engineering

TRIS online

TRIS online is a engineering 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 TRIS online rather than just read about it. In short: The Transportation Research Information Services online (Tris online) was a bibliographic database funded by sponsors of the United States Transportation Research Board (TRB), primarily the USA state departments of transportation and selected US federal transportation agencies. TRIS Online was hosted by the National Transportation Library under a cooperative agreement between the Bureau of Transportation Statistics…

Key takeaways

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

Reference excerpt

The Transportation Research Information Services online (Tris online) was a bibliographic database funded by sponsors of the United States Transportation Research Board (TRB), primarily the USA state departments of transportation and selected US federal transportation agencies. TRIS Online was hosted by the National Transportation Library under a cooperative agreement between the Bureau of Transportation Statistics and TRB. TRIS provided access to over 300,000 bibliographic records covering transportation research published in books, journal articles, technical reports and the media.

Update January 2011 The TRIS Database returned to TRB in 2010; in 2011 the TRIS Database was integrated with other international transportation literature databases (such as the ITRD Database).

Update July 2020 More information about the integrated database and access to it is available at the TRID Transportation Research Database article.

References

External links Official website Transportation Research Board

Worked examples

Example 1 — a first encounter with TRIS online

Start with the simplest possible case. Write down what TRIS online claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In engineering, 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 TRIS online 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 TRIS online 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 TRIS online

In research: TRIS online appears in engineering 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 TRIS online 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: TRIS online is common in secondary-school and first-year university syllabi. It links to neighbouring topics Bibliographic databases and indexes, Transportation infrastructure in the United States, so understanding it makes those chapters shorter.
In everyday life: Look for TRIS online 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 TRIS online in 20 minutes

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

Frequently asked questions

What is TRIS online in simple terms?

Why does TRIS online matter?

Because it connects several engineering 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 TRIS online?

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 TRIS online.