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CIE 225: Transportation Engineering



When using Fogler Library's research databases, you will likely see the ArticleLinker button a lot. ArticleLinker helps you find the full-text of articles from a database record. ArticleLinker can be confusing at first, until you get used to it. Here is a link to a 5-minute ArticleLinker tutorial:

ILLiad (Interlibrary Loan)

It is important to set up an interlibrary loan account before you begin your research so that it will be available when you need it. Even if you do not need to use ILLiad for CIE 225, you will likely need it at some point in your academic career. Create an account now and you'll have access to it until you leave UMaine:

EndNote (RefWorks also available)

EndNote is a great place to save and organize your references. EndNote helps you format your references in many common styles. Create your own personal account, organize your references, and keep them forever.

To get the most out of EndNote, inititial registration from an on-campus workstation or the UMaine Tempest WiFi network with a valid UMaine email address--either your FirstClass or your MaineStreet address will validate--is required. Once registered, users can access their personal accounts from any Internet enabled computer, even off-campus, from

Note: Due to licensing restrictions, some features of EndNote (such as the Article Linker buttons) are only present when connecting via UM EZProxy. This is achieved by entering Web of Science from the library website at instead of Contact me if you run into problems.

LibX Toolbar

Download from Add this toolbar to your Firefox, Chrome or IE browser to give you access to library-licensed materials without going through the Fogler Library site. When encountering a subscription login screen or a purchase screen while attempting to access a full-text article found online, use the contextual drop-down menu (usually a right-click or equivalent) and select "Reload via UM EZProxy." If Fogler has access to the full-text, the login screen or purchase screen will be replaced with the full-text article. Requires an easy one-step setup after installation, see instructions on the download page.

Search Alerts

Most scholarly databases and search engines (including Google Scholar) have alert services that allow you to specify a search string or search criteria and receive an alert via email whenever new content is available that meet the specified criteria. It is best to set these up early in the research process in order to save time later.


Scholarly Journals vs. Popular & Trade Magazines

Resource Evaluation Criteria (from Cornell)

Transportation Engineering Research Portal

This page lists the most commonly used databases and other resources for transportation engineering research. This is a good place to start.

Transportation Engineering Subject Guide

This page is a comprehensive listing of many common and uncommon databases and other resources for transportation engineering research. Consult this page if the research portal didn't have the appropriate resources listed for your project.

Note: if accessing from off-campus, you will still be prompted to login with your name and barcode from your MaineCard.

Literature Search Examples

Web of Science

Web of Science is great for cross-disciplinary science and engineering research. Web of Science indexes only the highest ranking scholarly journals, based on citation frequency--it is generally accepted that the most highly cited journals are the most authoritative and trustworthy.

For articles about Enhanced delineation and friction for horizontal curves try the Topic search string: horizontal curv* AND (delineation OR friction)

Combining two keywords or phrases with the OR (all caps) operator tells the database to look for any article with either of the two phrases. The asterisk symbol is a wildcard that tells the database to look for any ending of the root word. In this example, the databse will look for "curve," "curved," "curvature," and other forms. Most databases allow Boolean operators (AND, OR and NOT) and use some type of wildcard symbol. Check the help files of the database to find out what symbol to use.

You may then narrow your search results to more relevant articles by using the "Web of Science Categories" list in the left sidebar.


I highly recommend watching this one-hour TRID Training Webinar:

TRID is the best place to start for transportation research. It has very comprehensively indexed records for all material types (text, audio, video, etc.) and sets the industry standard for transportation subject thesauri. Records vary--there is some full text; some links to external site with full text, audio, video; and some with abstract only. Unfortunately, TRID is not currently compatible with OneSearch, and is not integrated with ArticleLinker.

TRID and NTL are both good resources for searching Maine DoT publications instead of going directly to the Maine DoT Web site. They provide better indexing and abstracting, making searching easier and search results more relevant. It is advised that student consult the Maine DoT Web site only for information on current projects that have not yet been filed with TRID or NTL. Per has provided links directly to pertinent Maine DoT web pages.

