vehicledriverroadwaycrashcitation and adjudicationinjury surveillance
NHTSA's data measures
 
 

core traffic records systems

The Safety Portal is organized around NHTSA's six core traffic records data systems (illustrated here using NHTSA's new iconography). To access the related brochure for each system component, click on the icon (below, left).

vehicle icon

vehicle

history, registration, and owner data

driver icon

driver

history and license data

roadway icon

roadway

highways, roads, and streets inventory data

crash icon

crash

law enforcement reports data

citation icon

citation & adjudication

ticket-through-courts data

ems icon

injury surveillance

vehicle-related injuries, fatalities, and emergency medical response data

performance measures

NHTSA uses 61 performance measures, grouped into six performance attributes, across the six core traffic record data systems (see above). To access NHTSA's definition of each measure, click on the icon (below, left).

timeliness icon

timeliness

span of time between an occurrence and information entry into the appropriate database

accuracy icon

accuracy

degree that data are error-free, consistent, and not duplicated within the database

completeness icon

completeness

number of records that are missing and the number of blank data elements in the records

uniformity icon

uniformity

consistency among files or records in a database, measured against an independent standard

integration icon

integration

ability of records in a database to be linked to records in another of the six core databases

accessibility icon

accessibility

ability of principal users to obtain desired data, measured in terms of customer satisfaction

top of page

NHTSA's grid

NHTSA recommends that stakeholders use the grid to evaluate traffic records systems and quantify systemic improvements.
grid image
 
 
 
As NHTSA's resource guide explains, "The model performance measures are intended to help States monitor and improve the quality of the data in their traffic record systems. Specifically, States can use these measures to develop and track performance goals in their Traffic Records Strategic Plans, Traffic Records Assessments, and Highway Safety Plans; establish data quality improvement measures for specific traffic records projects; and support data improvement goals in the Strategic Highway Safety Plan."