Effectiveness Analysis and Improvement Measures of Hanging Height Limit for Signs

The location of warning signs is a significant factor that impacts their effectiveness. This paper analyzes the main features of accident vehicles and height limiters through ANOVA according to the data of vehicle crash limit overhead accidents. The effectiveness of the hanging height limit sign in the driver’s visual recognition process is analyzed. Using the driver’s visual recognition process of the roadside sign, the safety pre-distance model of the front limit sign is proposed and verified by an example. The results show: (1) when the height difference between the accident vehicle and the height limit is between 0 and 0.6 m, the accident is most likely to occur; (2) hanging height limit warning signs can’t meet the demand for large cars safe driving; and (3) the proposed model can help determine the safe setting position of the roadside limit sign and improve the effectiveness of the limit sign.


  • English

Media Info

  • Media Type: Web
  • Pagination: pp 3897-3909
  • Monograph Title: CICTP 2020: Transportation Evolution Impacting Future Mobility

Subject/Index Terms

Filing Info

  • Accession Number: 01768418
  • Record Type: Publication
  • ISBN: 9780784483053
  • Files: TRIS, ASCE
  • Created Date: Dec 9 2020 3:06PM