Evaluation of Post-Mounted Delineators and Curve Warning Message Markings Phase 1: Designing a Sampling Plan

Details

• Creators:
  Appiah, Justice ; Cho, Hyun W. ; Cottrell, Benjamin H. Jr.
• Corporate Creators:
  Virginia Transportation Research Council (VTRC)
• Corporate Contributors:
  Virginia. Department of Transportation ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  Crash Modification Factors Evaluation Highway Curves Highway Delineators Highway Safety Ran Off Road Crashes Warning Signs
• Publication/ Report Number:
  FHWA/VTRC 25-R20
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Virginia
• Edition:
  Final Report
• Corporate Publisher:
  Virginia Transportation Research Council (VTRC)
• Abstract:
  In 2022, the Virginia Transportation Research Council published Guidance for and Effectiveness of Low-Cost Delineation Treatments, a report that evaluated the effectiveness of several low-cost delineation countermeasures (Flintsch et al., 2022a). That report recommended that the Virginia Department of Transportation (VDOT) consider a pilot study of using post- mounted delineators (PMDs) and curve warning message markings (CWMMs). In response, this study’s purpose was to design a sampling plan to evaluate the safety effectiveness of PMDs and CWMMs. The research team conducted a literature review, chose a countermeasure design for PMDs and CWMMs, and designed a statistically robust sampling plan. This study is the first phase of a three-phase effort to evaluate PMDs and CWMMs by deploying them on a sample of VDOT roads. A second phase, a future technical assistance study, will deploy the sampling plan and monitor PMDs and CWMMs in the field following the plan developed in the phase 1 study. A third phase of the study will conduct the before-and-after crash analysis, crash modification factor development, and benefit-cost analysis.
• Format:
  PDF
• Funding:
  124130
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:e3a2002540d81402e350803953c385eabc90dceb6803fc52af3a5428040244a25da6c2bc887ca7d8e7367f89609bc7fbc92234a089a572623cfb6b19a9a9dd18
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/83863/dot_83863_DS1.pdf
• File Type:
  [PDF - 4.09 MB ]