DOT Online Database

Investigations of Railroad Accidents 1911 - 1993

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Simplified Search Syntax

To find documents containing the exact word, enter the word only, then press Search

In Simplified Search, spaces between words are interpreted as an OR operation. Entering the phrase "holiday pay" will find every document containing either the word holiday or the word pay.

Documents containing both words will score higher in the Search Results page.

To find documents that contain the exact phrase, enter the desired phrase within quotation marks: “holiday pay”

Simplified Search special operators include the plus + and the minus - signs:

document region (Finds documents that contain either word)
document +region (Finds documents that contain both words)
document -region (Finds documents containing the first word but not the second word)
-region (Finds documents that do not contain a word)

Proximity Searches are supported implicitly with Simplified Search Syntax. Words which are closer together will score higher than words which are further apart in documents.

Precise Search Syntax

The following are valid searches

To find documents with the exact word, enter only the word into the Search Dialogue box: i.e., Holiday, then press Search

To find documents containing an exact phrase, enter the phrase with no symbols: i.e., Holiday pay, then press Search

Precise Search utilizes Boolean Operator syntax. Boolean Operators are words, not symbols, and do not require the use of italics, parentheses or quotation marks. Enter Boolean Operators as follows:

document and region
document or region
document and not region
not region

Removing the power of Boolean Operators

rock "and" roll - will find "rock and roll"
to be "or" "not" to be, will find "to be or not to be"

Proximity Searches

payroll near laws
payroll near(5) laws

For more information, see the site Help Documentation.

Plane and Train Wrecks | Online Collections

Investigations of Railroad Accidents 1911 - 1993