01081347

Component

http://i95coalition.org/i...ropertyID/187/Default.aspx

Mile marker signs on interstates are both a convenience and a safety measure in that they provide travel progress information to motorists and essential location information for 911 emergency procedures. Motorists who report accidents need to be able to identify the location of a crash, so that first responders will be able to deploy help from the appropriate facility as fast as possible. Providing crash location information becomes more difficult on complex urban highway interchanges. Inadequate ramp designation signing may lead to incorrect locations being called into the 911 dispatcher. This may cause delays in providing aid. The goal of the research performed in this study was to determine mile marker and ramp designation sign effectiveness using Tarvip and a computer based sign comprehension study. Tarvip provided the letter height and the legibility distance of the mile marker and ramp signs, while the comprehension study provided the design, content, and layout of the signs.

01081138

English

11p

2007-4

18th Biennial TRB Visibility Symposium

Digital/other

Figures (8) ; References (2)

Comprehension; Computers; Crashes; Drivers; Interstate highways; Location; Mileposts; Ramps; Safety; Signs; Transportation corridors; Travel

Interstate 95

Designation; Emergency responders

Design; Highways; Planning and Forecasting; Safety and Human Factors; Terminals and Facilities; I21: Planning of Transport Infrastructure

TRIS, TRB, ATRI

Nov 26 2007 3:11PM

• A Review of Disability and Discomfort Glare Research and Future Direction
• Analysis of Modeled Versus On-the-Road Field Luminance of Retroreflective Signs
• Challenges to Implementation of Work Zone Lighting Guidelines
• Comparing Data Collection Scenarios Used for Examining Drivers' Sign Viewing Behavior: Closed Course Versus Open Road Environments
• Development of the Human Factors Guidelines (HFG) for Road Systems
• Driver Understanding of the Purpose of Red Retroreflective Raised Pavement Markings
• Driver-Focused Design of Retroreflective Sheeting for Traffic Signs
• Effect of Outdoor Lighting on Perception and Appreciation of End-Users
• Evaluation of Road-Sign Geometry Parameter Space
• Fluorescent Orange Retroreflective Raised Pavement Marker Color Recognition Study
• Modern Pavement Marking Systems: The Relationship Between Optics and Nighttime Visibility
• Pavement Marking Visibility: Brighter Versus Wider
• Performance Assessment of Vehicle Headlamps
• Recommendations for Minimum Pavement Marking Retroreflectivity Values Based on Tarvip Analyses
• Revealing Power and Road Lighting Design
• The Relationship of Vertical Illuminance to Pedestrian Visibility in Crosswalk