Design Policy Manual

2y ago
25 Views
5 Downloads
9.38 MB
361 Pages
Last View : 20d ago
Last Download : 2m ago
Upload by : Maleah Dent
Transcription

Design Policy Manual1/22/2021Revision 6.3Atlanta, GA 30308

This document was developed as part of the continuing effort to provide guidance within theGeorgia Department of Transportation in fulfilling its mission to provide a safe, efficient, andsustainable transportation system through dedicated teamwork and responsible leadershipsupporting economic development, environmental sensitivity and improved quality of life.This document is not intended to establish policy within the Department, but to provideguidance in adhering to the policies of the Department.Your comments, suggestions, and ideas for improvements are welcomed.Please send comments to:State Design Policy EngineerGeorgia Department of TransportationOne Georgia Center600 W. Peachtree Street, 26th FloorAtlanta, Georgia 30308DISCLAIMERThe Georgia Department of Transportation maintains this printable document and is solelyresponsible for ensuring that it is equivalent to the approved Department guidelines.

Design Policy ManualRevision HistoryRevision NumberRevision DateRevision Summary1.05/12/06Original Manual2.05/21/07General reformatting to provide a user-friendlyonline version3.06/11/10Editorial and formatting changes to Chapter 1-7 andthe addition of Chapter 8, Roundabouts.4.08/11/14Reformatted manual to new standard template4.18/25/14Removed list paragraphs throughout manualChapter 3 - Added “Easement for Temporary BridgeConstruction Access” to Section 3.8.3 SpecialTypes of Right-of-WayChapter 9 - Removed "FHWA Requirements forCurb Ramps" from Section 9.4.1; Added referenceto Section 11.1 (ADA Requirement to Provide CurbRamps) under "Curb Ramps" in Section 9.5.1;Added "Mid-Block Crossing" to Section 9.5.1Chapter 11 - Added “ADA Requirements to ProvideCurb Ramps” to Section 11.1Chapter 14 - Updated Section 14.3.3 to include the80' criteria from RP-22-114.29/23/14This edit updated the language in Section 9.5.1 thatreferences Section 11.1.4.310/7/14Chapter 4 – Added language to state that DesignException is required if the State’s superelevationrate cannot be met.Chapter 6 - Added language to discuss the use ofmethod 1 temporary barrier for construction stagingof a roadway.4.411/5/14Chapter 4 - Removed the paragraph referring to theDepartment’s org-chart from section 1.4. The chartis already mentioned in section 1.2.4.511/21/14Chapter 2 - Section 2.2 was updated to include thenew email address for project managers anddesigners to electronically submit all designexceptions and design variances.4.63/23/15Chapter 11 - Added note to Table 11.1 regardingsafety enhancement4.75/11/15Acronyms and Definitions – Updated hyperlinksChapter 1, 2, 3, 6, 7, 8, 9, 11, 13, 14 - UpdatedhyperlinksReferences – Updated hyperlinks4.86/5/15Chapter 2 – Updated minor infoPage i

Design Policy ManualChapter 3 - Updated Green Book infoChapter 4 - Removed statement requiring anexception for determining and locatingsuperelevation runoff, runout and transitions.Updated Green Book info.Chapter 5 - Updated Green Book info.Chapter 6 - Changed “Interstate Medians” to“Freeway Median”, 6.12.1. Updated Green book infoChapter 8 - The "SIDRA Standard" methodenvironmental factors of the opening year anddesign year were changed.Chapter 9 - Added a reference in regards to FHWAhas posted a new separated bike lane planning anddesign guide.4.96/19/15Chapter 6 - Updated Curb and gutter method ofconstruction4.109/18/15Chapter 3 – Updated Table 3.1 to correct line layoutof Interstate/Freeway Ramp to have the word Rampon a separate line.4.111/5/16Chapter 4 – Deleted minor infoChapter 8 – Deleted contact info for safetyassessmentsChapter 9 – This chapter is a rewrite. Updated withnew and current practice. Updated list ofpublications. The illustration of sidewalk along ruralroadways was updated. Language regarding“structurally impractical” and “technically infeasible”for not meeting PROWAG requirements was added.A design criterion for bus loading pads was added.Language for bike lanes, intersections andconnections between different bikeway types wasadded.Chapter 11 – Updated 11.1 title4.122/17/16Chapter 55.2 Added a policy that all bridge columns should beprotected regardless of median width.5.3 In addition to the minimum lateral offsets givenin Table 5.3, the designer shall ensure there is aminimum of 1.5-ft from the face of curb to the faceof tree at tree’s mature growth.5.4 Relocated barrier section from chapter 6.11 tochapter 5.4.5.4.3 Added an end terminal selection flow chart.5.4.3 Added language for end treatments and crashcushion types.5.4.3 Developed a crash cushion selectionflowchart.Page ii

