Effects of edge rate on perceived egomotion in a driving environment.

Loading...
Thumbnail Image

Persistent link to this item

Statistics
View Statistics

Journal Title

Journal ISSN

Volume Title

Title

Effects of edge rate on perceived egomotion in a driving environment.

Published Date

2009-12

Publisher

Type

Thesis or Dissertation

Abstract

Automobile drivers have a tendency to make judgments of their perceived rate of travel, or egospeed, that are slower than the speed they are actually traveling. This often leads them to drive at faster speeds, which results in increased crash risk for themselves and other vehicles. A driver's egospeed can be affected by visual cues in the environment including Edge Rate (ER) optical effects. The purpose of this research was to examine how speed production would be affected by (1) the presence and distance of roadside (geographic) ER cues; (2) proximal ER cues such as traffic moving at faster, similar, or slower speeds than the driver; and (3) the combined presence of geographic and traffic ER cues. A novel methodology had participants drive at comfortable and ratio speeds while experiencing 10 continuous minutes of each ER condition. Performance was examined in terms of: mean speed choice; ratio speed-production performance (target ratio); speed consistency (speed drift ratio, reliability ratio); and judgments of task difficulty (ease rating). Data suggested that certain cues reduced a driver's comfortable speed of travel: the presence of geographic ER cues; closer-distance geographic ER cues; slower-speed-traffic ER cues; and the pairing of geographic ER with slower-speed-traffic ER cues. Data showed that a reduction in traffic speeds may be produced by increasing the saliency of ER cues in the environment regardless of traffic conditions.

Description

University of Minnesota Ph.D. dissertation. December 2009. Major: Psychology. Advisors: Herbert L. Pick, Jr. and Charles R. Fletcher. 1 computer file (PDF); ix, 204 pages, appendices A-G. Ill. (some col.)

Related to

Replaces

License

Collections

Series/Report Number

Funding information

Isbn identifier

Doi identifier

Previously Published Citation

Other identifiers

Suggested citation

Rakauskas, Michael E.. (2009). Effects of edge rate on perceived egomotion in a driving environment.. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/58935.

Content distributed via the University Digital Conservancy may be subject to additional license and use restrictions applied by the depositor. By using these files, users agree to the Terms of Use. Materials in the UDC may contain content that is disturbing and/or harmful. For more information, please see our statement on harmful content in digital repositories.