IMPLEMENTATION OF WIDER LANE LINES TO IMPROVE SIGHT DISTANCE FROM OPPOSING LEFT-TURN LANES

Vehicles turning left at intersections from opposing left-turn lanes often restrict each other's sight distance. Previous research has developed guidelines for offsetting opposing left-turn lanes to provide adequate sight distances. Implementation of these guidelines at existing intersections typically involves reconstructing the left-turn lanes. However, the results of the before-and-after studies presented demonstrate that increasing the width of the lane lines between left-turn lanes and the adjacent through lanes also can be used as a means of improving the sight distance between opposing left-turn lanes. Regression analysis was used to determine a relationship between lane-line width and available sight distance that can be used to design lane-line widths that provide the required sight distance for opposing left-turn vehicles.

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 12-19
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00799031
  • Record Type: Publication
  • ISBN: 0309066875
  • Files: TRIS, TRB, ATRI
  • Created Date: Sep 27 2000 12:00AM