Traffic Signs

Road signs are the elements of roads with a lot of influence in driver-s behavior. So that signals can fulfill its function, they must overcome visibility and durability requirements, particularly needed at night, when the coefficient of retroreflection becomes a decisive factor in ensuring road safety. Accepting that the visibility of the signage has implications for people-s safety, we understand the importance to fulfill its function: to foster the highest standards of service and safety in drivers. The usual conditions of perception of any sign are determined by: age of the driver, reflective material, luminosity, vehicle speed and emplacement. In this way, this paper evaluates the different signals to increase the safety road.

Authors:

• A. Gutiérrez
• A. Castillo
• J. M. Gómez
• J. M. Gutiérrez
• A. García-Cabot

Keywords:

• Luminosity
• orientation
• retroreflection
• traffic signs.

References:

[1] J. Cooper, K. Stafford, P. Owlett and J. Mitchell. CSS Street Lighting
Project SL5/2007. Published Project Report PPR382. Review of the
lighting requirement for traffic signs and bollards.
[2] Jennie Oxley and Brian Fildes. Monash University Accident Research
Centre. Older pedestrian safety issues.
[3] Jennie Oxley, Bruce Corben and Brian Fildes. Monash University
Accident Research Centre. Road environment design for older drivers
[4] Traffic control devices manual. Part 1. General requirements for traffic
signs. December 2008. NZ Transport Agency.
[5] 3M Traffic safety systems, HIP specification guidelines.
[6] Eric D. Hildebrand. Reductions in traffic sign retroreflectivity caused by
frost and dew.