Category:128 Conceptual Studies - Revision history

Hoskir at 18:35, 12 December 2024

2024-12-12T18:35:55Z

← Older revision		Revision as of 13:35, 12 December 2024
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	The project manager completes the draft project scoping documentation following approval of the conceptual plan for Major Projects. The details of the documentation are found in [[:Category:104 Scope\|EPG 104 Scope]].		The project manager completes the draft project scoping documentation following approval of the conceptual plan for Major Projects. The details of the documentation are found in [[:Category:104 Scope\|EPG 104 Scope]].

	[[Category:~~100 General~~]]		[[Category:100_GENERAL]]

Hoskir at 20:40, 26 November 2024

2024-11-26T20:40:09Z

← Older revision		Revision as of 15:40, 26 November 2024
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	The project manager completes the draft project scoping documentation following approval of the conceptual plan for Major Projects. The details of the documentation are found in [[:Category:104 Scope\|EPG 104 Scope]].		The project manager completes the draft project scoping documentation following approval of the conceptual plan for Major Projects. The details of the documentation are found in [[:Category:104 Scope\|EPG 104 Scope]].

			[[Category:100 General]]

Hoskir: /* 128.11 Airports */ this information was out of date, but was the same as 235.8. Instead of having the same info in 2 places we just forwarded it to 235.8.

2024-08-02T15:30:11Z

128.11 Airports: this information was out of date, but was the same as 235.8. Instead of having the same info in 2 places we just forwarded it to 235.8.

← Older revision		Revision as of 10:30, 2 August 2024
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	==128.11 [[:Category:122 Aviation\|Airports]]==		==128.11 [[:Category:122 Aviation\|Airports]]==

	~~If a highway improvement is located within 2 miles (3 km) of an existing [[:Category:122 Aviation\|airport]], a letter is submitted to the Design Division as directed in~~ [[:Category:~~235 Preliminary Plans~~#235.~~8 Airports~~\|EPG 235.8 ~~Preliminary Plans~~]].		See [[:Category:235_Preliminary_Plans#235.8_Airports\| EPG 235.8 Airports]] for determining whether an improvement must be filed with the FAA.

	~~The notice and submittal requirements of Federal Aviation Regulation Part 77 shall be followed if any highway~~ improvement is located near an airport. Notice criteria can be found online at [http://www.faa.gov/airports_airtraffic/airports/regional_guidance/central/construction/part77/#who http://www.faa.gov/airports_airtraffic/airports/regional_guidance/central/construction/part77/#who]. Highway improvements located near airports shall also be ~~coordinated~~ with the ~~Aviation Section in Multimodal Operations. The airspace filings can be submitted electronically through FAA’s website at https://oeaaa.faa.gov/oeaaaEXT/portal.jsp.~~

	Particular attention is given to all types of signs, light poles, cranes, and large equipment that may require notice as outlined in F.A.R. Part 77. The names and locations of civil and private airports in Missouri can be obtained from the "Missouri Aeronautical Chart" available from the Aviation Section in Multimodal Operations.

	==128.12 SEMA Flood Buyout Program==		==128.12 SEMA Flood Buyout Program==

Hoskir: /* 128.2 Preventive Maintenance Projects (1R and 2R) */ updated per RR3896

2024-07-02T19:52:48Z

128.2 Preventive Maintenance Projects (1R and 2R): updated per RR3896

← Older revision		Revision as of 14:52, 2 July 2024
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	*Resurfacing and restoration (2R): Thin Hot Mix Asphalt Overlay. The highest type alternative available in the pavement preventive maintenance program for flexible pavements. Thin overlays protect the pavement structure, reduce the rate of pavement deterioration, correct surface discontinuities, reduce permeability and improve the ride quality of the pavement. A minor amount of structural enhancement can also be provided with this treatment.		*Resurfacing and restoration (2R): Thin Hot Mix Asphalt Overlay. The highest type alternative available in the pavement preventive maintenance program for flexible pavements. Thin overlays protect the pavement structure, reduce the rate of pavement deterioration, correct surface discontinuities, reduce permeability and improve the ride quality of the pavement. A minor amount of structural enhancement can also be provided with this treatment.

