907.7 Highway Safety Manual - Revision history

Hoskir: updated

2023-09-19T17:01:04Z

updated

← Older revision		Revision as of 12:01, 19 September 2023
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	[[Category:907 Traffic Safety]]		[[Category:907 Traffic Safety\|907.07]]

Smithk at 13:31, 27 August 2019

2019-08-27T13:31:42Z

← Older revision		Revision as of 08:31, 27 August 2019
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	[[image:907.7 2014.jpg\|right\|200px]]		[[image:907.7 2014.jpg\|right\|200px]]
	AASHTO's [http://www.highwaysafetymanual.org/Pages/default.aspx Highway Safety Manual] (HSM) is a document used to quantify the safety impacts from decisions made in planning, design, operations and maintenance. The HSM can be used to:		AASHTO's [http://www.highwaysafetymanual.org/Pages/default.aspx ''Highway Safety Manual''] (HSM) is a document used to quantify the safety impacts from decisions made in planning, design, operations and maintenance. The HSM can be used to:

	:* Identify sites with the highest potential for severe or total crash reduction (network screening)		:* Identify sites with the highest potential for severe or total crash reduction (network screening)

Smithk: /* 907.7.1 What is the Highway Safety Manual? */

2019-08-27T13:29:14Z

907.7.1 What is the Highway Safety Manual?

← Older revision		Revision as of 08:29, 27 August 2019
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	===907.7.1 What is the ''Highway Safety Manual''?===		===907.7.1 What is the ''Highway Safety Manual''?===

	[[image:907.7 ~~2019~~.jpg\|right\|200px]]		[[image:907.7 2014.jpg\|right\|200px]]
	AASHTO's [http://www.highwaysafetymanual.org/Pages/default.aspx Highway Safety Manual] (HSM) is a document used to quantify the safety impacts from decisions made in planning, design, operations and maintenance. The HSM can be used to:		AASHTO's [http://www.highwaysafetymanual.org/Pages/default.aspx Highway Safety Manual] (HSM) is a document used to quantify the safety impacts from decisions made in planning, design, operations and maintenance. The HSM can be used to:

Smithk: /* 907.7.1 What is the Highway Safety Manual? */

2019-08-27T13:24:30Z

907.7.1 What is the Highway Safety Manual?

← Older revision		Revision as of 08:24, 27 August 2019
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	===907.7.1 What is the ''Highway Safety Manual''?===		===907.7.1 What is the ''Highway Safety Manual''?===

	[[image:907.7.jpg\|right\|200px]]		[[image:907.7 2019.jpg\|right\|200px]]
	AASHTO's [http://www.highwaysafetymanual.org/Pages/default.aspx Highway Safety Manual] (HSM) is a document used to quantify the safety impacts from decisions made in planning, design, operations and maintenance. The HSM can be used to:		AASHTO's [http://www.highwaysafetymanual.org/Pages/default.aspx Highway Safety Manual] (HSM) is a document used to quantify the safety impacts from decisions made in planning, design, operations and maintenance. The HSM can be used to:

Smithk: Updated FHWA website link

2019-08-27T13:18:29Z

Updated FHWA website link

← Older revision		Revision as of 08:18, 27 August 2019
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	HSM Online Resources		HSM Online Resources
	:* [http://www.highwaysafetymanual.org/Pages/Training.aspx AASHTO website]: Provides online training courses, recorded webinar trainings and much more. This is a very valuable resource for HSM methodologies.		:* [http://www.highwaysafetymanual.org/Pages/Training.aspx AASHTO website]: Provides online training courses, recorded webinar trainings and much more. This is a very valuable resource for HSM methodologies.
	:* [~~http~~://safety.fhwa.dot.gov/hsm/ FHWA website]: Provides additional training material. Very similar to AASHTO Website.		:* [https://safety.fhwa.dot.gov/rsdp/hsm.aspx FHWA website]: Provides additional training material. Very similar to AASHTO Website.
	:* [http://www.cmfclearinghouse.org/ CMF Clearinghouse]: Provides a database of Crash Modification Factors for Safety Strategies.		:* [http://www.cmfclearinghouse.org/ CMF Clearinghouse]: Provides a database of Crash Modification Factors for Safety Strategies.

Smithk: Updated HSM SharePoint site link

2019-08-27T13:14:05Z

Updated HSM SharePoint site link

← Older revision		Revision as of 08:14, 27 August 2019
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	'''Step 2:''' Download the appropriate spreadsheet based on the type selected in Step 1.		'''Step 2:''' Download the appropriate spreadsheet based on the type selected in Step 1.

