Traffic Capacity Level of Service: Adaptations and Usage (2025)

Chapter: Appendix D: State Guides and Reference Documents

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Suggested Citation: "Appendix D: State Guides and Reference Documents." National Academies of Sciences, Engineering, and Medicine. 2025. Traffic Capacity Level of Service: Adaptations and Usage. Washington, DC: The National Academies Press. doi: 10.17226/29143.
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APPENDIX D

State Guides and Reference Documents

Note that an electronic version of Appendix D is also available on the National Academies Press website (nap.nationalacademies.org) by searching for NCHRP Synthesis 652: Traffic Capacity Level of Service: Adaptations and Usage.

Page 88
Suggested Citation: "Appendix D: State Guides and Reference Documents." National Academies of Sciences, Engineering, and Medicine. 2025. Traffic Capacity Level of Service: Adaptations and Usage. Washington, DC: The National Academies Press. doi: 10.17226/29143.
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The column headers are as follows: State; Document title and link. Row 1, Alaska: Preconstruction Manual: https://dot.alaska.gov/stwddes/dcsprecon/assets/pdf/preconhwy/preconstruction_all.pdf. Row 2, Arizona: Traffic Guidelines and Processes:https://azdot.gov/sites/default/files/media/2021/08/TGP0240-2021-08.pdf. Row 3, Arkansas: Arkansas Long-Range Intermodal Transportation Plan: https://www.ardot.gov/wp-content/uploads/2021/02/1-12-137-Arkansas-Long-Range-Intermodal-Transportation-Plan-OCR.pdf. Row 4, California: Highway Design Manual – Chapter 100 Basic Design Policies: https://dot.ca.gov/-/media/dot-media/programs/design/documents/chp0100-dec-2020-changes-a11y.pdf. Chapter 500 Traffic Interchanges: https://dot.ca.gov/-/media/dot-media/programs/design/documents/chp0500-032020.pdf. Row 5, Colorado: Traffic Analysis and Forecasting Guidelines:https://www.codot.gov/safety/traffic-safety/assets/traffic_analysis_forecasting_guidelines/traffic_analysis_forecasting_guidelines. Row 6, Florida: Systems Management Documents: https://www.fdot.gov/planning/systems/systems-management/systems-management-documents. Row 7, Illinois: Bureau of Design and Environment Manual: https://public.powerdms.com/IDOT/documents/1881647 Row 8, Indiana: Intersection Traffic Analysis Procedures: https://www.in.gov/indot/traffic-engineering/corridor-development-office/intersection-traffic-analysis-procedures/. Row 9, Iowa: Guidelines for traffic impact analysis:https://iowadot.gov/systems_planning/pr_guide/Traffic/Traffic_Impact_Guidelines.pdf, Microsimulation Guidance: https://iowadot.gov/ijr/docs/MicrosimulationGuidance.pdf. Row 10, Kentucky: Microsimulation Guidelines: https://transportation.ky.gov/Planning/Documents/KYTC%20Microsimulation%20Guidelines.pdf. Row 11, Maryland: Guidelines for Traffic Impact Reports/Studies:https://www.roads.maryland.gov/ohd2/traffic%20impact%20study%20guidelines.pdf. Row 12, Minnesota: Manuals:https://www.dot.state.mn.us/manuals/. Row 13, Missouri: Engineering Policy Guide: https://epg.modot.org/index.php/Category:232_Facility_Selection,Transportation Impact Analysis: https://epg.modot.org/index.php/905.3_Transportation_Impact_Analysis#905.3.2.4_Analysis_Tool_Selection. Row 14, New Hampshire: Highway Design Manual: https://www.dot.nh.gov/doing-business-nhdot/engineers-consultants/highway-design-manual. Row 15, New Mexico: Design Manual:https://www.dot.nm.gov/infrastructure/engineering-publications/design-manual/. Row 16, New York: Highway Design Manual Chapter 5:https://www.dot.ny.gov/divisions/engineering/design/dqab/hdm/hdm-repository/chapt_05.pdf. Row 17, North Carolina: NCDOT Capacity Analysis Guidelines: https://connect.ncdot.gov/resources/safety/Congestion%20Mngmt%20and%20Signing/Standards%20-%20Capacity%20Analysis%20Guidelines.pdf. Row 18, North Dakota: Traffic Operations Manual: https://www.dot.nd.gov/sites/www/files/documents/construction-and-planning/Traffic-Operations-Manual.pdf. Row 19, Ohio: O D O T Analysis and Traffic Simulation Manual: https://www.transportation.ohio.gov/wps/wcm/connect/gov/4a5217b4-d590-41c0-923f-af08b93b26db/OATS+Manual+-+January+2024+-+opt+wApp.pdf?MOD=AJPERES&CONVERT_TO=url&CACHEID=ROOTWORKSPACE.Z18_79GCH8013HMOA06A2E16IV2082-4a5217b4-d590-41c0-923f-af08b93b26db-oSPvd2U. Row 