Design Policy ManualChapter 66.11 Removed chapter 6.11 barriers. This wasrelocated to chapter 5.4.6.13 Back-in angle parking was added as apreferred type of on-street parking.6.15 Added the requirement bicycle lanes should be5-ft when adjacent to header curb, guardrail or othervertical surface. A 6-ft width bicycle lane should beused adjacent to a concrete barrier, where practical.6.15 Revised illustrations for clarity on the bikeableshoulder.Chapter 7 - Section 7.3 median opening spacingpolicy was updated to allow for flexibility oninnovative intersections. The spacing may be closerif an operational study supports this finding.Chapter 11Updated chapter to current AASHTO Green Book &2011 AASHTO Roadside Design Guide standards.Added language from the Roadside SafetyHardware announcement made on January 1, 2016.This is the implementation of MASH.11.1 Added the criteria that on alteration projectsadjacent sidewalk must be upgraded (if needed).11.1 Added language that the omission of theinstallation of curb ramps or upgrade adjacentsidewalk shall require the prior approval of a DesignVariance.Changed table 11.1 to match the memo sent toFHWA on 31Aug15.4.135/6/16Chapter 2 - Shoulder Width was added to the list ofGDOT Standard Design Criteria.Chapter 5 - An illustration for the guidelines of wbeam guardrail placement was added. Minorchanges in wording were made regarding highspeed roadways. This change more aligns withwording in the AASHTO Green Book.Chapter 6 - Modifications were made on when 4%cross slope on a tangent section can be applied. Itnow requires an engineering study be placed in theproject record when used. Shoulder Width for highvolume high speed rural collectors and ruralarterials was clarified as being a GDOT StandardDesign Criteria. Minor changes in wording weremade regarding high speed roadways. This changemore aligns with wording in the AASHTO GreenBook. Illustration of Typical Dimensions for RuralFreeway was added.Chapter 8 - Minor changes in wording were maderegarding high speed roadways. This change morePage iii

Design Policy Manualaligns with wording in the AASHTO Green Book.Chapter 11 - An illustration of guardrail placement inareas with restricted right of way and limitedshoulder width was added.4.146/17/16Chapter 14 – Revised entire Lighting procedures4.157/21/16Acronyms and Definitions – Added new definitionsChapter 2 - Tangent Lengths on Reverse Curveswith a design speed 50 mph was added to the listof design variances. Table 2.1 Exception to DesignStandards was added to clarity on when a designexception or design deviation is required.Chapter 3 - 3.2 The entire section regarding adesign vehicle was updated. Clarification was madebetween a design vehicle and a check vehicle. Anillustration for designing verses accommodating avehicle was added. Oversize overweight need andaccommodation was introduced.Chapter 4 – 4.2.2 Tangent Lengths on ReverseCurves with a design speed 50 mph was added tothe list of design variances. Section 4.3.2 PROWAGrequirements and its effect on vertical alignmentlanguage was modified for clarification. The VerticalProfile Clearance Based on High Water Table wasremoved due to information is in the GDOTDrainage Manual. The Superelevation RotationPoints and Rotation Widths table was modified forconsistency on the horizontal location of rotationpoint.Chapter 5 - Design exceptions and design varianceswere updated to reflect the change in policy fromthe FHWA Memorandum. Updated other minor infoChapter 6 - Design exceptions and design varianceswere updated to reflect the change in policy fromthe FHWA Memorandum. Updated other minor info.Chapter 11 - Design exceptions and designvariances were updated to reflect the change inpolicy from the FHWA Memorandum. Updated otherminor info,References - AASHTO, A Policy on DesignStandards – Interstate System 2016 editionreplaced the 2005 edition. Several IESNApublications were updated to the current editions.4.169/13/16Chapter 4 – Corrected Design Speed in Table 4.10Chapter 9 – Added reference to Design Reference4.179/29/16Chapter 3 – Updated Design Vehicles proceduresChapter 4 – Updated minor info4.181/20/17Chapter 6 – Updated pedestrian crossings info.Added reference to Pedestrian Streetscape Guideand Public Rights-of-WayPage iv

