Application of Crash Modification Factors for Access Management, Volume 1: Practitioner's Guide (2021) / Chapter Skim
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Pages 140-155
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140 This appendix provides a summary of each variable by land use and region. These summary statistics are used in aspects of the model application, such as identifying the applicable region and using default values for the models.
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Summary Statistics by Land Use and Region 141 Table D-2. Summary statistics for Minnesota mixed-use land use.
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142 Application of Crash Modification Factors for Access Management Nomedoplt Number of median openings with a left-turn lane 14 0.00 16.00 3.71 4.03 Nomedopnolt Number of median openings without a left-turn lane 14 0.00 3.00 0.36 0.93 Speed_limit Posted speed limit (mi/h) 18 30 60 42 10.18 avgAADT Average AADT 18 7,561 42,903 23,787 9,806 Spcofflt Minimum spacing from off-ramp to available left turn onto mainline from same side of road (ft)
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Summary Statistics by Land Use and Region 143 Table D-3. Summary statistics for Northern California mixed-use land use.
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144 Application of Crash Modification Factors for Access Management Number of median openings with a left-turn lane 20 0.00 12.00 2.75 3.39 Nomedopnolt Number of median openings without a left-turn lane 20 0.00 1.00 0.10 0.31 Speed_limit Posted speed limit (mi/h) 20 30 55 40 7.05 avgAADT Average AADT 20 10,018 86,773 33,724 17,160 Spcofflt Minimum spacing from off-ramp to available left turn onto mainline from same side of road (ft)
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Summary Statistics by Land Use and Region 145 Variable Name Variable Description Corridors Minimum Maximum Mean St.
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146 Application of Crash Modification Factors for Access Management Table D-5. (Continued)
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Summary Statistics by Land Use and Region 147 Table D-6. (Continued)
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148 Application of Crash Modification Factors for Access Management Table D-7. Summary statistics for Northern California commercial land use.
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Summary Statistics by Land Use and Region 149 Table D-7. (Continued)
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150 Application of Crash Modification Factors for Access Management Table D-8. (Continued)
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Summary Statistics by Land Use and Region 151 Table D-9. (Continued)
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152 Application of Crash Modification Factors for Access Management Table D-10. (Continued)
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Summary Statistics by Land Use and Region 153 Table D-11. Summary statistics for Northern California residential land use.
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154 Application of Crash Modification Factors for Access Management Table D-11. (Continued)
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Summary Statistics by Land Use and Region 155 Table D-12. (Continued)
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