EFFECT OF DOTTED EXTENDED LANE LINES ON RIGHT SINGLE DECELERATION LANE USE

With the use of dotted extended lines at tapered and parallel single deceleration lanes at right hand freeway exits, a significantly greater proportion of exiting traffic entered the deceleration lane earlier in nine out of ten study sites. Two foot (0.6 meter) lines with 25 foot (7.6 meter) gaps were placed in the neutral area of five tapered and five parallel decleration lanes on interstate freeways in New Jersey. The application followed a before study while leaving a sufficient time prior to an after study at each location. Two control sites were also studied and did not receive dotted lines. Four additional exits were treated with dotted lines to help relieve a possible novelty effect. The installation of dotted lines appeared to have a more pronounced effect on the paths of exiting traffic using the longer deceleration lanes.

• Record URL:
  http://www.nj.gov/transportation/business/research/reports/FHWA-NJ-1977-011-7714.pdf
• 
• Supplemental Notes:
  • Sponsored by DOT, Federal Highway Administration.
• Corporate Authors:

  New Jersey Department of Transportation

  1035 Parkway Avenue
  Trenton, NJ  United States  08625
• Authors:
  • Keck, W D
  • Roberts, A W
• Publication Date: 1977-5

Media Info

• Pagination: 37 p.

Subject/Index Terms

• TRT Terms: Deceleration lanes; Lane lines; Ramps (Interchanges)
• Old TRIS Terms: Bearing pads; Freeway entrances and exits
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00176554
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Report/Paper Numbers: FHWA-NJRD77-011-7714Final Rpt.
• Contract Numbers: NJ Study 7714
• Files: TRIS, USDOT, STATEDOT
• Created Date: Jul 29 1978 12:00AM