Digital Map Requirements For Automatic Vehicle Location

Details

• Creators:
  Greenfeld, J
• Subject/TRT Terms:
  Recommendations,Accuracy,Arrivals and departures,Automatic vehicle location,Bus transit operations,Digital maps,Fleet management,Geographic information systems
• Resource Type:
  Research Paper
• Corporate Publisher:
  New Jersey Institute of Technology
• Abstract:
  New Jersey Transit (NJT) is currently investigating acquisition of an automated vehicle locator (AVL) system. The purpose of the AVL system is to monitor the location of buses. Knowing the location of a bus enables the agency to manage the bus fleet more efficiently and to provide their customers with up to the minute information on bus arrivals and departures. To monitor the location of the buses, their positional information (as determined by the AVL) is displayed on a digital map such as geographic information system (GIS). To ensure accurate information, the location (coordinates) of the bus must be consistent (or within a small tolerance) with those of the digital map. If this is not the case, the system may yield incorrect information. This problem may become especially critical in an urban area where the system would be most valuable. In this project, a methodology was developed for testing and evaluating the accuracies of an AVL system and supporting digital maps. The AVL system analyzed in this project was the Continuous Positioning System (CPS) by Andrew Corporation. Digital mapping products evaluated were TIGER/LINE, NAVTECH and Digital Orthophotos. The above data sets were evaluated with an accurate network of control points measured by Global Positioning System (GPS). Following the analysis of this study, some recommendations on the appropriateness of the tested AVL system and NJT's digital mapping data were made.
• Format:
  PDF
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:786cdb65b2dd10f327235997d9b30f627374a188bf26fb1ce193045f54e743a4
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/14426/dot_14426_DS1.pdf
• File Type:
  [PDF - 4.06 MB ]