Safety Treatment of Roadside Parallel-Drainage Structures

Details

• Creators:
  Ross Jr, Hayes E. ; Hirsch, T. J. ; Sicking, Dean
• Corporate Creators:
  Texas Transportation Institute. Texas A&M University
• Corporate Contributors:
  Texas State Department of Highways and Public Transportation ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  • Culverts
  • Drainage
  • Safety
  • Roadside
  • Tests
  • Benefit cost analysis
  • Driveways
  • Computers
  • Simulation
  • Guidelines
• Publication/ Report Number:
  FHWA/FX-81/50+280-2F
• Resource Type:
  Tech Report
• Geographical Coverage:
  Texas ; United States
• Edition:
  Final Report: September 1979 - June 1981
• Corporate Publisher:
  Texas Transportation Institute. Texas A&M University
• Abstract:
  The purpose of the research was to develop traffic-safe end treatments for parallel-drainage structures that would not appreciably restrict water flow. Guidelines or warrants for use of the end treatments were also developed. Parallel-drainage culverts are used to convey water under driveways, side roads, or median crossovers. Preliminary designs were first evaluated using a computer simulation program and a full-scale test program. From these studies, tentative design parameters were selected, including the ditch and driveway slopes and the grate spacing. The end treatment developed in the preliminary studies was then subjected to full-scale prototype testing. These tests involved evaluation of the end treatment on a 6.7 to 1 driveway slope with a subcompact automobile. The end treatment was subjected to tests at 40 mph (64.4 km/h) and 50 mph (96.5 km/h). A benefit/cost analysis was conducted to determine warrants for the use of the treatments.
• Format:
  PDF
• Funding:
  2-8-79-280
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/85147/dot_85147_DS1.pdf
• File Type:
  [PDF - 11.80 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:e7122a66cc8162b238f17a674876a3f08b25b82151b8c14826be9b4ee84ba220f442df38f1a7fe5b2644415807192dfb3d09dcb14cda0be738f066f6bc9046dc