Sign Luminance Requirements for Various Background Complexities PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Sign Luminance Requirements for Various Background Complexities PDF full book. Access full book title Sign Luminance Requirements for Various Background Complexities by Douglas J. Mace. Download full books in PDF and EPUB format.
Author: Douglas J. Mace
Publisher:
ISBN:
Category : Reflective materials
Languages : en
Pages : 48
Get Book Here
Book Description
The Federal standards (FP-79) for luminance of retroreflective materials for traffic signs are acceptance standards; they provide no differentiation based on driver need. Driver needs for sign luminance are of 3 types -- luminance for sign comprehension, luminance levels that define sign legibility, and luminance levels for sign conspicuity. This study was directed toward establishing, for different levels of scene complexity, luminance levels for conspicuity of yellow diamond warning signs at night. A procedure based upon rating sign locations on 4 scales was useful for identifying low complexity and high complexity scenes.
Author: Douglas J. Mace
Publisher:
ISBN:
Category : Reflective materials
Languages : en
Pages : 48
Get Book Here
Book Description
The Federal standards (FP-79) for luminance of retroreflective materials for traffic signs are acceptance standards; they provide no differentiation based on driver need. Driver needs for sign luminance are of 3 types -- luminance for sign comprehension, luminance levels that define sign legibility, and luminance levels for sign conspicuity. This study was directed toward establishing, for different levels of scene complexity, luminance levels for conspicuity of yellow diamond warning signs at night. A procedure based upon rating sign locations on 4 scales was useful for identifying low complexity and high complexity scenes.
Author: John L. Campbell
Publisher: Transportation Research Board
ISBN: 0309154693
Category : Technology & Engineering
Languages : en
Pages : 111
Get Book Here
Book Description
NCHRP report 600 explores human factors principles and findings for consideration by highway designers and traffic engineers. The report is designed to help the nonexpert in human factors to consider more effectively the roadway user's capabilities and limitations in the design and operation of highway facilities.
Author:
Publisher:
ISBN:
Category : Reflective materials
Languages : en
Pages : 116
Get Book Here
Book Description
Author: Douglas J. Mace
Publisher:
ISBN:
Category :
Languages : en
Pages : 120
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Automobile driving at night
Languages : en
Pages : 120
Get Book Here
Book Description
In this research, the minimum amount of luminance required by older and younger drivers to identify a numerical legend on yellow warning signs at night was investigated. A field study was conducted for subjective and objective evaluation of seven yellow warning signs on a simulated two-way rural highway. The signs were prepared to have different retroreflectivity values thus providing different luminance values to the subjects.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 838
Get Book Here
Book Description
Author: Kent L. Black
Publisher: Transportation Research Board
ISBN: 9780309048699
Category : Transportation
Languages : en
Pages : 60
Get Book Here
Book Description
Author: National Research Council (U.S.). Transportation Research Board
Publisher: Transportation Research Board National Research
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 114
Get Book Here
Book Description
Author: Frank D. Shepard
Publisher:
ISBN:
Category : Traffic signs and signals
Languages : en
Pages : 34
Get Book Here
Book Description
This study was conducted to investigate ways of increasing the legibility of signs with high background brightness. Research was limited to silver, yellow, and orange encapsulated lens sheeting materials, and modifications were made within the standards for highway signs as specified in the Manual on Uniform Traffic Control Devices. The results of the study show that in Virginia the legibility of selected signs with high background brightness can be increased by modifying the letter design.
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Department of Transportation and Related Agencies Appropriations
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 946
Get Book Here
Book Description