	Although 1R and 2R projects are eligible for federal funding, no conceptual study report is required. However, since there may be no additional activity in the project area for a number of years, the preventive maintenance project core team should audit the corridor to identify any safety concerns involving alignment, intersection sight distance ~~and~~ roadside obstacles. The findings of the project core team should be documented but need not be in a formal report.		Although 1R and 2R projects are eligible for federal funding, no conceptual study report is required. However, since there may be no additional activity in the project area for a number of years, the preventive maintenance project core team should audit the corridor to identify any safety concerns involving alignment, intersection sight distance, roadside obstacles, and other concerns outlined in SAFER. The findings of the project core team should be documented but need not be in a formal report.

	If a safety concern is identified during the corridor audit, then the safety concern should be addressed if the project budget and scope can reasonably accommodate it. During the scoping of 1R and 2R projects, in evaluating whether a physical condition constitutes a safety concern, the designer should consider guidance provided in the ''Roadside Design Guide'' (RDG), if any, and the site specific characteristics of the roadway at issue, including the location of the object or area in relation to the roadway, traffic volume, traffic speed, geometry, and the crash history (including severity) involving the roadside object or area.		If a safety concern is identified during the corridor audit, then the safety concern should be addressed if the project budget and scope can reasonably accommodate it. During the scoping of 1R and 2R projects, in evaluating whether a physical condition constitutes a safety concern, the designer should consider guidance provided in the ''Roadside Design Guide'' (RDG), if any, and the site specific characteristics of the roadway at issue, including the location of the object or area in relation to the roadway, traffic volume, traffic speed, geometry, and the crash history (including severity) involving the roadside object or area.

	Similarly, if a safety enhancement opportunity is identified, then it may also be considered by the core team when scoping a 1R and 2R project; however, safety ~~enhancements should~~ be deferred and completed with department resources or included in a programmed future project.		Similarly, if a safety enhancement opportunity is identified, then it may also be considered by the core team when scoping a 1R and 2R project. If the enhancement, as stated before, can be reasonably accommodated in the project then it should be done; however, if the safety enhancement cannot reasonably be accommodated in the scope of the project then it can be deferred and completed with other department resources or included in a programmed future project.

	While it is not necessary to provide design exceptions for non-standard items throughout the scoping process, each safety concern should be documented.		While it is not necessary to provide design exceptions for non-standard items throughout the scoping process, each safety concern should be documented.

Hoskir: updated link to RES instructions

2024-02-02T14:36:03Z

updated link to RES instructions

← Older revision		Revision as of 09:36, 2 February 2024
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	\|[https://www6.modot.mo.gov/EnvironmentalRequest/Pages/Login.aspx RES Form]		\|[https://www6.modot.mo.gov/EnvironmentalRequest/Pages/Login.aspx RES Form]
	\|-		\|-
	\|[~~[media~~:~~2023-03-6_RES_Instruction_Manual~~.docx\|Instructions for RES Form]]		\|[https://epg.modot.org/forms/general_files/DE/ENV/RES_Instruction_Manual.docx Instructions for RES Form]
	\|-		\|-
	\|[http://epg.modot.org/forms/DE%202017%20Forms/Environmental/Categorial%20Exclusion%20Form.dot CE2 Form]		\|[http://epg.modot.org/forms/DE%202017%20Forms/Environmental/Categorial%20Exclusion%20Form.dot CE2 Form]

Legged1: /* 128.4.2 Traffic Data */ update link

2023-10-31T20:44:08Z

128.4.2 Traffic Data: update link

← Older revision		Revision as of 15:44, 31 October 2023
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	===128.4.2 Traffic Data===		===128.4.2 Traffic Data===

	The designer ~~requests~~ [https://~~epg~~.~~modot~~.~~org~~/~~forms~~/CM/~~4R_CONCEPTUAL_STUDY_REPORT~~.~~docx~~ traffic data] from Transportation Planning or the TMS database		The designer [https://modotgov.sharepoint.com/:b:/r/sites/tp/Shared%20Documents/Traffic%20Collection/Request%20Forms%20-%20Traffic%20Forecast%20-%20Road%20User%20Costs/Traffic%20Forecast%20Request%20Form.pdf?csf=1&web=1&e=G0Npik requests traffic data] from Transportation Planning or the TMS database.