	Go to [http://sp/sites/ts/safety/Shared%20Documents/~~Highway~~%~~20Safety~~%~~20Manual~~ the SharePoint HSM site] and download the appropriate spreadsheet. The rural two lane, rural multilane and urban/suburban arterial spreadsheets are found in the "Existing Chapters – Spreadsheets" folder while the interchange and freeway spreadsheet is found in the "Freeways and Interchanges" folder.		Go to [http://sp/sites/ts/safety/Shared%20Documents/Forms/AllItems.aspx?RootFolder=%2fsites%2fts%2fsafety%2fShared%20Documents%2fHighwaySafetyManual&FolderCTID=0x0120002670DCE398F95D44B01B4DA9B0A0AAE8&View=%7bCCE97DB0%2dE711%2d4B87%2dA5DC%2dAF66786C3A4F%7d the SharePoint HSM site] and download the appropriate spreadsheet. The rural two lane, rural multilane and urban/suburban arterial spreadsheets are found in the "Existing Chapters – Spreadsheets" folder while the interchange and freeway spreadsheet is found in the "Freeways and Interchanges" folder.

	'''Step 3:''' Split the study area into homogenous sections.		'''Step 3:''' Split the study area into homogenous sections.
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	Spreadsheets		Spreadsheets
	:* Freeways and Interchanges Safety Analysis Tool : Enhanced (iSATe). This automates HSM methodologies for freeway and interchange analysis. This spreadsheet may be found in the "Freeways and Interchanges" section of the [http://sp/sites/ts/safety/Shared%20Documents/~~Highway~~%~~20Safety~~%~~20Manual~~ HSM SharePoint site].		:* Freeways and Interchanges Safety Analysis Tool : Enhanced (iSATe). This automates HSM methodologies for freeway and interchange analysis. This spreadsheet may be found in the "Freeways and Interchanges" section of the [http://sp/sites/ts/safety/Shared%20Documents/Forms/AllItems.aspx?RootFolder=%2fsites%2fts%2fsafety%2fShared%20Documents%2fHighwaySafetyManual&FolderCTID=0x0120002670DCE398F95D44B01B4DA9B0A0AAE8&View=%7bCCE97DB0%2dE711%2d4B87%2dA5DC%2dAF66786C3A4F%7d HSM SharePoint site].
	:* Rural Two Lane, Rural Multi-Lane, Urban/Suburban Spreadsheets. There are multiple spreadsheets available which are each used for a specific type of roadway. These spreadsheets may be found in the "Existing Chapters – Spreadsheets" of the [http://sp/sites/ts/safety/Shared%20Documents/~~Highway~~%~~20Safety~~%~~20Manual~~ HSM SharePoint site].		:* Rural Two Lane, Rural Multi-Lane, Urban/Suburban Spreadsheets. There are multiple spreadsheets available which are each used for a specific type of roadway. These spreadsheets may be found in the "Existing Chapters – Spreadsheets" of the [http://sp/sites/ts/safety/Shared%20Documents/Forms/AllItems.aspx?RootFolder=%2fsites%2fts%2fsafety%2fShared%20Documents%2fHighwaySafetyManual&FolderCTID=0x0120002670DCE398F95D44B01B4DA9B0A0AAE8&View=%7bCCE97DB0%2dE711%2d4B87%2dA5DC%2dAF66786C3A4F%7d HSM SharePoint site].

	HSM Help Documents		HSM Help Documents
	:* ''HSM User Guide''. Developed by NCHRP 17-50, this document is great for an overview of HSM methodologies. This would be a great document to help an individual acclimate to HSM procedures. This document may be found on the [http://sp/sites/ts/safety/Shared%20Documents/~~Highway~~%~~20Safety~~%~~20Manual~~ HSM SharePoint site].		:* ''HSM User Guide''. Developed by NCHRP 17-50, this document is great for an overview of HSM methodologies. This would be a great document to help an individual acclimate to HSM procedures. This document may be found on the [http://sp/sites/ts/safety/Shared%20Documents/Forms/AllItems.aspx?RootFolder=%2fsites%2fts%2fsafety%2fShared%20Documents%2fHighwaySafetyManual&FolderCTID=0x0120002670DCE398F95D44B01B4DA9B0A0AAE8&View=%7bCCE97DB0%2dE711%2d4B87%2dA5DC%2dAF66786C3A4F%7d HSM SharePoint site].
	:* ''HSM Training Guide''. Developed by FHWA, this document goes into more depth than the User Guide and can be another resource to reference when performing an HSM analysis.		:* ''HSM Training Guide''. Developed by FHWA, this document goes into more depth than the User Guide and can be another resource to reference when performing an HSM analysis.

Smithk: Per TS, updated several HSM links

2019-07-26T12:49:20Z

Per TS, updated several HSM links

← Older revision		Revision as of 07:49, 26 July 2019
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	'''Step 2:''' Download the appropriate spreadsheet based on the type selected in Step 1.		'''Step 2:''' Download the appropriate spreadsheet based on the type selected in Step 1.

