U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000

Skip to content
Facebook iconYouTube iconTwitter iconFlickr iconLinkedInInstagram

Federal Highway Administration Research and Technology
Coordinating, Developing, and Delivering Highway Transportation Innovations

Report
This report is an archived publication and may contain dated technical, contact, and link information
Publication Number: FHWA-HRT-04-139
Date: December 2005

Enhanced Night Visibility Series, Volume VIII: Phase II—Study 6: Detection of Pavement Markings During Nighttime Driving in Clear Weather

PDF Version (554 KB)

PDF files can be viewed with the Acrobat® Reader®

APPENDIX I—PAVEMENT MARKING MEAN DETECTION DISTANCES AND SNK GROUPINGS FOR THE VES MAIN EFFECT

 

Table 12. Mean beginning and ending detection distances and SNK groupings (means with the same letter are not significantly different) of pavement markings for the VES main effect.
VES Beginning
Detection
Distance (ft)		 Ending
Detection
Distance (ft)
HLB Mean: 297.6
AB		 Mean: 250.5
A
Hybrid UV–A + HLB Mean: 307.5
A		 Mean: 241.1
AB
Three UV–A + HLB Mean: 294.1
AB		 Mean: 243.1
AB
Five UV–A + HLB Mean: 294.4
AB		 Mean: 251.0
A
HID Mean: 253.9
CD		 Mean: 198.6
CDE
Hybrid UV–A + HID Mean: 263.0
C		 Mean: 195.7
DE
Three UV–A + HID Mean: 251.1
CD		 Mean: 206.8
CDE
Five UV–A + HID Mean: 258.4
CD		 Mean: 217.1
CD
HOH Mean: 285.1
B		 Mean: 245.7
A
HHB Mean: 256.0
CD		 Mean: 221.4
BC
HLB–LP Mean: 241.2
D		 Mean: 184.5
E

  1 ft = 0.305 m

 

Previous    Table of Contents    Next

Return to top

Privacy Policy | Freedom of Information Act (FOIA) | Accessibility | Web Policies & Notices | No Fear Act | Report Waste, Fraud and Abuse
U.S. DOT Home | USA.gov | WhiteHouse.gov

Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000
Turner-Fairbank Highway Research Center | 6300 Georgetown Pike | McLean, VA | 22101