Evaluation of automated flagger assistance devices : interim report.

Details

• Creators:
  Brown, Henry ; Sun, Carlos ; Zhang, Siyang ; Qing, Zhu
• Corporate Creators:
  University of Missouri--Columbia. Department of Civil and Environmental Engineering
• Corporate Contributors:
  Missouri. Department of Transportation. Construction and Materials Division ; United States. Federal Highway Administration
• Subject/TRT Terms:
  Automation Barriers (Roads) Field Tests Flaggers Lane Closure Traffic Control Devices Truck Mounted Attenuators Variable Message Signs Work Zone Safety Work Zone Traffic Control
• Publication/ Report Number:
  cmr 17-010
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Interim Report
• Corporate Publisher:
  Missouri. Department of Transportation
• Abstract:
  Flagger safety is an important issue in work zones due to the proximity of the flagger to traffic. Some strategies for improving
  
  flagger safety include slowing down approaching vehicles or removing flaggers from the immediate vicinity of traffic. The
  
  Automated Flagger Assistance Device (AFAD) is a system that can potentially accomplish both of the aforementioned strategies.
  
  In order to validate the effectiveness of AFADs in highway work zones, field testing was performed using an AFAD with a
  
  Changeable Message Sign (CMS) on a 2-lane work zone in Missouri. The field study found that AFADs helped to lower
  
  approach speeds and encouraged vehicles to stop farther behind the AFAD than a traditional flagger. In addition, a driver
  
  intercept survey found that the AFAD was viewed favorably by the general public. These field results found that AFADs are
  
  more effective than human flaggers, and drivers prefer AFADs over human flaggers.
  
  Author ORCID information:
  
  Carlos Sun - https://orcid.org/0000-0002-8857-9648
  
  
• Format:
  PDF
• Funding:
  MoDOT project #TR201717
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:a0885bd7a6e9ad93566ca75d6f95b9fb0d9c4b9e8dc51b1bc6c035147d53f06e04dc9f0c8223135720eadc789c1619e496b769a37fc0b25490318c34e0c110f2
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/32620/dot_32620_DS1.pdf
• File Type:
  [PDF - 2.13 MB ]