National Academies Press: OpenBook

Alternative Intersection Design and Selection (2020)

Chapter: Appendix F - Screening and Analysis Tools for Alternative Intersections

« Previous: Appendix E - Example Flowcharts and Tables from Intersection ontrol Evaluation (ICE) Policies
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Suggested Citation:"Appendix F - Screening and Analysis Tools for Alternative Intersections." National Academies of Sciences, Engineering, and Medicine. 2020. Alternative Intersection Design and Selection. Washington, DC: The National Academies Press. doi: 10.17226/25812.
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Page 197
Page 198
Suggested Citation:"Appendix F - Screening and Analysis Tools for Alternative Intersections." National Academies of Sciences, Engineering, and Medicine. 2020. Alternative Intersection Design and Selection. Washington, DC: The National Academies Press. doi: 10.17226/25812.
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Page 198

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197 Screening and Analysis Tools for Alternative Intersections A P P E N D I X F Table F-1. Screening and analysis tools for alternative intersections Intersection Type Tool Description Reference CFI DDI MUT RAB SS Other AASHTO Green Book AASHTO 2018 X X X X X X Alternative Intersections Selection Tool (AIST) Asokan et al. 2010 X X X X X Capacity Analysis for Planning of Junctions (CAP-X) Jenior, Haas, Butsick, and Ray 2018b X X X X X X Decision assistance curves Gyawali 2014 X X X Decision trees for Intersection Control Evaluation (ICE) Bowen et al. 2014 X X X X X X Evaluation matrix for design criteria of alternative intersection designs Abou-Senna et al. 2015 X X X X X X Georgia Department of Transportation (DOT) ICE Tool v2 Georgia DOT 2018b X X X X X X Georgia DOT Roundabout Analysis Tool v4 Georgia DOT 2019 X Guidelines for selection of alternative diamond interchanges Tarko et al. 2017a, Tarko et al. 2017b X X X Guidelines for using alternative intersections Tarko et al. 2008 X X X X Highway Capacity Manual (HCM) TRB 2016 X X X X X X Innovative intersection and interchanges performance modules Zlatovic 2015 X X X Intersection Design Alternative Tool Stamatiadis et al. 2011 X X X X X X

198 Alternative Intersection Design and Selection Intersection Type Tool Description Reference CFI DDI MUT RAB SS Other Life cycle impact evaluation tool Cunningham, Findley, Davis, Aghdashi, Kim, and Small 2016c X Life-Cycle Cost Estimating Tool Rodegerdts et al. 2016 X X X X X X Look-up tables for double roundabout interchange versus signalized interchange Li et al. 2017 X Maryland Intersection and Interchange Design and Capacity Analysis Program Maryland DOT State Highway Administration 2017 X X X Maryland Unconventional Intersection/Interchange Design Analysis Tool Applied Technology and Traffic Analysis Program 2019 X X X Methodology for alternative intersection assessment Hughes et al. 2010 X X X X X X NCLOS Tool Hummer et al. 2010 X Offset Length Tool Xu et al. 2017 X Pennsylvania DOT ICE Tool Pennsylvania DOT n.d. X X X X X X Roundabout Feasibility Initial Screening Tool Iowa DOT 2019 (Section 6A-3a) X Safety Performance for Intersection Control Evaluation (SPICE) Tool Jenior, Butsick, Haas, and Ray 2018a X X X X X X Spreadsheet based methodology for determining intersection configuration Maji et al. 2015 X X Spreadsheet tool for operations and Life Cycle Cost Analysis Gyawali et al. 2015 X X X VDOT Junction Screening Tool (VJuST) Virginia DOT 2018 X X X X X X Note: RAB = Roundabout, SS = Superstreet.

Next: Appendix G - Summary of Operational Studies for Alternative Intersections »
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State departments of transportation often encounter public resistance to alternative intersections, with 86% of respondents in a new survey of state DOTs agreeing or strongly agreeing that public resistance hinders their implementation. Public resistance can vary among projects based on intersection type and whether the project was initiated at the local or state level.

The TRB National Cooperative Highway Research Program's NCHRP Synthesis 550: Alternative Intersection Design and Selection documents the evaluation and selection processes within state departments of transportation (DOTs) for intersection projects.

Roundabouts are the most widely implemented type of alternative intersection. Ninety percent of state DOTs that responded to the synthesis survey reported having at least one roundabout in their jurisdiction open and operational. Roundabouts also had the highest reported number of facilities in project development as 88% of respondents indicated there was at least one roundabout under development at their DOT.

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