Search Help

Modifying a Search

  • Click the Filters button to see all available search fields.
  • When submitting searches, click the button after entering all search criteria, or hit the Enter button on your keyboard.
  • Add more criteria to narrow search results. Delete criteria to broaden search results.
  • Click the button to begin a new search.
  • Click the History button to re-run a previous search.

Text Field Searching

These rules apply to any plain text field on the Search Filters form.

  • For an exact match, enclose a phrase within quotes:
  • For a wild-card search, use an asterisk (*) after a partial word.
  • RIP will perform limited automatic stem searching when using quoted phrase searches.
  • Search example: retrieves technological forecasting, technological forecasts, technology forecasts.
  • For a Boolean search, use OR, AND, or NOT between words or phrases.
  • A nested search may be performed by enclosing term(s) within parentheses.
  • Search example:
  • Stop Words: The following words are ignored in any search or quoted phrase in order to reduce the size of the search index and increase search speed: about, also, an, and, another, any, are, as, at, be, because, been, being, between, both, but, by, came, can, come, could, did, do, does, each, else, for, from, get, got, has, had, he, have, her, here, him, himself, his, how, if, in, into, is, it, like, make, many, me, might, more, most, much, must, my, never, now, of, on, only, or, other, our, out, over, same, see, should, since, so, some, still, such, take, than, that, the, their, them, then, there, these, they, this, those, to, too, want, was, we, well, were, what, when, where, which, while, who, will, with, would, your.

Keyword Field

This field searches all of the indexed fields in the RIP Database which include title, project description, notes, index terms, subject areas, project identifiers, project managers, principal investigators, funding agencies, and performing agencies.

Title Field

Enter one or more terms from a title or the exact title to search on a project title.

Subject Areas

Click the field or use the down arrow to select a TRB subject area to limit search results by a specific transportation mode, function, or activity. You may also start typing to filter the list, then use the arrow keys or highlight with the cursor to select a subject area. Multiple subject areas may be selected; simply repeat the process as for selecting the first subject area. If you select multiple subject areas, you can switch between OR/AND Boolean logic for your selections by selecting the appropriate radio button: Match Any Subject Listed or Match All Subjects Listed.

Project/Contract Number

Enter complete or partial criteria to search for contract or grant numbers.

To search for multiple terms, use OR to separate search terms.


Selecting project status checkboxes will limit your results to only those statuses.


Select an entry to limit searches to records from a specific source. A source is the organization or type of organization that provided the record for the RIP Database. Only one Source can be selected per search. If you need to limit your search to two or more Sources, repeat your search while selecting the appropriate Source, then use the Search History feature to combine those searches using the OR Boolean operator.

Location (by state)

Click the field or use the down arrow to select a state to limit search results by one or more states. You may start typing to filter the list, and then use the arrow keys or cursor to make a selection. Multiple states may be selected.

Index Term

Begin typing an index term. If the term is from the Transportation Research Thesaurus (TRT), matching terms will appear in a drop down list from which you can select terms. More than one term may be selected; in this case the default Boolean operator is OR.

Uncontrolled terms do not appear in the drop down list but are still searchable in the Keywords field.


Enter a partial or complete organization name to search among funding organizations, performing organizations, and source organizations. You may use Boolean logic if needed.


Enter a person's last/family name and first/given name or initial to search among principal investigators and project managers. You can use wildcards and Boolean logic to search across all matching names, including first names.

Note that a query for will return results for 'Smith, Robert,' 'Smith, Richard' and authors 'Smith and Robert' or other last/family and first/given names that begin with the letter R. It will not return results for 'Smith, Bob'. Please keep in mind that due to differences in indexing practices among the various contributors to the RIP Database, some records contain only first/given initials rather than full names.

Select Date Range

The default is set to search all dates. To narrow your search, select one of the preset buttons: , , , or use to specify a date range.

Date Range Type

The default is set to search on the date that a project started or will start.

Select Record Created Date to search by date on which records were initially entered into the Database.

Sort Options

Use these parameters to change the order in which results are displayed.

Records per Page

Select the number of results shown on each page. The default is set to display 25 records.

Results View

Mark Records

You can print, e-mail, save, or view selected records during the course of a session by marking one or more records. Use the Mark: Page | All | None options at the top of the results to select all the records on a page or the entire record set. Marked records will persist across searches, allowing you to combine many different results into a single collection. To clear your marked records, use the Clear link above the search results on the top right.

Use the checkboxes in the left pane to mark individual records.

In mobile mode, navigate back to the results list when viewing individual records by clicking Results in the upper left portion of your screen.


Use the page navigation to move to the next or previous page of results. You can also jump to a page by entering the page number into the page number field and pressing enter.

Marked Records


  • Print marked records in various formats.
  • Email marked records to yourself or another person.
  • Save marked records for other uses including importing bibliographic software like RefWorks, EndNote, or ProCite.
  • Clear your marked record collection.


Plain text format for a reference citation.
Citation & Abstract
Plain text format for a reference citation which also includes the record abstract or description.
Used to import into bibliographic software like RefWorks, EndNote, Zotero or ProCite.
Microsoft Word
Full record output in Microsoft Word document format. Records are separated by page breaks.
Structured output of full record data in XML for use in data transfer or import.
Full record output as a web page for print or display in a browser.