debate regarding this policy, particularly for urban roads, such as undesirable distribution effects, the disposition of the revenues raised, and the social and political acceptability of the congestion charge.[11][12]

An introductory flowchart describing congestion pricing

Congestion pricing is one of a number of alternative

supply side) strategies offered by economists to address traffic congestion.[13] Congestion is considered a negative externality by economists.[14] An externality occurs when a transaction causes costs or benefits to a third party, often, although not necessarily, from the use of a public good: for example, if manufacturing or transportation cause air pollution imposing costs on others when making use of public air. Congestion pricing is an efficiency pricing strategy that requires the users to pay more for that public good, thus increasing the welfare gain or net benefit for society.[15][16]

Nobel-laureate William Vickrey is considered by some to be the father of congestion pricing, as he first proposed adding a distance- or time-based fare system for the New York City Subway in 1952.[17][18][19] In the road transportation arena these theories were extended by Maurice Allais, Gabriel Roth who was instrumental in the first designs and upon whose World Bank recommendation the first system was put in place in Singapore.[20] Also, it was considered by the Smeed Report, published by the British Ministry of Transport in 1964,[21] but its recommendations were rejected by successive British governments.[22]

The transport economics rationale for implementing congestion pricing on roads, described as "one policy response to the problem of congestion", was summarized in testimony to the United States Congress Joint Economic Committee in 2003: "congestion is considered to arise from the mispricing of a good; namely, highway capacity at a specific place and time. The quantity supplied (measured in lane-miles) is less than the quantity demanded at what is essentially a price of zero. If a good or service is provided free of charge, people tend to demand more of it—and use it more wastefully—than they would if they had to pay a price that reflected its cost. Hence, congestion pricing is premised on a basic economic concept: charge a price in order to allocate a scarce resource to its most valuable use, as evidenced by users' willingness to pay for the resource".[23]

Roads

Practical implementations of road congestion pricing are found almost exclusively in urban areas, because traffic congestion is common in and around city centers. Congestion pricing can be fixed (the same at all times of day and days of the week), variable (set in advance to be higher at typically high-traffic times), or dynamic (varying according to actual conditions).

As congestion pricing has been increasing worldwide, the schemes implemented have been classified into four different types: cordon area around a city center; area wide congestion pricing; city center toll ring; and corridor or single facility congestion pricing.[24]

Cordon area and area wide

At Old Street, street markings and a sign (inset) with the white-on-red C alert drivers to the congestion charge, London.

Cordon area congestion pricing is a fee or tax paid by users to enter a restricted area, usually within a city center, as part of a

traffic accidents, environmental and urban deterioration, and the extra costs and delays imposed by traffic congestion upon other drivers when additional users enter a congested road.[26]

Rome's Traffic Limited Zone (ZTL) entry control point with automatic surveillance.

The first implementation of such a scheme was

Singapore upgraded its system in 1998,[29] and similar pricing schemes were implemented in Rome in 2001,[30] London in 2003 with extensions in 2007; Stockholm in 2006, as a seven-month trial, and then on a permanent basis.[31] In January 2008 Milan began a one-year trial program called Ecopass, charging low emission standard vehicles and exempting cleaner and alternative fuel vehicles.[32][33][34] The Ecopass program was extended until December 31, 2011,[35][36] and on January 16, 2012, was replaced by Area C, a trial program that converted the scheme from a pollution-charge to a congestion charge.[37] The Gothenburg congestion tax was implemented in January 2013 and it was modeled after the Stockholm scheme.[38]

Trängselskatt automatic control point at Ropsten, Stockholm. The sign on the right informs the drivers about the different fees, which vary depending on the time of the day.

Singapore and Stockholm charge a congestion fee every time a user crosses the cordon area, while London charges a daily fee for any vehicle driving in a public road within the congestion charge zone, regardless of how many times the user crosses the cordon.[39] Stockholm has put a cap on the maximum daily tax,[40] while in Singapore the charge is based on a pay-as-you-use principle, and rates are set based on traffic conditions at the pricing points, and reviewed on a quarterly basis. Through this policy, the Land Transport Authority (LTA) reports that the electronic road pricing "has been effective in maintaining an optimal speed range of 45 to 65 km/h for expressways and 20 to 30 km/h for arterial roads".[41]

Singapore

Automatic tolling gantry of Singapore's Electronic Road Pricing scheme.

In an effort to improve the pricing mechanism, and, to introduce real-time variable pricing,[42] Singapore's LTA together with IBM, ran a pilot from December 2006 to April 2007, with a traffic estimation and prediction tool (TrEPS), which uses historical traffic data and real-time feeds with flow conditions from several sources, in order to predict the levels of congestion up to an hour in advance. By accurately estimating prevailing and emerging traffic conditions, this technology is expected to allow variable pricing, together with improved overall traffic management, including the provision of information in advance to alert drivers about conditions ahead, and the prices being charged at that moment.[43][44]

In 2010 the Land Transport Authority began exploring the potential of

Global Navigation Satellite System as a technological option for a second generation ERP. LTA objective is to evaluate if the latest technologies available in the market today are accurate and effective enough for use as a congestion charging tool, especially taking into consideration the dense urban environment in Singapore. Implementation of such system is not expected in the short term.[45]

London

Entrance to the London Congestion Charge zone. Shown traffic sign and the CCTV used to control vehicles entering the zone's boundary.

