Enhancing Pedestrian Volume Estimation and Developing HCM Pedestrian Methodologies for Safe and Sustainable Communities (2022) / Chapter Skim
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Pages 157-163
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From page 157... ...
157 Chapter 5. Conclusions and Suggested Research Conclusions Pedestrian Satisfaction with Roadway Crossings Uncontrolled Crossings This research developed a model to estimate pedestrian satisfaction and LOS at uncontrolled crossings based on the AADT of the street being crossed, how often pedestrians experience delay when starting the crossing (accounting for motorist yielding behavior)
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158 It is cautioned that because the purpose of the study was to identify whether LPIs increased pedestrian satisfaction with their crossing experience, the control sites were selected to be comparable to the sites where LPIs had been installed -- typically urban locations with relatively high pedestrian volumes. Developing a more generalized model for signalized crossings will require more data collection, in particular at sites with long cycle lengths (e.g., downtown Baltimore, suburban locations)
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From page 159... ...
159 Revised HCM Delay Methodologies Uncontrolled Crossings Based on the findings documented in Chapter 4, the following conclusions are offered: At sites that do not have a left-turn lane, the revised model can reliably predict the average pedestrian delay. The data collected confirm this conclusion for delays less than 15 s/p.
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From page 160... ...
160 when the segment and intersection LOS scores are equal, while retaining the original method's intent of lowering segment LOS when the pedestrian environment is otherwise good, but the street is hard to cross, and improving segment LOS when the pedestrian environment is poor, but the street is easy to cross. Pedestrian Network QOS Based on the proof-of-concept testing described in Chapter 4, the research team recommends a "connectivity island" approach using the Oregon DOT's PLTS measure for both segments and intersections.
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161 Route directness -- shortest path (if one exists) along the PLTS network between a given origin and destination, compared to the straight-line (air)
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162 turn lane is used by pedestrians as a refuge so they can complete the crossing in two stages. This work would lead to more reliable estimates of pedestrian delay and LOS at uncontrolled crossings where turn lanes are present.
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From page 163... ...
163 – Basic crosswalk operations. Research by the New York City DOT has found that a number of factors affect pedestrian speeds in signalized crosswalks, but the current HCM procedure does not account for these effects.
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