20, Oregon: Analysis Procedures Manual: https://www.oregon.gov/odot/Planning/Pages/APM.aspx. Row 21, Pennsylvania: Traffic Engineering Manual Ch. 10 and 12: https://www.dot.state.pa.us/public/PubsForms/Publications/PUB%2046.pdf. Row 22, Texas: Traffic and Safety Analysis Procedures Manual: https://onlinemanuals.txdot.gov/TxDOTOnlineManuals/TxDOTManuals/rdw/rdw.pdf. Row 23, Utah: Traffic Analysis Guideline: https://www.udot.utah.gov/connect/docs/udot-traffic-analysis-guideline/. Row 24, Vermont: Traffic Impact Study Guidelines: https://vtrans.vermont.gov/sites/aot/files/planning/documents/trafficresearch/TIS%20Guidelines%20Revised%20April%202019%20CGC.pdf. Row 25, Virginia: Traffic Operations and Safety Analysis Manual:https://www.vdot.virginia.gov/media/vdotvirginiagov/doing-business/technical-guidance-and-support/technical-guidance-documents/traffic-operations/traffic-operations-and-safety-analysis-manual-tosam.pdf. Row 26, Washington: Traffic Operations and Safety Analysis Manual: https://wsdot.wa.gov/engineering-standards/design-topics/traffic-analysis. Traffic Manual: https://www.wsdot.wa.gov/publications/manuals/fulltext/M51-02/Traffic.pdf. Row 27, Wisconsin: Traffic Analysis & Modeling: https://wisconsindot.gov/Pages/doing-bus/local-gov/traffic-ops/manuals-and-standards/teops/ch16.aspx, Facilities Development Manual: https://wisconsindot.gov/rdwy/fdm/fd-11-05.pdf#fd11-5-3. Row 28, Wyoming: Design Manual: https://www.dot.state.wy.us/files/live/sites/wydot/files/shared/Project%20Development/Road%20Design%20Manual_1/3-01_2021_JAN.pdf.
Page 89
Suggested Citation: "Appendix D: State Guides and Reference Documents." National Academies of Sciences, Engineering, and Medicine. 2025. Traffic Capacity Level of Service: Adaptations and Usage. Washington, DC: The National Academies Press. doi: 10.17226/29143.
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The column headers are as follows: State; Document title and link. Row 1, Alaska: Preconstruction Manual: https://dot.alaska.gov/stwddes/dcsprecon/assets/pdf/preconhwy/preconstruction_all.pdf. Row 2, Arizona: Traffic Guidelines and Processes:https://azdot.gov/sites/default/files/media/2021/08/TGP0240-2021-08.pdf. Row 3, Arkansas: Arkansas Long-Range Intermodal Transportation Plan: https://www.ardot.gov/wp-content/uploads/2021/02/1-12-137-Arkansas-Long-Range-Intermodal-Transportation-Plan-OCR.pdf. Row 4, California: Highway Design Manual – Chapter 100 Basic Design Policies: https://dot.ca.gov/-/media/dot-media/programs/design/documents/chp0100-dec-2020-changes-a11y.pdf. Chapter 500 Traffic Interchanges: https://dot.ca.gov/-/media/dot-media/programs/design/documents/chp0500-032020.pdf. Row 5, Colorado: Traffic Analysis and Forecasting Guidelines:https://www.codot.gov/safety/traffic-safety/assets/traffic_analysis_forecasting_guidelines/traffic_analysis_forecasting_guidelines. Row 6, Florida: Systems Management Documents: https://www.fdot.gov/planning/systems/systems-management/systems-management-documents. Row 7, Illinois: Bureau of Design and Environment Manual: https://public.powerdms.com/IDOT/documents/1881647 Row 8, Indiana: Intersection Traffic Analysis Procedures: https://www.in.gov/indot/traffic-engineering/corridor-development-office/intersection-traffic-analysis-procedures/. Row 9, Iowa: Guidelines for traffic impact analysis:https://iowadot.gov/systems_planning/pr_guide/Traffic/Traffic_Impact_Guidelines.pdf, Microsimulation Guidance: https://iowadot.gov/ijr/docs/MicrosimulationGuidance.pdf. Row 10, Kentucky: Microsimulation Guidelines: https://transportation.ky.gov/Planning/Documents/KYTC%20Microsimulation%20Guidelines.pdf. Row 11, Maryland: Guidelines for Traffic Impact Reports/Studies:https://www.roads.maryland.gov/ohd2/traffic%20impact%20study%20guidelines.pdf. Row 12, Minnesota: Manuals:https://www.dot.state.mn.us/manuals/. Row 13, Missouri: Engineering Policy Guide: https://epg.modot.org/index.php/Category:232_Facility_Selection,Transportation Impact Analysis: https://epg.modot.org/index.php/905.3_Transportation_Impact_Analysis#905.3.2.4_Analysis_Tool_Selection. Row 14, New