	Go to [http://~~sharepoint~~/~~systemdelivery~~/TR/safety/Shared%20Documents/~~Forms/AllItems.aspx?RootFolder=%2fsystemdelivery%2fTR%2fsafety%2fShared%20Documents%2fHighway~~%20Safety%20Manual&FolderCTID=0x0120002670DCE398F95D44B01B4DA9B0A0AAE8&View=%7bCCE97DB0%2dE711%2d4B87%2dA5DC%2dAF66786C3A4F%7d&InitialTabId=Ribbon%2EDocument&VisibilityContext=WSSTabPersistencehttp://sharepoint/systemdelivery/TR/safety/Shared%20Documents/Forms/AllItems.aspx?RootFolder=%2fsystemdelivery%2fTR%2fsafety%2fShared%20Documents%2fHighway%20Safety%20Manual&FolderCTID=0x0120002670DCE398F95D44B01B4DA9B0A0AAE8&View=%7bCCE97DB0%2dE711%2d4B87%2dA5DC%2dAF66786C3A4F%7d&InitialTabId=Ribbon%2EDocument&VisibilityContext=WSSTabPersistence the SharePoint HSM site] and download the appropriate spreadsheet. The rural two lane, rural multilane and urban/suburban arterial spreadsheets are found in the "Existing Chapters – Spreadsheets" folder while the interchange and freeway spreadsheet is found in the "Freeways and Interchanges" folder.		Go to [http://sp/sites/ts/safety/Shared%20Documents/Highway%20Safety%20Manual the SharePoint HSM site] and download the appropriate spreadsheet. The rural two lane, rural multilane and urban/suburban arterial spreadsheets are found in the "Existing Chapters – Spreadsheets" folder while the interchange and freeway spreadsheet is found in the "Freeways and Interchanges" folder.

	'''Step 3:''' Split the study area into homogenous sections.		'''Step 3:''' Split the study area into homogenous sections.
Line 201:		Line 201:

	Spreadsheets		Spreadsheets
	:* Freeways and Interchanges Safety Analysis Tool : Enhanced (iSATe). This automates HSM methodologies for freeway and interchange analysis. This spreadsheet may be found in the "Freeways and Interchanges" section of the [http://~~sharepoint~~/~~systemdelivery~~/TR/safety/Shared%20Documents/~~Forms/AllItems.aspx?RootFolder=%2Fsystemdelivery%2FTR%2Fsafety%2FShared%20Documents%2FHighway~~%20Safety%20Manual~~&View=%7bCCE97DB0%2dE711%2d4B87%2dA5DC%2dAF66786C3A4F%7d~~ HSM SharePoint site].		:* Freeways and Interchanges Safety Analysis Tool : Enhanced (iSATe). This automates HSM methodologies for freeway and interchange analysis. This spreadsheet may be found in the "Freeways and Interchanges" section of the [http://sp/sites/ts/safety/Shared%20Documents/Highway%20Safety%20Manual HSM SharePoint site].
	:* Rural Two Lane, Rural Multi-Lane, Urban/Suburban Spreadsheets. There are multiple spreadsheets available which are each used for a specific type of roadway. These spreadsheets may be found in the "Existing Chapters – Spreadsheets" of the [http://~~sharepoint~~/~~systemdelivery~~/TR/safety/Shared%20Documents/~~Forms/AllItems.aspx?RootFolder=%2Fsystemdelivery%2FTR%2Fsafety%2FShared%20Documents%2FHighway~~%20Safety%20Manual~~&View=%7bCCE97DB0%2dE711%2d4B87%2dA5DC%2dAF66786C3A4F%7d~~ HSM SharePoint site].		:* Rural Two Lane, Rural Multi-Lane, Urban/Suburban Spreadsheets. There are multiple spreadsheets available which are each used for a specific type of roadway. These spreadsheets may be found in the "Existing Chapters – Spreadsheets" of the [http://sp/sites/ts/safety/Shared%20Documents/Highway%20Safety%20Manual HSM SharePoint site].

	HSM Help Documents		HSM Help Documents
	:* ''HSM User Guide''. Developed by NCHRP 17-50, this document is great for an overview of HSM methodologies. This would be a great document to help an individual acclimate to HSM procedures. This document may be found on the [http://~~sharepoint~~/~~systemdelivery~~/TR/safety/Shared%20Documents/~~Forms/AllItems.aspx?RootFolder=%2Fsystemdelivery%2FTR%2Fsafety%2FShared%20Documents%2FHighway~~%20Safety%20Manual~~&View=%7bCCE97DB0%2dE711%2d4B87%2dA5DC%2dAF66786C3A4F%7d~~ HSM SharePoint site].		:* ''HSM User Guide''. Developed by NCHRP 17-50, this document is great for an overview of HSM methodologies. This would be a great document to help an individual acclimate to HSM procedures. This document may be found on the [http://sp/sites/ts/safety/Shared%20Documents/Highway%20Safety%20Manual HSM SharePoint site].
	:* ''HSM Training Guide''. Developed by FHWA, this document goes into more depth than the User Guide and can be another resource to reference when performing an HSM analysis.		:* ''HSM Training Guide''. Developed by FHWA, this document goes into more depth than the User Guide and can be another resource to reference when performing an HSM analysis.