Design Policy ManualChapter 7 – Added reference to PedestrianStreetscape Guide and Public Rights-of-WayAccessibility Guidelines manualChapter 9 – Added reference to Public Rights-ofWay Accessibility Guidelines manual4.194/4/17Chapter 7 – Updated PROWAG hyperlink. Section7.3 Clarification was made on intersection controlfor median openings on six-lane roadways.Chapter 13 – Revised sections 13.1 and 13.2 toreference Traffic Forecasting Manual. Addeddefinition of Design Hour Volume (DHV), AnnualAverage Daily Traffic (AADT), Peak Hour Volume(PHV) and Design Year. Deleted section 13.6.4.204/18/17Chapter 4 - Added example that decision sightdistance should be considered at six-lane roadwayswith at-grade intersections.Chapter 6 - A decision to use a noise wall materialother than precast concrete panels or interlockingsteel panels, where a lighter material is necessary,will require written approval from the GDOT ChiefEngineer.4.216/1/17Acronyms and Definitions – Updated Work zonedefinitionChapter 3 – Section 3.5.2 Consideration for breaksin access will follow the newly outlined proceduresin chapter 6 of the PDP.4.228/22/17Chapter 9 - Bicycle Warrants were removed for allnew and widened bridges.Bicycle warrants were removed on retained bridgeswhere a bridge deck is being replaced orrehabilitated and the existing bridge width allows fora wide enough shoulder for bike accommodations(i.e. greater than or equal to 5 ft) without eliminating(or precluding) needed pedestrian accommodations.Clarified where a bike warrant is met, theappropriate type of accommodation should bedetermined using the AASHTO, Guide for theDevelopment of Bicycle Facilities.Added On retained bridges where a bridge deck isbeing replaced or rehabilitated on a highway whichbicycles are permitted to operate at each end,reference Title 23 United States Code, Chapter 2,Section 217, Part (e) for requirements.Added bicycle and pedestrian warrant exclusion forroutes on which they are specifically not allowed.Added Figure 9.9 Illustration of Shared Use Path onBridge Structure Minimum Dimensions.4.2310/3/17Chapter 2 – Deleted Bridge and Structural Manualfrom Design Criteria. Added new section 2.2.3Design Variances for Off-System Roadway.Updated Table 2.1 Exception to Design StandardsPage v

Design Policy Manual4.2410/24/17Chapter 6 - Rumble strip placement has beenupdated to reflect the change in GDOT Details.Requirements on when to apply edge lines hasbeen added. Rumble strip placement will now berequired for 40 mph or greater roadways.4.2512/4/17Chapter 4 – Section 4.1.6 - Updated info regardingsharp angle turns. Added policy Intersection ControlEvaluation (ICE) and FHA Diverging DiamondInterchange Informational info5.012/22/17Chapter 2 – Added Access Control to GDOTStandard Criteria in Table 2.1Chapter 10 – Added info regarding PavementDesign5.13/8/18Chapter 10 – Updated Design ResourcesreferencesChapter 11 – Updated info regarding bicyclewarrants. Replaced Figure 11.25.24/6/18Chapter 3 – Removed (min) references from Table3.1Chapter 8 - Updated to include the IntersectionControl Evaluation (ICE) Policy. Updates providesthe Design Engineer with guidance for the designand review of roundabouts in the state of Georgia,as it relates to the ICE Policy.Chapter 11 – Updated guardrail repairrequirements. Table 11.1 changed NCHRP 350references to MASHChapter 14 - Section 14.3.8 was revised from Minor(Permitted) Lighting to Permitted Lighting. Anyreference to four or less luminaires was removed toreduce confusion.5.34/24/18Chapter 9 – Added references to the state codegiving GDOT the ability to design limited-accessroadways and regulate controlled-access roadwayswithin jurisdiction. Table and figures representingthe minimum dimensions for shared-use-pathoptions across bridges with respect to the designspeed, functional classification of the roadway, andthe physical constraints between the bridgebarriers/parapets was also added.Chapter 11 – Section 11.1.2 Added minor info toretained bridges5.46/18/18Chapter 3 – Added new section Easement forMaintenance of Retaining WallsChapter 7 – Section 7.6 - Updated RailroadCrossing Improvement Office hyperlink andinformation. Deleted info regarding train activatedwarning devices info. Updated FHWA Traffic ControlDevices hyperlink. Section 7.6.7 - UpdatedAdjustment Factor for School BusesPage vi

