TRB Pubsindex
Text Size:
x

« Prev Next »

Return to Results | New Search

Bookmark and Share

Title:

Use of Cultural Consensus Analysis to Evaluate Expert Feedback of Median Safety

Accession Number:

01031547

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

Cultural consensus analysis is a statistical method to assess participant responses to survey questions. The technique concurrently estimates the knowledge of each survey participant and estimates the correct answer to each question asked, based on the existence of consensus among survey participants. The main objectives of this paper are to present the cultural consensus methodology and apply it to a set of median design and safety survey data that were collected using the Delphi method. The Delphi method is a survey method that is used to gather data when little historical research exists. The Delphi method is performed anonymously and contains several feedback mechanisms in the form of follow-up surveys. In this paper, cultural consensus analysis of 21 Delphi survey participants was performed to estimate the knowledge and correct answers to research questions related to cross-median crashes. It was found that the Delphi panel had agreeable opinions with respect to the influence of ADT and heavy vehicle percentage combination, relative importance of non-geometric factors, and relative importance of geometric factors that influence the likelihood of cross-median crashes. There were, however, diverse opinions regarding barrier type and its preferred placement location. The panel showed a higher level of consensus knowledge on the relative importance regarding the influence of geometric factors on cross-median crashes likelihood than on other issues considered. The results of consensus analysis of survey data could be used to design a focused field study of median safety.

Monograph Accession #:

01020180

Report/Paper Numbers:

06-1750

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Kim, Tae-Gyu
Donnell, Eric T
Lee, Dongmin

Pagination:

26p

Publication Date:

2006

Conference:

Transportation Research Board 85th Annual Meeting

Location: Washington DC, United States
Date: 2006-1-22 to 2006-1-26
Sponsors: Transportation Research Board

Media Type:

CD-ROM

Features:

Figures (1) ; References; Tables (5)

Uncontrolled Terms:

Cross median accidents

Subject Areas:

Bridges and other structures; Data and Information Technology; Design; Highways; Safety and Human Factors; Society; I20: Design and Planning of Transport Infrastructure

Source Data:

Transportation Research Board Annual Meeting 2006 Paper #06-1750

Files:

TRIS, TRB

Created Date:

Mar 3 2006 10:46AM