Estimation of average daily traffic on local roads in Kentucky.

Details

• Creators:
  Souleyrette, Reginald R. ; Howell, Brian K. ; Green, Eric ; Staats, William
• Corporate Creators:
  University of Kentucky Transportation Center ; University of Kentucky. College of Engineering
• Corporate Contributors:
  Kentucky. Transportation Cabinet ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Annual average daily traffic
  • Highway curves
  • Intersections
  • Literature reviews
  • Probe vehicles
  • Registrations
  • Regression analysis
  • Sensitivity analysis
  • Traffic estimation
  • Vehicle miles of travel
  More +
• Publication/ Report Number:
  KTC-16-13/FRT201-15-1F
• DOI:
  http://dx.doi.org/10.13023/KTC.RR.2016.13
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Kentucky
• Corporate Publisher:
  University of Kentucky Transportation Center
• Abstract:
  Kentucky Transportation Cabinet (KYTC) officials use annual average daily traffic (AADT) to estimate intersection ; performance across the state maintained highway system. KYTC currently collects AADTs for state maintained ; roads but frequently lacks this information on local roads. A method is needed to estimate local road AADTs in a ; cost-effective and reasonable manner. Kentucky Transportation Center (KTC) researchers conducted a literature ; review on U.S. AADT models but found that none of them were suitable to Kentucky. Therefore, KTC developed an ; AADT model using non-linear regression to estimate AADTs on approaches to those intersections. ; KTC developed a Poisson distributed, non-linear regression model to estimate AADT. This model divided the state ; into three regions encompassing all of the highway districts: West (Districts 1, 2, 3, and 4), North Central (Districts ; 5, 6, and 7), and East (Districts 8, 9, 10, 11, and 12). This partitioning accounted for geographic and socioeconomic ; variability across the state. Each regional model relied upon three independent variables: probe count, residential ; vehicle registration, and curve rating. HERE proprietary probe counts—indicative of vehicle movements—provide ; tracking visibility on a select portion of vehicles moving across Kentucky highways. Residential vehicle ; registrations can be used to estimate trip generation information. Finally, the curve rating partially indicates ; accessibility. ; Model results were adjusted to KYTC daily vehicle miles traveled (DVMT) county control totals for local roads. ; Sensitivity analysis was conducted to examine the impact of model errors for use in intersection safety analysis. ; Results indicate that the estimates generated can be effectively used for safety assessment and countermeasure ; prioritization.
  More +
• Format:
  PDF
• Funding:
  FRT 201
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/31019/dot_31019_DS1.pdf
• File Type:
  [PDF - 2.10 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:c6848e96f9f28f9bc9a0c8088dc806fe2fda123c71f223310275f05bf0b1f54d