Evaluation of video detection systems, volume 4 : effects of adverse weather conditions in the performance of video detection systems.

Details

• Creators:
  Medina, Juan C. ; Benekohal, Rahim F ; Chitturi, Madhav V.
• Corporate Creators:
  Illinois Center for Transportation
• Corporate Contributors:
  Illinois. Department of Transportation. Bureau of Materials and Physical Research
• Subject/TRT Terms:
  Detection And Identification Systems Digital Video Traffic Monitoring Traffic Safety Traffic Surveillance Digital Video Vehicle Detectors
• Publication/ Report Number:
  FHWA-ICT-09-039;FHWA-ICT-09-039, UILU-ENG-2009-2010
• Resource Type:
  Tech Report
• Geographical Coverage:
  Illinois
• Corporate Publisher:
  Illinois Center for Transportation
• Abstract:
  The performance of three video detection systems (VDS): Iteris, Autoscope, and Peek, was evaluated
  
  using a side-by-side installation at a signalized intersection under various adverse weather conditions including
  
  rain and snow in both day and nighttime, and light fog and dense fog in daytime. Four types of detection errors
  
  (false, missed, stuck-on, and dropped calls) were quantified at stop bar and advance detection zones, and all
  
  errors were visually verified using video images from the intersection. Results indicate that VDS performance
  
  was not greatly impacted under daytime light fog or rain conditions without wind, but significant changes were
  
  observed under dense fog and snow in daytime, and snow and rain in nighttime. During dense fog conditions
  
  Iteris and Autoscope changed their operating mode and placed constant calls due to image contrast loss, with
  
  potential for significant effects on traffic operation, while Peek significantly increased its missed calls. Snow in
  
  daytime and nighttime greatly increased false calls for the three systems (more than 50% of the VDS calls were
  
  false), but it had limited effects on missed, stuck-on, and dropped calls. False calls during rainy conditions
  
  without wind also increased, during both daytime (around 10%) and nighttime (between 10% and 50%), mostly
  
  due to the reflection of headlights of vehicles in the adjacent lanes. Detailed performance of the three VDS in
  
  each of the three stop bars and the three advance zones, as well as potential causes and effects of the most
  
  prominent error types are presented.
  
  
• Format:
  PDF
• Funding:
  ICT- R43
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:8e5a410f2cd8efc2ef4ac0c9f558a0b8679db1968f168ce79b0e575792a29e82acf054e0e8b2364393bdcd33e67f6032eb96abe4b33a74b5f11acd2670117906
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/16715/dot_16715_DS1.pdf
• File Type:
  [PDF - 1.15 MB ]