	===128.4.3 Existing Pavement Data===		===128.4.3 Existing Pavement Data===

Legged1: /* 128.3.2 Traffic Data */ update link

2023-10-31T20:43:11Z

128.3.2 Traffic Data: update link

← Older revision		Revision as of 15:43, 31 October 2023
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	===128.3.2 Traffic Data===		===128.3.2 Traffic Data===

	The designer ~~requests~~ [~~[media~~:~~Conceptual Study Report~~.~~dotx\|~~traffic data]] from Transportation Planning or the [http://tmshome/TMS/TMS.html TMS] database.		The designer [https://modotgov.sharepoint.com/:b:/r/sites/tp/Shared%20Documents/Traffic%20Collection/Request%20Forms%20-%20Traffic%20Forecast%20-%20Road%20User%20Costs/Traffic%20Forecast%20Request%20Form.pdf?csf=1&web=1&e=G0Npik requests traffic data] from Transportation Planning or the [http://tmshome/TMS/TMS.html TMS] database.

	===128.3.3 Pavement Data===		===128.3.3 Pavement Data===

Hoskir: fixed link

2023-09-21T21:38:37Z

fixed link

← Older revision		Revision as of 16:38, 21 September 2023
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	A conceptual study consists of a written report that is presented in one of three formats. The [[media:Conceptual Study Report.dotx\|basic format]] is used for projects containing geometric improvements. There are also two specialized report formats for projects that primarily consist of improvements to the driving surface and shoulders, with limited geometric improvements. These reports are the [https://epg.modot.org/forms/CM/3R_CONCEPTUAL_STUDY_REPORT.docx 3R conceptual study report] (for resurfacing, restoration or rehabilitation of non-freeway roadways) and the [https://epg.modot.org/forms/CM/4R_CONCEPTUAL_STUDY_REPORT.docx 4R conceptual study report] (for resurfacing, restoration, rehabilitation or reconstruction of interstate or freeway roadways).		A conceptual study consists of a written report that is presented in one of three formats. The [[media:Conceptual Study Report.dotx\|basic format]] is used for projects containing geometric improvements. There are also two specialized report formats for projects that primarily consist of improvements to the driving surface and shoulders, with limited geometric improvements. These reports are the [https://epg.modot.org/forms/CM/3R_CONCEPTUAL_STUDY_REPORT.docx 3R conceptual study report] (for resurfacing, restoration or rehabilitation of non-freeway roadways) and the [https://epg.modot.org/forms/CM/4R_CONCEPTUAL_STUDY_REPORT.docx 4R conceptual study report] (for resurfacing, restoration, rehabilitation or reconstruction of interstate or freeway roadways).

	As each project is developed, a conceptual study or a location/environmental study is required to document the direction that the core team is taking to address the identified transportation need. A conceptual study will provide sufficient documentation for the types of projects described below. However, more complex projects or those with a potential for greater environmental impacts will require the preparation of a location/environmental study. All projects are required to have a [[907.9_Safety_Assessment_For_Every_Roadway_(SAFER)\|safety assessment review]] through all phases of the project development process. The SAFER tool was developed to facilitate these discussions within the project development teams. ~~(link to https://epg.modot.org/index.php/907.9_Safety_Assessment_For_Every_Roadway_(SAFER)~~ The details for preparing a [[:Category:126 Location Study and Alternatives Analysis\|Location Study and Alternative Analysis]] are available. In any case, each project that is developed requires the preparation of one of these types of report.		As each project is developed, a conceptual study or a location/environmental study is required to document the direction that the core team is taking to address the identified transportation need. A conceptual study will provide sufficient documentation for the types of projects described below. However, more complex projects or those with a potential for greater environmental impacts will require the preparation of a location/environmental study. All projects are required to have a [[907.9_Safety_Assessment_For_Every_Roadway_(SAFER)\|safety assessment review]] through all phases of the project development process. The SAFER tool was developed to facilitate these discussions within the project development teams. The details for preparing a [[:Category:126 Location Study and Alternatives Analysis\|Location Study and Alternative Analysis]] are available. In any case, each project that is developed requires the preparation of one of these types of report.

