Validation of HSM Crash Prediction Methods for Specific Intersection Types in Oregon

Details

• Creators:
  Geedipally, Srinivas R. ; Dixon, Karen K. ; Pratt, Michael P. ; Kutela, Boniphace
• Corporate Creators:
  Texas A&M Transportation Institute
• Corporate Contributors:
  Oregon. Department of Transportation. Research Section ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  Calibration Crashes Crash Modification Factors Crash Severity Highway Safety Manual (HSM) Implementation Intersections Manuals Mathematical Prediction Safety Safety Performance Functions (SPF) Three Leg Intersections Urban Areas

  More +
• Publication/ Report Number:
  FHWA-OR-RD-26-04
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Oregon
• Edition:
  Final Report: November 2022 – May 2025
• Corporate Publisher:
  Oregon. Department of Transportation. Research Section
• Abstract:
  The Highway Safety Manual (“HSM”) is the national guidance of quantitative safety analysis used in highway transportation planning, alternatives development, highway design, operations, and maintenance. However, some safety prediction models in the HSM were developed using data from other states, not Oregon. Therefore, it is necessary to validate these models for the implementation in Oregon. Recently the National Cooperative Highway Research Program (“NCHRP”) project 17-68 “Intersection Crash Prediction Methods for the Highway Safety Manual” has developed safety prediction models for more intersection types. The types of intersections include all-way stop control, three-leg intersections with signal control on rural highways, intersections on high-speed urban and suburban arterials, and five-leg intersections, among others. Currently, there is no guidance for how to use these new models in Oregon. Hence, it is necessary to validate these models to facilitate implementation in Oregon. This report documents the research team’s efforts to calibrate intersection models documented in NCHRP 17-68 to Oregon conditions, and to update analysis tools to facilitate implementation of the models.
• Format:
  PDF
• Funding:
  SPR 871
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:fc2373cca2b7aadedab560e14376e4e9b895723f85d62c257c6349a35ed8fd6f9229115599b2cf970b6a262e3c87e6be6267cd583f3ee68d6871ab9351a87365
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/88977/dot_88977_DS1.pdf
• File Type:
  [PDF - 3.82 MB ]