Traffic Signal Control Strategies for Pedestrians and Bicyclists (2022) / Chapter Skim
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From page 11... ...
11 In the outcome-based approach introduced in the previous chapter, the next step after defining and prioritizing user needs is to define performance measures -- also known as measures of effectiveness (MOEs) -- that indicate the degree to which user needs and operational objectives are met.
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12 Traf c Signal Control Strategies for Pedestrians and Bicyclists Con ict counts can also be used as a performance measure, both as a surrogate for nonmotorized user crashes (which, fortunately, are rare events) and as a direct measure of perceived safety and comfort.
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From page 13... ...
Performance Measures Related to Serving Pedestrians and Bicyclists 13 misleading; counts are needed by minute or per signal cycle, and elements should be sized for a high-demand cycle. An important limitation of pedestrian and bicycle counts to consider is that they may not represent actual demand.
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14 Traffic Signal Control Strategies for Pedestrians and Bicyclists of the Flashing Don't Walk (FDW) interval.
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Performance Measures Related to Serving Pedestrians and Bicyclists 15 For crossings that have to be made in two or more stages, pedestrian delay can be deceptively long and complex to calculate by formula (Wang & Tian, 2010; Ma et al., 2011)
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16 Traffic Signal Control Strategies for Pedestrians and Bicyclists reduce variability and capture a sufficient sample size since individual delay varies depending on when in the cycle a person arrives. 3.5 Bicycle Delay and Average Operating Speed In many cases, bicycle delay closely tracks with vehicular delay or pedestrian delay.
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Performance Measures Related to Serving Pedestrians and Bicyclists 17 3.7.1 Using Centralized Signal Systems Many agencies utilize centralized traffic signal systems with the capability to log data automatically and generate reports with various performance measures. Typically, data is often used for monitoring and maintenance, but it can also be used to support a performance-based improvement process.
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From page 18... ...
18 Traf c Signal Control Strategies for Pedestrians and Bicyclists the cycle and thus restore the intersection to coordination. When the frequency of pedestrian actuations is low, this practice can reduce delay for both pedestrians and vehicles, and it can be especially valuable when applied to a critical intersection whose cycle length governs the cycle length of a corridor.
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From page 19... ...
Performance Measures Related to Serving Pedestrians and Bicyclists 19 Bibliography Furth, P
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