Design Policy ManualChapter 9 – Correct Special Provision sectionnumbering. Changed from 150.02-K to 150.1.04-C.Deleted information regarding multi-use path fromShared Use PathsChapter 10 – Section 10.10.2 - Deleted referenceregarding aggregate surface course and replacedwith asphalt for earth. Replaced dirt drives withgravel drives5.57/9/18Updated GDOT logo throughoutChapter 14 - Removed the years from list ofreferences.Added the AASHTO Roadway Lighting DesignGuide to the list of references.Section 14.3.5: added Maximum Veiling Luminanceto the requirements for the photometric reviewsubmittal.Added a note in the High Mast Tower sectionpertaining to bat habitat ESAs.Added clarification on the daytime lightingrequirement for tunnels and underpasses.Revised Section 14.3.3. Roundabouts andIntersections.Miscellaneous grammatical revisions.5.69/6/18Chapter 10 – Section 10.6.2 changed designconsiderations from the Guidelines for Superpaveand Other Mix Types Selections to Criteria for Useof Asphaltic Concrete Layer and Mix TypesChapter 11 – Section 11.1.1 added informationregarding Rumble Strips and new table 11.2Rumble Strip Placement.Updated table numbers throughout.Figure 11.2 Changed AASHTO Minimum BarrierPlacement with 8-ft post to AASHTO MinimumBarrier Placement with 7-ft post.5.711/15/18Chapter 5 – Replaced Figure 5.3Chapter 10 - Section 10.6.3 Constructability.Changed "permanent" pavement is to "temporary".Chapter 11 – Values in Table 11.3 were updated tonew Green Book Standard. Bridge informationtables were removed and referenced to GreenBook, and Bridge and Structural Design Manual forguidance. Sidewalk repair was removedChapter 14 - Revised Section 14.3.4 - VehicularUnderpass/Tunnel to provide clarification on tunnellighting recommendations based on the updatedAASHTO Roadway Lighting Design Guide.5.812/21/18Chapter 3 - Addition of section 3.5.3 Right of Wayand Limit of Access Line Descriptions. Addition ofPage vii

Design Policy Manualfigure 3.2 Limit of Access Control - LineDescriptions. Update on reference to GDOT Bridgeand Structures Manual for "design and installation offence and handrail on bridges". Updates related tothe new Green Book where applicable.Chapter 4 - Updates related to the new Green Bookcriteria. Intersection Skew angle criteria changedfrom 70 to 75 degrees to be consistent with the newGreen Book. Update of table 4.5 Maximum VerticalGrades.Chapter 6 - Updates throughout the chapter tomatch information with the new Green Book. Tables6.4, 6.5 updated to match new Green Book criteriaChapter 7 - Updates throughout the chapter tomatch with new Green Book informationChapter 8 - Section 8.2.6. Public involvementprocess reworded for clarity.Chapter 10 – Added reference Guidelines forCapital Maintenance Projects to 10.2 DesignResourcesChapter 11 - Text on page 11-12 was corrected toreference table 11-4.Chapter 14 - Revised the language for the LumpSum (LS) Lighting Program. Added guidance forlighting at mini-roundabouts. Revised Section 14.4.4to add clarification on metered and non-meteredsystems. Miscellaneous grammatical revisions.Reference Chapter - Updated references to newGreen Book.5.95/7/19Chapter 6 - Added a section regarding theappropriate usage of header curb and offsets onState Routes and NHS roadways. Added languageregarding the consideration of usage for 4-ft wideflush medians.Chapter 8 - Removed the requirement for peerreviews and other minor changes.Chapter 9 – Minor update to section numberChapter 10 - Changed the language to approval bythe State Pavement Engineer instead of thePavement Design Committee. Changed and addedreferences for design resources. Changed theminimum temporary pavement structure. Thisreflects the new criteria for mix designs that waspublished in 2018. Truck percentage was droppedin favor of AADTT. Other minor changes weremade.Chapter 12 - New chapter that purpose is to providegeneral design guidance and typical practices fordeveloping stage construction plans.Page viii

Design Policy Manual5.105/31/19Chapter 14 - Updated list of references. Updatedchapter based on the updated IES RP-8. Addedsection for toll plazas.Reference – Updated references5.117/3/19Chapter 10 - Minor formatting and referencechanges throughout the chapter.10.3.2: Clarification was made that 2 designs areto be included in the Pavement Design Package.10.6.2: The new underdesign policy based on SRpriority was updated.10.6.3 Temporary Pavement: Reference was addedto the new target based on revised underdesignpolicy.10.10.2 Driveways: Specified recycled asphaltconcrete 9.5 mm Superpave Type II for standarduse5.128/28/19Chapter 3 - Corrected spellings and hyperlinkscorrections were made in section 3.2.35.1310/29/19Chapter 5 – 5.4.3 updated AASHTO Manual forAssessing Safety Hardware referenceChapter 88.2.4 – corrected table reference and updatedIlluminating Engineering Society (IES) reference.Changed8.4.1 – updated IES reference and hyperlink8.4.2 – updated references and hyperlinksChapter 13 – Updated Table 13.2Chapter 14 - Section 14.3.3. Intersections andRoundabouts. Changed from “Table 12.2 & 12.2” to“Table 12.1 & 12.2”.References – Updated publications references6.06/8/20Updated template to comply with corporate brandingguidelinesVersion number for all sections were all updated to6.0 to reflect the overall manual version numberChapter 2 - Section 2.1.2 corrected NATCO toNACTOChapter 4 - Section 4.3.2: Removed max verticalgrades exceptions listed in Chapter 4 and redirectedto AASHTOChapter 5 - 5.4.1 Updated statement regardingguardrail placement behind curb face.Chapter 66.14.2: Updated guidance for guardrail placement infront of noise wallPage ix

