Safe and effective speed reductions for freeway work zones phase 2.

Details

• Creators:
  Gambatese, John A. ; Zhang, Fan
• Corporate Creators:
  Oregon State University. School of Civil and Construction Engineering
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  • Work zone safety
  • Work zone traffic control
  • Speed control
  • Freeways
  • Traffic signs
  • Traffic speed
  • Case studies
• Publication/ Report Number:
  FHWA-OR-RD-15-04
• Resource Type:
  Tech Report
• Geographical Coverage:
  Oregon
• Corporate Publisher:
  Oregon. Dept. of Transportation. Research Section
• Abstract:
  Freeway preservation projects typically require construction workers to conduct their ; work in close proximity to ongoing traffic and often reduce traffic flow to a single lane while work is ; undertaken in an adjacent lane. Due to the short-term nature of these work zones, temporary traffic ; control measures typically consist of a line of cones, blocker vehicles, and impact attenuators. Work ; zones place both the workers and passing motorists at risk of injury. The Oregon Department of ; Transportation conducted a research study to investigate the impact of selected traffic control devices ; on vehicle speeds within highway paving project work zones. The research study, which follows a ; similar study conducted a year earlier, centered around two case studies on multi-lane paving projects ; in Oregon. On each case study, the researchers implemented combinations of multiple traffic control ; devices (“Speed 50” signs, PCMS signs, and radar speed displays) and evaluated their impact on ; vehicle speed. The research findings suggest using a combination of reduced speed limit signs, radar ; speed monitoring displays, and PCMS signs on either trailers or rollers. The results of the present study ; complement those of the prior study and, combined with the prior study, provide ODOT with guidance ; on the selection of traffic control measures for freeway preservation projects.
  More +
• Format:
  PDF
• Funding:
  SPR 769
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/28114/dot_28114_DS1.pdf
• File Type:
  [PDF - 12.61 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:65992cd750d1a58746a90810f8196a195caa933e196a20979fe9443ce678faab59827e4b0894b1024f5f0e878a606cac3038de2a9564c767ad31a4144bac515b