Hampshire: Highway Design Manual: https://www.dot.nh.gov/doing-business-nhdot/engineers-consultants/highway-design-manual. Row 15, New Mexico: Design Manual:https://www.dot.nm.gov/infrastructure/engineering-publications/design-manual/. Row 16, New York: Highway Design Manual Chapter 5:https://www.dot.ny.gov/divisions/engineering/design/dqab/hdm/hdm-repository/chapt_05.pdf. Row 17, North Carolina: NCDOT Capacity Analysis Guidelines: https://connect.ncdot.gov/resources/safety/Congestion%20Mngmt%20and%20Signing/Standards%20-%20Capacity%20Analysis%20Guidelines.pdf. Row 18, North Dakota: Traffic Operations Manual: https://www.dot.nd.gov/sites/www/files/documents/construction-and-planning/Traffic-Operations-Manual.pdf. Row 19, Ohio: O D O T Analysis and Traffic Simulation Manual: https://www.transportation.ohio.gov/wps/wcm/connect/gov/4a5217b4-d590-41c0-923f-af08b93b26db/OATS+Manual+-+January+2024+-+opt+wApp.pdf?MOD=AJPERES&CONVERT_TO=url&CACHEID=ROOTWORKSPACE.Z18_79GCH8013HMOA06A2E16IV2082-4a5217b4-d590-41c0-923f-af08b93b26db-oSPvd2U. Row 20, Oregon: Analysis Procedures Manual: https://www.oregon.gov/odot/Planning/Pages/APM.aspx. Row 21, Pennsylvania: Traffic Engineering Manual Ch. 10 and 12: https://www.dot.state.pa.us/public/PubsForms/Publications/PUB%2046.pdf. Row 22, Texas: Traffic and Safety Analysis Procedures Manual: https://onlinemanuals.txdot.gov/TxDOTOnlineManuals/TxDOTManuals/rdw/rdw.pdf. Row 23, Utah: Traffic Analysis Guideline: https://www.udot.utah.gov/connect/docs/udot-traffic-analysis-guideline/. Row 24, Vermont: Traffic Impact Study Guidelines: https://vtrans.vermont.gov/sites/aot/files/planning/documents/trafficresearch/TIS%20Guidelines%20Revised%20April%202019%20CGC.pdf. Row 25, Virginia: Traffic Operations and Safety Analysis Manual:https://www.vdot.virginia.gov/media/vdotvirginiagov/doing-business/technical-guidance-and-support/technical-guidance-documents/traffic-operations/traffic-operations-and-safety-analysis-manual-tosam.pdf. Row 26, Washington: Traffic Operations and Safety Analysis Manual: https://wsdot.wa.gov/engineering-standards/design-topics/traffic-analysis. Traffic Manual: https://www.wsdot.wa.gov/publications/manuals/fulltext/M51-02/Traffic.pdf. Row 27, Wisconsin: Traffic Analysis & Modeling: https://wisconsindot.gov/Pages/doing-bus/local-gov/traffic-ops/manuals-and-standards/teops/ch16.aspx, Facilities Development Manual: https://wisconsindot.gov/rdwy/fdm/fd-11-05.pdf#fd11-5-3. Row 28, Wyoming: Design Manual: https://www.dot.state.wy.us/files/live/sites/wydot/files/shared/Project%20Development/Road%20Design%20Manual_1/3-01_2021_JAN.pdf.
Page 90
Suggested Citation: "Appendix D: State Guides and Reference Documents." National Academies of Sciences, Engineering, and Medicine. 2025. Traffic Capacity Level of Service: Adaptations and Usage. Washington, DC: The National Academies Press. doi: 10.17226/29143.
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Page 87
Suggested Citation: "Appendix D: State Guides and Reference Documents." National Academies of Sciences, Engineering, and Medicine. 2025. Traffic Capacity Level of Service: Adaptations and Usage. Washington, DC: The National Academies Press. doi: 10.17226/29143.
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Page 88
Suggested Citation: "Appendix D: State Guides and Reference Documents." National Academies of Sciences, Engineering, and Medicine. 2025. Traffic Capacity Level of Service: Adaptations and Usage. Washington, DC: The National Academies Press. doi: 10.17226/29143.
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Page 89
Suggested Citation: "Appendix D: State Guides and Reference Documents." National Academies of Sciences, Engineering, and Medicine. 2025. Traffic Capacity Level of Service: Adaptations and Usage. Washington, DC: The National Academies Press. doi: 10.17226/29143.
Save
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Page 89
Page 90
Suggested Citation: "Appendix D: State Guides and Reference Documents." National Academies of Sciences, Engineering, and Medicine. 2025. Traffic Capacity Level of Service: Adaptations and Usage. Washington, DC: The National Academies Press. doi: 10.17226/29143.
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