Design Policy Manual6.14.4: Removed reference to previous LRFDmanual and removed vehicular collision design.Updated to reference Bridge Design ManualChapter 12 - Section 12.4.8.2: Updated guidanceregarding minimum offset between existing andproposed bridge during staged construction.ReferenceReference Publication:- Corrected NATCO to NACTO on both list andunder images.- Updated note next to AASHTO. StandardSpecifications for Highway Bridges, 17th Edition.2002.- Added AASHTO LRFD Image and title. Updatedcorresponding note.6.18/24/20Chapter 2Section 2.2.1: Added guidance regarding designexceptions for connecting roadways to high-speedNHS facilities.Table 2.1: Added note to reflect guidance regardingdesign exceptions for connecting roadways to highspeed NHS facilities.Chapter 4Section 4.3.2: – Corrected guidance regardinggrade of pedestrian access at pedestrian streetcrossings.Chapter 6Minor corrections to DPM and PedestrianStreetscape Guide references throughout chapter.Revised figure numbering throughout.Section 6.9: Upda

Design Policy Manual Page i Revision History Revision Number Revision Date Revision Summary 1.0 5/12/06 Original Manual 2.0 5/21/07 General reformatting to provide a user-friendly online version 3.0 6/11/10 Editorial and formatting changes to Chapter 1-7 and the addition of Chapter 8, Roundabouts.

Related Documents:

Toys and Technology Policy Science Policy End of Day Policy Substitute Policy Sick Policy Co-Op Closure Policy Events Outside of Co-op Volunteer Responsibilities Cooperative Policy Age group Coordinator . 3 Lead & Co-Teaching Policy Co-Teaching Policy Class Assistant

address-family ipv6 unicast network . 2001:468::/48 route-policy EX1 redistribute connected route-policy EX2 neighbor 2001:db8::1 route-policy EXAMPLE1 in route-policy EXAMPLE2 out vrf FOO address-family ipv6 unicast import route-policy EXAMPLE1 export route-policy EXAMPLE2 Single-policy at attachment point Attach a policy at:

Allocations and Development Management Plan Policy Listing Policy Ref Chapter / Policy Title PAGE NO. Chapter 1 Sustainable Communities and Development Principles 9 Policy SC 1 Presumption in Favour of Sustainable Development 12 Chapter 2 Environment 14 Policy EN1 Design Principles 15 Policy EN2 Amenity Protection 17 Policy EN3 Demolition in Conservation Areas 20 Policy EN4 Heritage Assets 21 .

April 2018 Name of Policy Child protection and Safeguarding Policy, Education Scotland – Inclusion and Equality Description of Policy Policy Number Policy Status New Revision of Existing Policy Withdrawal of Policy Scottish Government Adopted Author Monica McGeever, Lead Officer Safeguarding Owner and business area Inclusion and Equality

Jun 06, 2019 · Policy Review Checklist Policy Template All policies should be in the current Policy Template. Yes, in the current Policy Template No, needs to be put into current Policy Template Check footer for policy tile and approval date Policy Title Expresses t

Subject: Proposed modifications to the Federal PKI Common Policy Framework Certificate Policy Date: April 13, 2021-----Title: Federal PKI Key Recovery Policy Consolidation into Common Policy Version and Date of Certificate Policy Requested to be changed: X.509 Certificate Policy for the Federal PKI Common Policy Framework Version 2.0, September .

Policy and Procedure Manual Section X Management of Human Resources PERSONNEL: DEFINITIONS POLICY X-4 Page 1 of 1 PURPOSE: The purpose of this policy is to standardize the terms used in the Personnel Policy and Procedure Manual. POLICY: The terms listed below should be interpreted as is indicated beside each term. 1.File Size: 446KB

Template De-identified Finance Policy & Procedures Manual. Version 1.0. 2 AHO Finance Policy and Procedures Manual Purpose The policy objectives of the Finance Policy and Procedure Manual are: To set and sustain best practice in financial management. To meet the external reporting requirements and compliance obligations of