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Refine Search

If your search does not yield the results you want, try one or more of the following:

Add another search term

Scroll down to the bottom of the screen and click on the link "Refine Search" Add another term to your previous search.

Use TRT controlled vocabulary

Scroll down to the bottom of the screen and click on the link "Refine Search" Go to the first empty input box and change the index to "TRT Terms". Click on the lookup icon - magnifying glass. You can browse the index or search for a term.

Use Limits

Scroll down to the bottom of the screen and click on the link "Refine Search" Add a limit to your previous search.

Limit Name Descritpion Examples

Resource Type (N)
drop down list that describes the type of item
Research Paper

Year
publication year
(format: YYYY, YYYY-YYYY, -YYYY, YYYY-)

After 1995: 1995-
Between 2000 and 2006: 2000-2006

Format (N) drop down list that specifies format of full text HTML or PDF

Language (N) drop down list of available languages English

Geographical Coverage (N) Lookup option of geographic locations New York

Full Text Links (T) Record only with full text links available

Limit Name	Descritpion	Examples
Resource Type (N)	drop down list that describes the type of item	Research Paper
Year	publication year (format: YYYY, YYYY-YYYY, -YYYY, YYYY-)	After 1995: 1995- Between 2000 and 2006: 2000-2006
Format (N)	drop down list that specifies format of full text	HTML or PDF
Language (N)	drop down list of available languages	English
Geographical Coverage (N)	Lookup option of geographic locations	New York
Full Text Links (T)	Record only with full text links available

Related topics:

TRIS is a bibliographic database funded by sponsors of the Transportation Research Board (TRB), primarily the state departments of transportation and selected federal transportation agencies. TRIS Online is hosted by the National Transportation Library under a cooperative agreement between the Bureau of Transportation Statistics and TRB.