Application of New Pedestrian Level of Service Measures - sacog
Application of New Pedestrian Level of Service Measures - sacog Application of New Pedestrian Level of Service Measures - sacog
Application of New Pedestrian Level of Service Measures SACOG each segment. The MMLOS model is calibrated for signalized intersections. Therefore, only segments with signalized intersections were analyzed with the MMLOS model. The full technical MMLOS model methodology can be found in Appendix A. Pedestrian Performance Measures (PPM) Model Methodology The second model used comes from Transportation Research Record 1538, entitled “Bicycle and Pedestrian Level‐of‐Service Performance Measures and Standards for Congestion Management Systems.” Unlike the MMLOS model, which uses complex and detailed formulas to evaluate pedestrian facilities, the PPM model uses a simple point system (0‐21) that assigns a certain value to each criterion. Facilities earn points based on the number of criteria they meet. Like the MMLOS model, the PPM model considers more than one mode (pedestrian and bicycle), but this Pedestrian Level of Service Analysis only reports the pedestrian score. Also like the MMLOS model, the PPM model output is a numerical value that must be translated into a letter grade LOS. See Exhibit E below for the numerical values that coincide with each LOS letter grade. The PPM model considers the following factors: Presence, condition, and width of the pedestrian facility/sidewalk Maintenance issues with the pedestrian facility/sidewalk Curb cuts Number of driveways and side streets per mile Delay crossing side streets Conflict with left‐ and right‐turning vehicles Side street crossing width Posted speed limit Presence of median Buffer between vehicle traffic and pedestrians Pedestrian amenities (benches, lighting, shade trees) Automobile LOS Transportation Demand Management (TDM) programs and treatments The scoring rubric for the PPM model is shown in Exhibit F. For a full description of the criteria used in the PPM model, see Appendix B. Exhibit E: LOS Letter Grade Numerical Equivalent Score LOS Model > 17 A 17 >= Model > 14 B 14>= Model > 11 C 11 >= Model > 7 D 7 >= Model >3 E Model
Application of New Pedestrian Level of Service Measures SACOG Exhibit F: Pedestrian Level‐of‐Service Performance Measure Point System CATEGORY CRITERION POINTS Facility Not continuous or non‐existent 0 (Max. value = 10) Continuous on one side 4 Continuous on both sides 6 Min. 5’ wide & barrier free 2 Sidewalk width > 5’ 1 Off‐street/parallel alternative facility 1 Conflicts
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<strong>Application</strong> <strong>of</strong> <strong>New</strong> <strong>Pedestrian</strong> <strong>Level</strong> <strong>of</strong> <strong>Service</strong> <strong>Measures</strong><br />
SACOG<br />
Exhibit F: <strong>Pedestrian</strong> <strong>Level</strong>‐<strong>of</strong>‐<strong>Service</strong> Performance Measure Point System<br />
CATEGORY CRITERION POINTS<br />
Facility Not continuous or non‐existent 0<br />
(Max. value = 10) Continuous on one side 4<br />
Continuous on both sides 6<br />
Min. 5’ wide & barrier free 2<br />
Sidewalk width > 5’ 1<br />
Off‐street/parallel alternative facility 1<br />
Conflicts
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