In-Vehicle Signing Functions of an In-Vehicle Information System

Details

• Creators:
  Knee, Helmut E. ; Spelt, Philip F. ; Tufano, Daniel R.
• Corporate Creators:
  Oak Ridge National Laboratory
• Subject/TRT Terms:
  Driver Information Systems Drivers In Vehicle Information System In Vehicle Signing Legibility Reaction Time Sight Distance Signs Traffic Engineering Visibility Distance
• Resource Type:
  Research Paper
• Geographical Coverage:
  United States
• Corporate Publisher:
  Oak Ridge National Laboratory
• Abstract:
  The definition of In-Vehicle Signing (IVS) functions was guided by the principles of traffic engineering as they apply to the design and placement of roadway signs. Because of the dynamic and active nature of computing, communications, and display technology, IVS can fulfill the signing principles of traffic engineering in ways that have been impossible with conventional signage. Current signing technology represents a series of compromises of these principles, especially the data and equations contributing to the calculation of required sight distance. A number of conditions relevant to sight distance are quite variable, e.g.: vehicle speed, visibility, weather, and driver reaction time. However, conventional signing requires that there are fixed values of each variable for the determination of (e.g.) legibility distance. IVS, on the other hand, will be able to tailor the timing of sign presentation to the dynamically diverse variable values of all of these conditions. A clear, in-vehicle sign display, adaptive to ambient and driver conditions, will in fact obviate the entire issue of sign legibility. These capabilities, together with information filtering functions, will truly enhance the presentation of sign information to drivers. The development of IVS is a critical step in the development of an integrated In-Vehicle Information System (IVIS).
• Format:
  PDF
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:97bcf0e859e077d499f1b983e63b9351d69b5aa692ed9ceaa497ae9a692dc2c5e80d471b4eaaaddcf3d0b1fd02c34629a21f8cb66808ce99c1d95d65ae46efda
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/13547/dot_13547_DS1.pdf
• File Type:
  [PDF - 1.08 MB ]