Alternative Intersection Design and Selection (2020) / Chapter Skim
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Pages 12-34
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12 Literature Review This chapter presents the results of the literature review for alternative intersection design and selection. The chapter is organized into the following sections: guidance, policies, screening and analysis tools, operational and safety evaluations, considerations for bicyclists and pedestrians, constructability, and public perception.
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Literature Review 13 Continuous Green-Ts (CGTs) , and SPDIs (Hughes et al.
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14 Alternative Intersection Design and Selection bicyclists and pedestrians, pavement markings, signing, lighting, and public involvement (Minnesota DOT 2016a, Missouri DOT 2019, Utah DOT 2014)
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Literature Review 15 (Utah DOT 2014) Figure 11.
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16 Alternative Intersection Design and Selection acceleration lanes based on a micro-simulation study (Claros et al.
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Literature Review 17 Diverging Diamond Interchanges In an evaluation of Utah's first diverging diamond interchange (DDI) , Rasband et al.
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18 Alternative Intersection Design and Selection which engineers follow a flowchart in both stages to arrive at the best intersection alternative. The Stage 1 and Stage 2 decision trees from Indiana's ICE policy are shown in Figure 15 and Figure 16, taken from Indiana's Intersection Decision Guide (IDG)
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Literature Review 19 (Bowen et al.
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20 Alternative Intersection Design and Selection (Bowen et al.
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Literature Review 21 (Gyawali 2014) Major Approach Volume (vph)
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22 Alternative Intersection Design and Selection provides volume-to-capacity ratio as output based on critical lane analysis and an evaluation of pedestrian and bicycle accommodations for different types of intersections and service interchanges (Jenior, Haas, Butsick, and Ray 2018b)
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Literature Review 23 practitioners determine the intersection and interchange types that are most suitable for a given location (Virginia DOT 2018)
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24 Alternative Intersection Design and Selection programming and field analysis. Safety studies are generally based on the analysis of data from one or more states.
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Literature Review 25 (Utah DOT 2013) Figure 21.
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26 Alternative Intersection Design and Selection Diverging Diamond Interchange Several operational studies of diverging diamond interchanges (DDIs) have been done, mostly based on micro-simulation.
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Literature Review 27 2016b)
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28 Alternative Intersection Design and Selection (Jagannathan 2007b) Figure 24.
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Literature Review 29 Roundabout As described in NCHRP Synthesis 488 on roundabout practices (Pochowski et al.
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30 Alternative Intersection Design and Selection roads appeared to inhibit performance (Dorothy et al.
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Literature Review 31 (Imagery ©2019 Google, Imagery ©2019 Maxar Technologies, U.S. Geological Survey, USDA Farm Service Agency, Map data ©2019 Google)
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32 Alternative Intersection Design and Selection Crash Reduction State Reference Total Fatal/Injury Injury Fatal Louisiana Sun et al. 2019 29% - - 100% Maryland Inman and Haas 2012 28%–40% - - Minnesota Leuer and Fleming 2017 - - 50% Missouri Edara et al.
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Literature Review 33 and pedestrians at a superstreet recommended the use of a combination of a direct cross and midblock cross for bicyclists and a combination of a diagonal cross and midblock cross for pedestrians (Hummer et al.
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34 Alternative Intersection Design and Selection based on a literature review, practitioner survey and interviews, and review of project plans. The FHWA Alternative Intersection Guides (Hummer et al.
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