Hoskir: updated per RR3774

2023-09-21T21:36:39Z

updated per RR3774

← Older revision		Revision as of 16:36, 21 September 2023
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	A conceptual study consists of a written report that is presented in one of three formats. The [[media:Conceptual Study Report.dotx\|basic format]] is used for projects containing geometric improvements. There are also two specialized report formats for projects that primarily consist of improvements to the driving surface and shoulders, with limited geometric improvements. These reports are the [https://epg.modot.org/forms/CM/3R_CONCEPTUAL_STUDY_REPORT.docx 3R conceptual study report] (for resurfacing, restoration or rehabilitation of non-freeway roadways) and the [https://epg.modot.org/forms/CM/4R_CONCEPTUAL_STUDY_REPORT.docx 4R conceptual study report] (for resurfacing, restoration, rehabilitation or reconstruction of interstate or freeway roadways).		A conceptual study consists of a written report that is presented in one of three formats. The [[media:Conceptual Study Report.dotx\|basic format]] is used for projects containing geometric improvements. There are also two specialized report formats for projects that primarily consist of improvements to the driving surface and shoulders, with limited geometric improvements. These reports are the [https://epg.modot.org/forms/CM/3R_CONCEPTUAL_STUDY_REPORT.docx 3R conceptual study report] (for resurfacing, restoration or rehabilitation of non-freeway roadways) and the [https://epg.modot.org/forms/CM/4R_CONCEPTUAL_STUDY_REPORT.docx 4R conceptual study report] (for resurfacing, restoration, rehabilitation or reconstruction of interstate or freeway roadways).

	As each project is developed, a conceptual study or a location/environmental study is required to document the direction that the core team is taking to address the identified transportation need. A conceptual study will provide sufficient documentation for the types of projects described below. However, more complex projects or those with a potential for greater environmental impacts will require the preparation of a location/environmental study. The details for preparing a [[:Category:126 Location Study and Alternatives Analysis\|Location Study and Alternative Analysis]] are available. In any case, each project that is developed requires the preparation of one of these types of report.		As each project is developed, a conceptual study or a location/environmental study is required to document the direction that the core team is taking to address the identified transportation need. A conceptual study will provide sufficient documentation for the types of projects described below. However, more complex projects or those with a potential for greater environmental impacts will require the preparation of a location/environmental study. All projects are required to have a [[907.9_Safety_Assessment_For_Every_Roadway_(SAFER)\|safety assessment review]] through all phases of the project development process. The SAFER tool was developed to facilitate these discussions within the project development teams. (link to https://epg.modot.org/index.php/907.9_Safety_Assessment_For_Every_Roadway_(SAFER) The details for preparing a [[:Category:126 Location Study and Alternatives Analysis\|Location Study and Alternative Analysis]] are available. In any case, each project that is developed requires the preparation of one of these types of report.

Hoskir: updated links to 3r and 4r reports

2023-06-21T18:10:52Z

updated links to 3r and 4r reports

← Older revision		Revision as of 13:10, 21 June 2023
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	\|[[media:Conceptual Study Report.dotx\|Conceptual Study Report Format]]		\|[[media:Conceptual Study Report.dotx\|Conceptual Study Report Format]]
	\|-		\|-
	\|[~~[media~~:~~3R_Conceptual_Study_Report~~.~~dotx\|~~3R Report]]		\|[https://epg.modot.org/forms/CM/3R_CONCEPTUAL_STUDY_REPORT.docx 3R Report]
	\|-		\|-
	\|[[media:128 3R Design Standards (Rural) 2013.docx\|3R - Rural Design Criteria]]		\|[[media:128 3R Design Standards (Rural) 2013.docx\|3R - Rural Design Criteria]]
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	\|[[media:128 3R Design Criteria (Urban) Mar 10.doc\|3R - Urban Design Criteria]]		\|[[media:128 3R Design Criteria (Urban) Mar 10.doc\|3R - Urban Design Criteria]]
	\|-		\|-
	\|[~~[media~~:~~4R_Conceptual_Study_Report~~.~~dotx\|~~4R Report]]		\|[https://epg.modot.org/forms/CM/4R_CONCEPTUAL_STUDY_REPORT.docx 4R Report]
	\|-		\|-
	\|[https://www6.modot.mo.gov/EnvironmentalRequest/Pages/Login.aspx RES Form]		\|[https://www6.modot.mo.gov/EnvironmentalRequest/Pages/Login.aspx RES Form]
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	A conceptual study is used to coordinate MoDOT thinking on the improvements to be included in a project and to obtain approval of them as required. A conceptual study report is prepared for relatively small projects that provide specific improvements. The approved study is then used as the basis for further design. The format of the study is dependent on the proposed improvements.		A conceptual study is used to coordinate MoDOT thinking on the improvements to be included in a project and to obtain approval of them as required. A conceptual study report is prepared for relatively small projects that provide specific improvements. The approved study is then used as the basis for further design. The format of the study is dependent on the proposed improvements.

