Estimating roadside encroachment rates with the combined strengths of accident- and encroachment-based approaches

Details

• Creators:
  Miaou, Shaw-Pin
• Corporate Contributors:
  United States. Department of Transportation. Federal Highway Administration. Turner-Fairbank Highway Research Center
• Subject/TRT Terms:
  • Roadside
  • Two lane highways
  • Width
  • Crash data
  • Highway grades
  • Rural highways
  • Traffic lanes
  • Annual average daily traffic
  • Estimating
  • Curvature
  More +
• Publication/ Report Number:
  FHWA-RD-01-124
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Final report ; February 28, 1998 ¿ September 21, 2001
• Contracting Officer:
  Joe Bared
• Corporate Publisher:
  Oak Ridge National Laboratory
• Abstract:
  In two recent studies by Miaou, he proposed a method to estimate vehicle roadside encroachment rates using accident-based models. He further illustrated the use of this method to estimate roadside encroachment rates for rural two-lane undivided roads using data from the Seven States Cross-Section Data Base of the Federal Highway Administration (FHWA). The results of his study indicated that the proposed method could be a viable approach to estimating roadside encroachment rates without actually collecting the encroachment data in the field, which can be expensive and technically difficult. This study tested the consistency of Miaou's approach using two data sets from FHWA's Highway Safety Information System (HSIS). In addition, by synthesizing the models developed from this and previous studies, a roadside encroachment rate estimation model was recommended. The model allows the rates to be estimated by average annual daily traffic volume, lane width, horizontal curvature, and vertical grade for rural two-lane undivided roads.
• Format:
  PDF
• Funding:
  DTFH61-94-Y-00107
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/14637/dot_14637_DS1.pdf
• File Type:
  [PDF - 318.44 KB]
• Collection(s):
  US Transportation Collection ; Federal Highway Administration
• Main Document Checksum:
  urn:sha-512:09e98ffcf8f6f66193ff5af8992c59697eff6d37bee8889d942c33e35dc36faa4bd1ce5f9ef6147f7059dfdaf87ad6d4244356e4569e2e8e2397246e28015c43