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Open Access Publications from the University of California

Coding Of Road Information For Automated Highways

  • Author(s): Guldner, J.;
  • Patwardhan, S.;
  • Tan, H.-s.;
  • Zhang, W.-b.
  • et al.

This paper discusses coding of road information in a lateral reference system using magnetic markers designed for Automated Highway Systems ( AHS). The coding is utilized to communicate road information such as up- coming road geometry or lane merges/diverges from the roadway infrastructure to AHS vehicles. The work presented here is based on experiences with the preparation of the I-15 test track near San Diego, CA, for the National AHS Consortium demonstration in 1997. Information about road features was encoded into the magnets used as a lateral reference system for automatic steering control by exploiting binary polarity coding.

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