	A conceptual study consists of a written report that is presented in one of three formats. The [[media:Conceptual Study Report.dotx\|basic format]] is used for projects containing geometric improvements. There are also two specialized report formats for projects that primarily consist of improvements to the driving surface and shoulders, with limited geometric improvements. These reports are the [~~[media~~:~~3R_Conceptual_Study_Report~~.~~dotx\|~~3R conceptual study report]] (for resurfacing, restoration or rehabilitation of non-freeway roadways) and the [~~[media~~:~~4R_Conceptual_Study_Report~~.~~dotx\|~~4R conceptual study report]] (for resurfacing, restoration, rehabilitation or reconstruction of interstate or freeway roadways).		A conceptual study consists of a written report that is presented in one of three formats. The [[media:Conceptual Study Report.dotx\|basic format]] is used for projects containing geometric improvements. There are also two specialized report formats for projects that primarily consist of improvements to the driving surface and shoulders, with limited geometric improvements. These reports are the [https://epg.modot.org/forms/CM/3R_CONCEPTUAL_STUDY_REPORT.docx 3R conceptual study report] (for resurfacing, restoration or rehabilitation of non-freeway roadways) and the [https://epg.modot.org/forms/CM/4R_CONCEPTUAL_STUDY_REPORT.docx 4R conceptual study report] (for resurfacing, restoration, rehabilitation or reconstruction of interstate or freeway roadways).

	As each project is developed, a conceptual study or a location/environmental study is required to document the direction that the core team is taking to address the identified transportation need. A conceptual study will provide sufficient documentation for the types of projects described below. However, more complex projects or those with a potential for greater environmental impacts will require the preparation of a location/environmental study. The details for preparing a [[:Category:126 Location Study and Alternatives Analysis\|Location Study and Alternative Analysis]] are available. In any case, each project that is developed requires the preparation of one of these types of report.		As each project is developed, a conceptual study or a location/environmental study is required to document the direction that the core team is taking to address the identified transportation need. A conceptual study will provide sufficient documentation for the types of projects described below. However, more complex projects or those with a potential for greater environmental impacts will require the preparation of a location/environmental study. The details for preparing a [[:Category:126 Location Study and Alternatives Analysis\|Location Study and Alternative Analysis]] are available. In any case, each project that is developed requires the preparation of one of these types of report.
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	\|}		\|}

	The district prepares a [~~[media~~:~~3R_Conceptual_Study_Report~~.~~dotx\|~~3R Conceptual Study Report]] for all Resurfacing, Restoration and Rehabilitation (3R) projects on non-freeway roadways. All 3R projects are designed to certain [[media:128 3R Design Standards (Rural) 2013.docx\|design criteria for rural]] and [[media:128 3R Design Criteria (Urban) Mar 10.doc\|urban]] highways. These design criteria are '''only''' to be used for 3R projects. The values for urban highways apply to any portion of a 3R project located within the limits of a city or town. Justification for varying from these criteria must be submitted as a [[131.1 Design Exception Process\|Design Exception]].		The district prepares a [https://epg.modot.org/forms/CM/3R_CONCEPTUAL_STUDY_REPORT.docx 3R Conceptual Study Report] for all Resurfacing, Restoration and Rehabilitation (3R) projects on non-freeway roadways. All 3R projects are designed to certain [[media:128 3R Design Standards (Rural) 2013.docx\|design criteria for rural]] and [[media:128 3R Design Criteria (Urban) Mar 10.doc\|urban]] highways. These design criteria are '''only''' to be used for 3R projects. The values for urban highways apply to any portion of a 3R project located within the limits of a city or town. Justification for varying from these criteria must be submitted as a [[131.1 Design Exception Process\|Design Exception]].

