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:
  Case Studies Freeways Speed Control Traffic Signs Traffic Speed Work Zone Safety Work Zone Traffic Control
• 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.
  
  
• Format:
  PDF
• Funding:
  SPR 769
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:65992cd750d1a58746a90810f8196a195caa933e196a20979fe9443ce678faab59827e4b0894b1024f5f0e878a606cac3038de2a9564c767ad31a4144bac515b
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/28114/dot_28114_DS1.pdf
• File Type:
  [PDF - 12.61 MB ]