Johnson announced in July 2008 that the new CO2 charging structure will no longer be implemented.[49] Among other reasons, he said the environmental charge would encourage travel by thousands of smaller vehicles free of charge, resulting in increased congestion and pollution.[49][50] He also discarded plans for extending the charge zone to the suburbs, and announced he will review the western extension implemented in 2007, based on a public consultation planned for September 2008.[51] Having held a five-week public consultation with residents in the autumn of 2008, Johnson decided to remove the 2007 Western Extension from the congestion charging zone beginning on January 4, 2011, to increase the basic charge to £10, and also to introduce an automated payment system called Congestion Charging Auto Pay (CC Auto Pay), which will charge vehicles based on the number of charging days a vehicle travels within the charging zone each month, and the drivers of these vehicles will pay a reduced £9 daily charge.[52]

In November 2012 Transport for London (TfL) presented a proposal to abolish the Greener Vehicle Discount that benefited, among others, vehicles with small diesel engines that avoid the charge because their engines produce emissions of less than 100g per km of CO2.

Euro 5 emission standards for air quality. The measure was designed to curb the growing number of diesel vehicles on London's roads. About 20,000 owners of vehicles registered for the Greener Vehicle Discount by June 2013 were granted a three-year sunset period before they have to pay the full congestion charge.[54][55][56] The sunset period ended on 24 June 2016.[57]

Since the congestion charge introduction in 2003, over £1.2 billion has been invested in transport through December 2013, including £960 million on improvements to the bus network; £102 million on roads and bridges; £70 million on road safety; £51 million on local transport/borough plans; and £36 million on sustainable transport and the environment.[58] There has been criticism because during the first ten years since the scheme was implemented, gross revenue reached about £2.6 billion, but only £1.2 billion has been invested, meaning that 54% of gross revenues have been spent in operating the system and administrative expenses.[59]

In June 2014 the standard charge was raised 15% from £10 per day to £11.50.[60] According to TfL the objective of the increase is to recoup inflation over the previous three years and ensure the charge remains an effective deterrent to making unnecessary journeys in central London.[61]

A new toxicity charge, known as T-charge was introduced from 23 October 2017. Older and more polluting cars and vans that do not meet Euro 4 standards will have to pay an extra £10 charge on top of the £11.50 congestion charge to drive in central London, within the Congestion Charge Zone (CCZ). The charge typically applies to diesel and petrol vehicles registered before 2006, and the levy is expected to affect up to 10,000 vehicles.[62][63] London Mayor Sadiq Khan announced the introduction of the scheme in February 2017 after London achieved record air pollution levels the previous month, and the city was put on very high pollution alert for the first time ever, as cold and stationary weather failed to clear toxic pollutants emitted mainly by diesel vehicles.[64]

On 8 April 2019, the T-charge was expanded into the Ultra Low Emission Zone (ULEZ).[65]

Entrance to Milan Area C

Milan

The Ecopass pollution charge ended on December 31, 2011, and was replaced by the

CNG and LPG) were exempted until January 1, 2013, Exemption has been postponed until December 31, 2016.[67]

The scheme was made permanent in March 2013. All net earnings from Area C are invested to promote

Zone 30) and systems to rationalize the distribution of goods.[68]

Stockholm

Automatic detection system at Stockholm's first electronic gantry at Lilla Essingen.

On 1 January 2016, congestion taxes were increased in the inner-city parts of

motorway. This was the first increase of the tax since it was introduced permanently in 2007.[69][70]

The congestion tax is being introduced at the access and exit ramps of two interchanges on Essingeleden in order to reduce traffic jams in peak periods, and with shorter traffic jams on Essingeleden, the surrounding roads are expected to have shorter tailbacks. The transport agencies involved expected to reduce traffic on Essingeleden by some 10% in peak hours.[69] One week after the tax began to be charged, traffic on the motorway had decreased by 22% compared to a normal day in mid-December.[70]

The tax increase was implemented not only to improve accessibility and the environment, but also to help develop the infrastructure. The additional funds will contribute to finance the extension of the

Stockholm metro.[69] As the Stockholm congestion tax varies by time of the day, the highest increase took place at the two busiest rush hour periods, 7:30 to 8:29, and 16:00 to 17:29, from SEK 20 to SEK 30. The objective was to steer the traffic towards other times of the day and public transport, and in this way reduce congestion in the Inner City area. Also the maximum amount levied was raised to SEK 105 per day and vehicle.[69]

Norway

Several cities in Norway have tolled entrances to the more central urban areas, the first being Bergen in 1986. Starting with Trondheim in 2010, later in Kristiansand, Bergen and Oslo, time differing fees were introduced, so that rush hours (in Oslo 06.30 – 09.00 and 15.00 – 17.00) cost more. The price is (in 2020) typically NOK 28 (€2.37) per passage, but to enter Oslo to the inner city and leave means passing five stations which costs NOK 126 (€10,66).

Old town centres

Around Europe several relatively small cities, such as Durham, England;[71] Znojmo, Czech Republic;[72] Riga, Latvia;[73] and Valletta, Malta,[74][75] have implemented congestion pricing to reduce traffic crowding, parking problems and pollution, particularly during the peak tourism season.

Durham introduced charges in October 2002, reducing vehicle traffic by 85% after a year; prior to this 3,000 daily vehicles had shared the streets with 17,000 pedestrians.[76]

Valletta has reduced daily vehicles entering the city from 10,000 to 7,900; making 400 readily available parking places in the center. There has been a 60% drop in car stays by non-residents of more than eight hours, but there has been a marked increase of 34% in non-residential cars visiting the city for an hour or less.[75][77]

Rejected proposals

The New York City congestion pricing proposal was rejected by the New York State Legislature in 2008, but later approved in 2019.
A map of Greater Manchester highlighting area of the rejected congestion charging scheme