Multiple Imputation Scheme for Overcoming the Missing Values and Variability Issues in ITS Data

Traffic engineering studies such as validating Highway Capacity Manual (HCM) models require complete and reliable field data. However, the wealth of intelligent transportation systems (ITS) data is sometimes rendered useless for these purposes because of missing values in the data. Many imputation techniques have been developed in the past with virtually all of them imputing a single value for a missing datum. While this provides somewhat simple and fast estimates, it does not eliminate the possibility of producing biased results and it also fails to account for the uncertainty brought about by missing data. To overcome these limitations, a multiple imputation scheme is developed which provides multiple estimates for a missing value, simulating multiple draws from a population to estimate the unknown parameter. This paper also develops a framework of imputation which gives a broad perspective so that one can relate imputation methods to each other.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/8674831
• Authors:
  • Ni, Daiheng
  • Leonard II, John D
  • Guin, Angshuman
  • Feng, Chunxia
• Publication Date: 2005-12

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 931-938
• Serial:
  • Journal of Transportation Engineering
  • Volume: 131
  • Issue Number: 12
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-947X
  • Serial URL: https://ascelibrary.org/journal/jtepbs

Subject/Index Terms

• TRT Terms: Estimating; Highway capacity; Information processing; Intelligent transportation systems; Traffic models
• Identifier Terms: Highway Capacity Manual
• Uncontrolled Terms: Field data; Imputation techniques
• Subject Areas: Highways; Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 01014906
• Record Type: Publication
• Files: TRIS, ATRI
• Created Date: Jan 3 2006 8:19AM