One of the most important factors influencing the conspicuity, comprehension, and compliance with roadside signing is the extent to which such signs meet drivers' expectations. Difficult terrain is virtually synonymous with unusual terrain, which is likely to produce a highway geometry which must violate the driver's expectations in some fashion. When the driver's expectations are not met by the roadway, it is necessary to provide some compensation by roadway construction or by signing to maintain even traffic flow, adequate throughput, and minimal numbers of accidents. Signing issues are the focus of this paper. When drivers' expectations are not met, the drivers are less likely to process signed information; when the signs are processed, they will require more time for this processing; and compliance must be more strongly motivated. (A) For the covering abstract see IRRD 873033.


  • English

Media Info

  • Features: References;
  • Pagination: p. 257-64

Subject/Index Terms

Filing Info

  • Accession Number: 00712388
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 90-5410-343-4
  • Files: ITRD
  • Created Date: Oct 24 1995 12:00AM