Agenda - Council - 07/22/2008 - Laserfiche WebLink

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amount of attention required to read roadside advertisements could lead to driving errors that could cause crashes. . "71~.e enorna.ous flexibility of display possessed by CEVMS makes it possible to use them in ~a~ays t1~.at can att~•act drivers' attention at greater distar7ces, hold their attention longe~•, and deliver a eider variet)~ of information anal ia~zage stimuli than is possible by tJ~.e use of conventi.o~zal advertising sigi2s. " Texas Transportation Institute for FHWA, Impacts of Using Dynamic Features to Display Messages on Changeable Message Signs (Dudek et al., 2005) iZ This study exanlined the comprehension times for. three different scenarios .for DOT-operated changeable message signs. The scenarios evaluated were: • Flashing an entire one-phase message • Flashing one line of a one-phase message while tt~~o other lines of the message remain constant • Alternating text on one line of athree-line CMS while keepuzg the other two lines of text constant on the second phase of the message The findings of this study «lere; • Flashuig messages did not produce faster reading times. • Flashing messages may have an adverse effect on message comprehension for unfamiliar drivers. • Average reading, times for flashing line messages and two-phase messages were. significantly longer than for alternating.messages... • Message comprehension was negatively affected by flashing 1u7e messages. ~uliile this research did not- evaluate advertising-related signs, it does. demonstrate that flashing signs require more of the driver's time and attention to comprehend the message. In the case of electronic billboards; this suggests that billboards that flash may require more time and, attention to read than static ones. 3.3.1 OTHER INFORMATION NHTSA Driver Distraction Internet Forum (2000)13 The National Highway Traffic Safety Administration held an Internet forum to gather research aild public comment related to. driver distraction with an emphasis on the use of cell phones,.navigation systems; «~ireless hiternet and other in-vehicle devices. During this forum, participants were invited to take a poll to determine the most prominent driver X12 -220-