Evaluation of ODOT Roadway/Weather Sensor Systems for Snow & Ice Removal Operations – Part V: Vehicular Speed Associated With Winter Pavement Conditions: [Executive Summary]

Details

• Creators:
  Zwahlen, Helmut T.
• Corporate Creators:
  Ohio Research Institute for Transportation and the Environment
• Corporate Contributors:
  Ohio University
• Subject/TRT Terms:
  • Highway safety
  • Driver information systems
  • Speed measurement
  • Snowplows
  • Road weather information systems
  • Highways
  • Maintenance and Preservation
  • Operations and Traffic Management
  • Pavements
  • Vehicles and Equipment
  More +
• Publication/ Report Number:
  FHWA/OH-2006/22
• Resource Type:
  Brief
• Geographical Coverage:
  Ohio ; United States
• Edition:
  Excutive summary
• Corporate Publisher:
  United States. Federal Highway Administration
• Abstract:
  The major objective of the study was to develop a procedure to determine the level of service using the Road Weather Information System (RWIS) speed measurements. The procedure developed can be used by Ohio Department of Transportation (ODOT) to evaluate winter maintenance activities and for winter maintenance decision making. Average traffic speeds for five minute intervals were measured using NuMetrics road sensors and they were related to the pavement and driving conditions. In addition speed data from two other studies was used. The pavement conditions were determined by conducting surveys at rest area buildings using a questionnaire form. It was found that the average traffic speeds were significantly lower during a major snow event even when periodic plowing and salting was done. The average speeds decreased almost linearly for the period of the snow storm reached the minimum and then climbed back slowly towards higher speeds.
• Format:
  PDF
• Funding:
  147580
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/39251/dot_39251_DS1.pdf
• File Type:
  [PDF - 35.41 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:9018bf20ab61b192a354fdd2098540541857214bdd7423eed2d5e6661a285ff7