To find papers on salt and winter maintenance in Maine, try using the Advanced Search and include the following fields:

  • Keyword: salt
  • Subject: maintenance
  • Index term: winter maintenance
  • Organization: Maine

Because of TRID's indexing, any article found in this search will be highly relevant.


OneSearch is the prominent Google-type search box on Fogler Library's homepage. OneSearch is great for finding articles that you already know the title of, but it isn't so good for doing broad topic searching. I recommend only using it to quickly find an article or book that you already have the title to. For topic searching, use one of the other resources available.

Google Scholar

Google Scholar is fast becoming the preferred starting point for scholarly research due to its ease of use and comprehensive indexing of peer-reviewed content. Many of the subscription databases accessed through Fogler Library are indexed by Google Scholar. However, Google Scholar is not reliable for accessing the full text of articles. To insure more successful access to full text articles found in Google Scholar, begin your session from Fogler Library's Google Scholar Gateway instead of going directly to Google Scholar, or, install the LibX toolbar.

To find papers on the topic: "Connected Vehicles Research" try the search string: "connected vehicles research"

Using quotation marks around exact phrases tells Google to look for the words as a phrase instead of individual words. This will help you find more relevant results. It will decrease the amount of results as well. 

Maine Dept. of Transportation

The following examples are searchable from the Maine DOT website. Note that there are two search boxes on the page. The one in the top-right header will search the entire website, while the one in the left sidebar will search only Maine DOT pages and publications. Both may be useful.

  1. Traffic Calming – use keyword search on MDOT.
  2. ADA OR "Americans with Disabilities" – use keyword search on MDOT. Use the OR (all caps) Boolean modifier. Best results when quotes are used on precise terms like "Americans with Disabilities".
  3. Multi-use trails – use keyword search on MDOT and on
  4. Searsport port expansion – use keyword search on MDOT and on
Locating MDOT Research Reports

Unfortunately MDOT Research Reports are not easily searchable. Below examples will point to some reports that may be useful for topics.

  1. Freight Shipping Methods – efficiencies, benefits, opportunities
  • From MDOT Research Reports page, click on Freight Transportation Planning in left sidebar.
  • On the resulting page, click on Freight Studies (in body).
  1. Searsport port expansion
  • From MDOT Research Reports page, click on Freight Transportation Planning in left sidebar.
  • On the resulting page, click on Cargo Ports (in body).

Transportation Research Record

To access Transportation Research Record, go to the Transportation Engineering Subject Portal and click on Transportation Research Record under S. Follow the links and once the site loads, click on more options to access the advanced search page. For each of the examples below, use the Summary search field, except where noted in example number 4.

  1. "Traffic Calming" – use quotes to find exact phrase
  2. "Composite materials" NOT bridge – the phrase "composite materials" will give better results than the word composites. Use NOT (all caps) to filter out articles about bridges.
  3. (Freight OR cargo) AND (shipping OR transport) AND (efficiency OR benefit OR opportunities) – use a variety of related keywords separated with the OR operator and place within parenthesis to broaden your search. Combine with AND and other keywords to narrow your search. Using combinations like this one will help find most relevant articles.
  4. "Rumble strips" in Summary field and motorcycl* in All Text field – If you get no relevant results when searching in summaries only, use the All Text field to broaden your search. Use the wildcard symbol (asterisk - *) to search alternate endings of a word such as motorcyclist and motorcycles.

ASCE Library

To access the ASCE Library, go to the Transportation Engineering Subject Portal and click on ASCE Library under Articles and More. Follow the links and once the site loads, click on the advanced button (under the search box) to access the advanced search page.

  1. Leave the Select Publications list set to All Publications and in each search field drop down menu, select Abstract/Title/Subject Heading.
  • In first search field enter Americans with Disabilities. Do not use quotation marks in the ASCE Library.
  • Change the first Boolean modifier drop down list to OR.
  • Enter in second field ADA.
  • Leave the second Boolean modifier drop down list set to AND.
  • Enter  in third field pedestrian.

Remember: If you need additional help, don't hesitate to contact us - that's what we're here for! There are many ways you can reach us:

Created by: Martin Wallace | Revised: 06/23/2014

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