Use of Electronic Passenger Information Signage in Transit (2013) / Chapter Skim
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24 CHAPTER THREE ELEMENTS OF DEPLOYING ELECTRONIC SIGNAGE The Synthesis survey covered several key characteristics of the underlying technology required to generate the information that is displayed on electronic signs, the sign technology, and the displayed information. (Table 3 and Appendix B list of the 37 responding agencies.)
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25 REQUIRED UNDERLYING TECHNOLOGY, AND SIGNAGE TECHNOLOGY AND CHARACTERISTICS Table 4 presents the survey results that indicate the types of underlying technology being used. These results support the concept that CAD/AVL is the primary underlying technology required to determine the real-time information displayed on electronic signage for bus systems.
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26 FIGURE 22 Monterey Salinas Transit DMS (Courtesy: Carol Schweiger 2009)
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27 FIGURE 32 AMT LED sign (Courtesy: AMT 2012)
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28 FIGURE 35 LYNX electronic sign at Orlando International Airport (Courtesy: LYNX 2012)
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29 Figure 40 shows the distribution of what can be displayed on each type of sign. FIGURE 40 Percentage of respondents with signs that can display text, graphics, and video.
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30 Table 8 shows the number of respondents that have signage with internal diagnostics and is capable of sending information to a central location (e.g., sign "health")
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31 TABLE 11 FREQUENCY OF INFORMATION UPDATES USED BY PERCENT OF RESPONDENTS Transit Information Type Update on an ongoing basis (as information changes) Update per defined threshold (e.g., every two minutes)
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32 • For Bus: Due, and For Train: Due (when arrival is under approximately 90 seconds) , Dprt (when a train should be departing or has likely departed between data refresh)
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33 As shown in Figure 42, when audio is provided with the signage, the most-used method is a pushbutton that allows the customer to hear what is displayed on the sign on-demand. FIGURE 42 Percentage of respondents using specific methods to provide audio information.
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34 TABLE 16 USE OF DATA EXCHANGE STANDARDS Data Exchange Standards Response Percent General Transit Feed Specification (GTFS) 39.1 Transit Communications Interface Profiles (TCIP)
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35 CHAPTER FOUR RESOURCE REQUIREMENTS number of factors -- the number of lines and characters available, the colors used, and the like. A limited number of respondents reported the per-unit annual operating and maintenance cost of each type of sign.
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36 and $2 per month. For outdoor LED signs, the power cost reported by five respondents varied from $2 to $50 per month.
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