	Approval and submittal of the 3R conceptual study report are detailed in [[:Category:128 Conceptual Studies#128.10 Conceptual Study Report Approval and Submittal\|EPG 128.10]].		Approval and submittal of the 3R conceptual study report are detailed in [[:Category:128 Conceptual Studies#128.10 Conceptual Study Report Approval and Submittal\|EPG 128.10]].
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	===128.3.3 Pavement Data===		===128.3.3 Pavement Data===

	Part I of the [~~[media~~:~~3R_Conceptual_Study_Report~~.~~dotx\|~~3R Conceptual Study Report]] shall be submitted to Construction and Materials at an appropriate time that will allow 4 to 6 weeks for a pavement evaluation to be completed and the appropriate pavement solution(s) returned to the district. The Contruction and Materials pavement section will provide the district with practical rehabilition option(s) or the district may recommend a rehabilition option and submit it to the Construction and Materials Division pavement section for approval.		Part I of the [https://epg.modot.org/forms/CM/3R_CONCEPTUAL_STUDY_REPORT.docx 3R Conceptual Study Report] shall be submitted to Construction and Materials at an appropriate time that will allow 4 to 6 weeks for a pavement evaluation to be completed and the appropriate pavement solution(s) returned to the district. The Contruction and Materials pavement section will provide the district with practical rehabilition option(s) or the district may recommend a rehabilition option and submit it to the Construction and Materials Division pavement section for approval.

	If the district elects to recommend a rehabilition option to Constrution and Materials pavement section for approval, then the Strategic Highway Research Program manual (publication FHWA-RD-03-031) titled "Distress Identifications Manual for the Long-Term Pavement Performance Project" is used to describe the pavement distress. The pavement distress type and severity is documented. Any drainage issues are also documented. The amount of [[:Category:613 Pavement Repair\|pavement repair]] is also estimated and included in the submittal.		If the district elects to recommend a rehabilition option to Constrution and Materials pavement section for approval, then the Strategic Highway Research Program manual (publication FHWA-RD-03-031) titled "Distress Identifications Manual for the Long-Term Pavement Performance Project" is used to describe the pavement distress. The pavement distress type and severity is documented. Any drainage issues are also documented. The amount of [[:Category:613 Pavement Repair\|pavement repair]] is also estimated and included in the submittal.

	If the distresses are such that the district is considering reconstruction for a given project, then Part I of the [~~[media~~:~~4R_Conceptual_Study_Report~~.~~dotx\|~~4R Conceptual Study Report]] is also submitted to the Constructiion and Materials Division. However, a straight-line profile of the existing pavement for each direction of roadway is not required. The designer should allow 4 to 6 weeks for the evaluation to be completed and recommendations to be returned to the district.		If the distresses are such that the district is considering reconstruction for a given project, then Part I of the [https://epg.modot.org/forms/CM/4R_CONCEPTUAL_STUDY_REPORT.docx 4R Conceptual Study Report] is also submitted to the Constructiion and Materials Division. However, a straight-line profile of the existing pavement for each direction of roadway is not required. The designer should allow 4 to 6 weeks for the evaluation to be completed and recommendations to be returned to the district.

	The requirements of project scoping [[:Category:104 Scope\|(EPG 104 Scope)]] cause identification of needs and the development of solutions to occur early in the project development process. Because of the time delay between scoping a project and actual construction, significant changes to pavement condition including accelerated pavement deterioration may occur which can make the original scoped pavement rehabilition strategy inappropriate.		The requirements of project scoping [[:Category:104 Scope\|(EPG 104 Scope)]] cause identification of needs and the development of solutions to occur early in the project development process. Because of the time delay between scoping a project and actual construction, significant changes to pavement condition including accelerated pavement deterioration may occur which can make the original scoped pavement rehabilition strategy inappropriate.
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	\|'''See also:''' [https://www.modot.org/research-publications Research Publications]		\|'''See also:''' [https://www.modot.org/research-publications Research Publications]
	\|}		\|}
	The district prepares a [~~[media~~:~~4R_Conceptual_Study_Report~~.~~dotx\|~~4R Conceptual Study Report]] for all resurfacing, restoration, rehabilitation and reconstruction (4R) projects on interstates and freeways. Part I of the 4R Report is also needed for a pavement design thickness determination for any major route in which full depth reconstruction is being consdiered. Part I of the form is completed and submitted to the Construction and Materials Division, with a copy to the Design Division, in order to initiate the pavement rehabilitation analysis or pavement thickness dtermination.		The district prepares a [https://epg.modot.org/forms/CM/4R_CONCEPTUAL_STUDY_REPORT.docx 4R Conceptual Study Report] for all resurfacing, restoration, rehabilitation and reconstruction (4R) projects on interstates and freeways. Part I of the 4R Report is also needed for a pavement design thickness determination for any major route in which full depth reconstruction is being consdiered. Part I of the form is completed and submitted to the Construction and Materials Division, with a copy to the Design Division, in order to initiate the pavement rehabilitation analysis or pavement thickness dtermination.