EPGsysop: /* 907.7.5 What Additional Resources are Available to Aid in an HSM Analysis? */

2017-06-29T18:58:56Z

907.7.5 What Additional Resources are Available to Aid in an HSM Analysis?

← Older revision		Revision as of 13:58, 29 June 2017
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	''Highway Safety Manual''		''Highway Safety Manual''
	:* Each district has several copies of the ''Highway Safety Manual''. See Design Division and/or Traffic ~~and Safety~~ Division for a manual.		:* Each district has several copies of the ''Highway Safety Manual''. See Design Division and/or Highway Safety and Traffic Division for a manual.
	:* Additional copies may be purchased from the [https://bookstore.transportation.org/Home.aspx AASHTO Bookstore].		:* Additional copies may be purchased from the [https://bookstore.transportation.org/Home.aspx AASHTO Bookstore].

EPGsysop at 17:47, 29 June 2017

2017-06-29T17:47:16Z

← Older revision		Revision as of 12:47, 29 June 2017
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	:* [http://www.cmfclearinghouse.org/ CMF Clearinghouse]: Provides a database of Crash Modification Factors for Safety Strategies.		:* [http://www.cmfclearinghouse.org/ CMF Clearinghouse]: Provides a database of Crash Modification Factors for Safety Strategies.

	Central Office ~~Traffic and~~ Highway Safety		Central Office Highway Safety and Traffic
	:* Feel free to contact Central Office ~~Traffic and~~ Highway Safety for any questions or issues encountered during an HSM analysis.		:* Feel free to contact Central Office Highway Safety and Traffic for any questions or issues encountered during an HSM analysis.


	[[Category:907 Traffic Safety]]		[[Category:907 Traffic Safety]]

Smithk: /* 907.7.2 When is the Highway Safety Manual Used? */ Per TS, removed archaic link

2016-08-26T17:17:38Z

907.7.2 When is the Highway Safety Manual Used?: Per TS, removed archaic link

← Older revision		Revision as of 12:17, 26 August 2016
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	MoDOT requires an HSM analysis be completed for all applicable safety-related [[131.1 Design Exception Process\|Design Exceptions]]. Safety related changes could include, but are not limited to lane width, shoulder width, shoulder type, rumble strips, turn lanes, horizontal alignment, grade, median width, side slopes and lighting. An example of such a scenario could be if a contractor wants to use 4 ft. shoulders instead of the 6 ft. shoulders stated in the design. An HSM analysis would provide an expected crash frequency change due to this particular design exception and would aid the designer in evaluating such a request.		MoDOT requires an HSM analysis be completed for all applicable safety-related [[131.1 Design Exception Process\|Design Exceptions]]. Safety related changes could include, but are not limited to lane width, shoulder width, shoulder type, rumble strips, turn lanes, horizontal alignment, grade, median width, side slopes and lighting. An example of such a scenario could be if a contractor wants to use 4 ft. shoulders instead of the 6 ft. shoulders stated in the design. An HSM analysis would provide an expected crash frequency change due to this particular design exception and would aid the designer in evaluating such a request.

	An HSM analysis should be completed for any non-systemic safety project which utilizes Highway Safety Improvement Program (HSIP) funds. Systemic safety projects (e.g. rumbles, shoulders, striping, etc.) are not required to have an HSM analysis due to the nature of their implementation. A cost/benefit analysis will still need to be completed for all non-systemic projects using ~~[[907.1 Safety Program Guidelines#907.1.3.1 Safety Program Funding (Highway Safety Improvement Program (HSIP) and Open Container Transfer Funds)\|HSIP~~ funds]].		An HSM analysis should be completed for any non-systemic safety project which utilizes Highway Safety Improvement Program (HSIP) funds. Systemic safety projects (e.g. rumbles, shoulders, striping, etc.) are not required to have an HSM analysis due to the nature of their implementation. A cost/benefit analysis will still need to be completed for all non-systemic projects using safety funds.

	While a HSM analysis is only required for a design exception, it is a valuable tool which MoDOT makes available for assistance in planning, design, operations and maintenance. Some examples of when MoDOT staff might use the HSM are:		While a HSM analysis is only required for a design exception, it is a valuable tool which MoDOT makes available for assistance in planning, design, operations and maintenance. Some examples of when MoDOT staff might use the HSM are: