NTL Record

Title Collecting and Analyzing Stakeholder Feedback for Signing at Complex Interchanges
Record ID 61554
Personal Name
Creator
Lichty, Monica G.; Bacon, L. Paige; Richard, Christian M.
Corporate Creator Battelle Seattle Research Center
Corporate
Contributor
United States. Federal Highway Administration. Office of Safety Research and Development
Publisher United States. Federal Highway Administration; Turner-Fairbank Highway Research Center
Publication Date 20141001
Language English
Abstract The purpose of this project was to identify design constraints related to signing, markings, and geometry for complex interchanges, and then to identify useful topics for future research that will yield findings that can address those design issues. Obtaining this feedback was an important way to ensure that future research remains calibrated with the information needs of engineers and other practitioners. This project involved conducting phone interviews with 17 State transportation departments, represented by 28 individuals. These interviews provided information about how stakeholders identify problem interchanges, what types of problems occur, how they can address those problems, and how they deal with unique configurations that are not covered by existing design references. Complex interchanges pose an ongoing challenge to roadway engineers and State transportation department personnel. These interchanges often involve multiple routes that converge or diverge within a short distance, resulting in geometric or signing elements that ultimately cause higher workload for drivers. However, there is no simple definition or single prototype example of a “complex interchange”, and a variety of geometric and signing elements can make different interchanges complex and difficult for drivers to navigate. Consequently, the human factors problems that drivers can face at these interchanges also vary greatly, which is reflected in the wide range of research needs identified by stakeholders. They also see value in additional research and design guidance that would address these information gaps.
Rosap ID dot:35827
Rosap URL https://rosap.ntl.bts.gov/view/dot/35827
TRT Terms Geometric design; Human factors; Interchanges; Interviewing; Stakeholders; State departments of transportation; Surveys; Traffic signs
General Subjects Complex interchanges; Driver behavior; Driver workload; Research needs; Signage
Geographical
Coverage
United States
TRIS Online
Accession No
1542841
Contract Number DTF61-08-D-00032-T-13009
Report Number FHWA-HRT-14-069
Availability Federal Highway Administration
Resource type Tech Report
URL https://ntlrepository.blob.core.windows.net/lib/61000/61500/61554/14069.pdf
Format PDF
Database NTL Digital Repository