	Construction and Materials will issue a Pavement Type Selection (PTS) letter to the district and provide a copy to Design. Upon receipt of the PTS letter, the district will complete Part II of the form. The district will prepare an estimate of the paving and non-paving costs for each alternate provided in the PTS letter. The completed 4R report (Parts I and II) is submitted to the Design Division, with a copy to the Construction and Materials Division.		Construction and Materials will issue a Pavement Type Selection (PTS) letter to the district and provide a copy to Design. Upon receipt of the PTS letter, the district will complete Part II of the form. The district will prepare an estimate of the paving and non-paving costs for each alternate provided in the PTS letter. The completed 4R report (Parts I and II) is submitted to the Design Division, with a copy to the Construction and Materials Division.
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	===128.4.2 Traffic Data===		===128.4.2 Traffic Data===

	The designer requests [~~[media~~:~~4R_Conceptual_Study_Report~~.~~dotx\|~~traffic data]] from Transportation Planning or the TMS database		The designer requests [https://epg.modot.org/forms/CM/4R_CONCEPTUAL_STUDY_REPORT.docx traffic data] from Transportation Planning or the TMS database

	===128.4.3 Existing Pavement Data===		===128.4.3 Existing Pavement Data===
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	All [[:Category:123 Federal-Aid Highway Program#123.1.1 FHWA Oversight - National Highway System\|projects]] designated for federal involvement for conceptual reports on the PODI Matrix require approval of the conceptual study report by the FHWA. For these projects, the conceptual study report, regardless of the format, and any requested design exceptions are submitted to FHWA.		All [[:Category:123 Federal-Aid Highway Program#123.1.1 FHWA Oversight - National Highway System\|projects]] designated for federal involvement for conceptual reports on the PODI Matrix require approval of the conceptual study report by the FHWA. For these projects, the conceptual study report, regardless of the format, and any requested design exceptions are submitted to FHWA.

	The submittal of a [~~[media~~:~~128 4R Conceptual Study Report~~.~~doc\|~~4R conceptual report]] to FHWA is a specialized case. All other conceptual study reports are submitted to Design. For projects designated for federal involvement for design exceptions on the PODI Matrix, upon approval of the design exceptions by the State Design Engineer, Design will send a transmittal letter and necessary information to FHWA for review and approval of all design exceptions pertaining to the controlling criteria, as described in EPG 131. Upon receipt of FHWA approval, the Design Division will inform the district to proceed with the design of the project and forward a copy of the approval action and signed design exceptions.		The submittal of a [https://epg.modot.org/forms/CM/4R_CONCEPTUAL_STUDY_REPORT.docx 4R conceptual report] to FHWA is a specialized case. All other conceptual study reports are submitted to Design. For projects designated for federal involvement for design exceptions on the PODI Matrix, upon approval of the design exceptions by the State Design Engineer, Design will send a transmittal letter and necessary information to FHWA for review and approval of all design exceptions pertaining to the controlling criteria, as described in EPG 131. Upon receipt of FHWA approval, the Design Division will inform the district to proceed with the design of the project and forward a copy of the approval action and signed design exceptions.

	Projects not listed for federal involvement for design exceptions on the PODI matrix and design exceptions not related to the controlling criteria, as described in EPG 131, do not require direct federal oversight and therefore are not submitted to FHWA for approval. The district engineer may approve the conceptual study report, 3R conceptual study report, or 4R conceptual study report for these projects. A copy of these reports is forwarded to Design. For those projects where a [[131.1 Design Exception Process\|design exception]] is required the district engineer’s approval is also necessary. The district must submit a copy of the approved design exception to Design.		Projects not listed for federal involvement for design exceptions on the PODI matrix and design exceptions not related to the controlling criteria, as described in EPG 131, do not require direct federal oversight and therefore are not submitted to FHWA for approval. The district engineer may approve the conceptual study report, 3R conceptual study report, or 4R conceptual study report for these projects. A copy of these reports is forwarded to Design. For those projects where a [[131.1 Design Exception Process\|design exception]] is required the district engineer’s approval is also necessary. The district must submit a copy of the approved design exception to Design.