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Toll bridge

Toll bridge is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Toll bridge rather than just read about it. In short: A toll bridge is a bridge where a monetary charge (or toll) is required to pass over. Generally the private or public owner, builder and maintainer of the bridge uses the toll to recoup their investment, in much the same way as a toll road.

Toll bridge — main illustration
Toll bridge — illustration

Key takeaways

  • Toll bridge belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Toll bridge to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Toll bridge from memory before moving on to harder problems.

Reference excerpt

A toll bridge is a bridge where a monetary charge (or toll) is required to pass over. Generally the private or public owner, builder and maintainer of the bridge uses the toll to recoup their investment, in much the same way as a toll road.

History

The practice of collecting tolls on bridges harks back to the days of ferry crossings where people paid a fee to be ferried across stretches of water. As boats became impractical to carry large loads, ferry operators looked for new sources of revenue. Having built a bridge, they hoped to recoup their investment by charging tolls for people, animals, vehicles, and goods to cross it. The original London Bridge across the river Thames opened as a toll bridge, but an accumulation of funds by the charitable trust that operated the bridge (Bridge House Estates) saw that the charges were dropped. Using interest on its capital assets, the trust now owns and runs all seven central London bridges at no cost to taxpayers or users. In the United States, private ownership of toll bridges peaked in the mid-19th century, and by the turn of the 20th century most toll bridges were taken over by state highway departments. In some instances, a quasi-governmental authority was formed, and toll revenue bonds were issued to raise funds for construction or operation (or both) of the facility. Peters and Kramer observed that "little research has been done to quantify the impact of toll collection on society as a whole" and therefore they published a comprehensive analysis of the Total Societal Cost (TSC) associated with toll collection as a means of taxation. TSC is the sum of administrative, compliance, fuel and pollution costs. In 2000 they estimated it to be $56,914,732, or 37.3% of revenue collected. They also found that a user of a toll road is subject to a form of triple taxation, and that toll collection is a very inefficient means of funding the development of highway infrastructure. Nakamura and Kockelman (2002) show that tolls are by nature regressive, shifting the burden of taxation disproportionately to the poor and middle classes. Electronic toll collection, branded under names such as EZ-Pass, SunPass, IPass, FasTrak, Treo, GoodToGo, and 407ETR, became increasingly prevalent in metropolitan areas in the 21st century. Amy Finkelstien, a public finance economist at MIT, reports that as the fraction of drivers using electronic toll collection increased, typically toll rates increased as well, because people were less aware of how much they were paying in tolls. Electronic tolling proposals that represented the shadow price of electronic toll collection (instead of the TSC) may have misled decision-makers. The general public has additionally endured an increased administrative burden associated with paying toll bills and navigating toll collection company on-line billing systems. Additionally, visitors to a region may incur e-toll tag fees imposed by their rental car company. The Paperwork Reduction Act of 1980 identified and attempted to address a similar problem associated with the government collection of information. Approvals were to be secured by government agencies before promulgating a paper form, website, survey or electronic submission that will impose an information collection burden on the general public. However, the act did not anticipate and thus address the burden on the public associated with funding infrastructure via electronic toll collection instead of through more traditional forms of taxation.

Removal and continuation of tolls

In some instances, tolls have been removed after retirement of the toll revenue bonds issued to raise funds. Examples include the Robert E. Lee Memorial Bridge in Richmond, Virginia which carries U.S. Route 1 across the James River, and the 4.5-mile long James River Bridge 80 miles downstream which carries U.S. Highway 17 across the river of the same name near its mouth at Hampton Roads. In other cases, especially major facilities such as the Chesapeake Bay Bridge near Annapolis, Maryland, and the George Washington Bridge over Hudson River between New York City and New Jersey, the continued collection of tolls provides a dedicated source of funds for ongoing maintenance and improvements. Sometimes citizens revolt against toll plazas, as was the case in Jacksonville, Florida. Tolls were in place on four bridges crossing the St. Johns River, including I-95. These tolls paid for the respective bridges as well as many other highway projects. As Jacksonville continued to grow, the tolls created bottlenecks on the roadway. In 1988, Jacksonville voters chose to eliminate all the toll booths and replace the revenue with a ½ cent sales tax increase. In 1989, the toll booths were removed, 36 years after the first toll booth went up. In Scotland, the Scottish Parliament purchased the Skye Bridge from its owners in late 2004, ending the requirement to pay an unpopular expensive toll to cross to Skye from the mainland.

In 2004, the German government cancelled a contract with the "Toll Collect" syndicate after much negative publicity. The term "Toll Collect" became a popular byword among Germans used to describe everything wrong with their national economy.

Toll collection It has become increasingly common for a toll bridge to only charge a fee in one direction. This helps reduce the traffic congestion in the other direction, and generally does not significantly reduce revenue, especially when those travelling the one direction are forced to come back over the same or a different toll bridge.

… excerpt ends here. Continue reading the full article.

Illustrations

Toll bridge: Paying toll on passing a bridge. From a painted window in the Tournai Cathedral (15th century).
Paying toll on passing a bridge. From a painted window in the Tournai Cathedral (15th century).
Toll bridge: Toll booth at Mississippi River Bridge at St. Louis, Missouri  U.S. Library of Congress
Toll booth at Mississippi River Bridge at St. Louis, Missouri U.S. Library of Congress
Toll bridge: Toll plaza at the Rainbow Bridge, Niagara County, New York
Toll plaza at the Rainbow Bridge, Niagara County, New York
Toll bridge: Toll rates at Connecticut River Bridge between New Hampshire and Vermont  U.S. Library of Congress
Toll rates at Connecticut River Bridge between New Hampshire and Vermont U.S. Library of Congress
Toll bridge: Dublin's famous Ha'penny Bridge
Dublin's famous Ha'penny Bridge

Worked examples

Example 1 — a first encounter with Toll bridge

Start with the simplest possible case. Write down what Toll bridge claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Toll bridge before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Toll bridge ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Toll bridge

In research
Toll bridge appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Toll bridge in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Toll bridge is common in secondary-school and first-year university syllabi. It links to neighbouring topics Bridges, Car costs, Toll bridges, so understanding it makes those chapters shorter.
In everyday life
Look for Toll bridge outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Toll bridge in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Toll bridge means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Toll bridge out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Toll bridge in simple terms?

A toll bridge is a bridge where a monetary charge (or toll) is required to pass over. Generally the private or public owner, builder and maintainer of the bridge uses the toll to recoup their investment, in much the same way as a toll road.

Why does Toll bridge matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Toll bridge?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Toll bridge.

Tags

  • Bridges
  • Car costs
  • Toll bridges
  • Toll roads

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