Development of a traffic data input system in Arizona for the MEPDG.

Details

• Creators:
  Darter, Michael I. ; Titus-Glover, Leslie ; Wolf, Dean J.
• Corporate Creators:
  Applied Research Associates, Inc.
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  Data Collection Data Processing Mechanistic Design Pavement Design Pavement Management Systems Rehabilitation (Maintenance) Traffic Data Traffic Volume Vehicle Classification Vehicle Weight
• Publication/ Report Number:
  FHWA-AZ-13-672
• Resource Type:
  Tech Report
• Geographical Coverage:
  Arizona
• Corporate Publisher:
  Arizona. Dept. of Transportation
• NTL Classification:
  NTL-HIGHWAY/ROAD TRANSPORTATION-Design ; NTL-PLANNING AND POLICY-PLANNING AND POLICY
• Abstract:
  Accurate traffic data is one of the key data elements required for the cost-effective design of all rehabilitation and reconstruction of
  
  pavement structures. This research study addresses the collection, preparation, and use of traffic data required for pavement design
  
  by the Arizona Department of Transportation (ADOT), focusing on data required as inputs for the American Association of State
  
  Highway and Transportation Officials (AASHTO) Mechanistic-Empirical Pavement Design Guide (MEPDG) design procedures.
  
  ADOT’s current traffic data collection and preparation processes are not adequate to meet the needs of the MEPDG procedure, and
  
  improvements are needed. These improvements include enhanced volume, classification, and weight data collection for vehicles,
  
  processing data and performing quality assurance checks, and the preparation/analysis of the data for use in the MEPDG. Use of the
  
  MEPDG in Arizona will require (1) an annual flow of updated key traffic data and (2) the ability to collect on-site (MEPDG Level
  
  1) data in a timely manner for key projects.
  
  An action plan (Chapter 8) calls for the establishment of an Arizona Traffic Segment Database that includes all state highways (or
  
  the expansion of an existing traffic database). This database would include all traffic inputs required for the AASHTO MEPDG and
  
  AASHTO 1993 design procedures, as well as ADOT pavement management activities. Traffic segments would be identified by
  
  beginning and ending milepost numbers and global positioning system (GPS) coordinates along each highway.
  
  The researchers propose, and have partly developed, a system for traffic data collection for the MEPDG in Arizona. Level 1 data
  
  collection procedures are provided for selected traffic inputs. ADOT’s traffic data collection group will need to develop a process
  
  for collecting Level 1 data in a timely manner for important projects requested from the pavement design group. This report also
  
  discusses recommended Level 2 and Level 3 inputs, which were prepared based on the best historical data available. These data
  
  represent a good initial set of inputs that can be used over the next few years. However, the inputs should be updated annually using
  
  improved data collection methods beginning as soon as possible.
  
  
• Format:
  PDF
• Funding:
  SPR-PL1(175) 672
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:9d122d3bbb2fbe2b418764f217cb63acfdc5e11da9546b539b2d694a63cb85e4
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/26476/dot_26476_DS1.pdf
• File Type:
  [PDF - 8.50 MB ]