Difference between revisions of "Main Page"

From Engineering_Policy_Guide
Jump to navigation Jump to search
m (fixed google search link)
Line 1: Line 1:
[[Image:EPG 2013b.jpg|1080px|center]]
+
__NOTOC__
 +
<div style="margin-top:0px; margin-bottom:0px; background-color:black; border-radius:5px; box-shadow:5px 5px 5px #888888; border:1px solid black">
 +
<center>
 +
<div class="jcarousel-wrapper" style="margin-top:7px; margin-bottom:0px">
 +
<div class="jcarousel jcarousel-randomize">
 +
    <div class="jcarousel-list">
 +
        <div class="jcarousel-item">
 +
{{banner|direction=left|width=20%||section=Engineering Policy Guide|section-link=Main Page|image=EPG-001.png}}
 +
        </div>
 +
        <div class="jcarousel-item">
 +
{{banner|direction=left|width=40%||section=Engineering Policy Guide|section-link=Main Page|image=EPG-002.png}}
 +
        </div>
 +
        <div class="jcarousel-item">
 +
{{banner|direction=left|width=40%||section=Engineering Policy Guide|section-link=Main Page|image=EPG-007.png}}
 +
        </div>
 +
        <div class="jcarousel-item">
 +
{{banner|direction=left|width=40%||section=Engineering Policy Guide|section-link=Main Page|image=EPG-004.png}}
 +
        </div>
 +
        <div class="jcarousel-item">
 +
{{banner|direction=left|width=40%||section=Engineering Policy Guide|section-link=Main Page|image=EPG-005.png}}
 +
        </div>
 +
        <div class="jcarousel-item">
 +
{{banner|direction=left|width=40%||section=Engineering Policy Guide|section-link=Main Page|image=EPG-006.png}}
 +
        </div>
 +
        <div class="jcarousel-item">
 +
{{banner|direction=left|width=40%||section=Engineering Policy Guide|section-link=Main Page|image=EPG-003.png}}
 +
        </div>
 +
    </div>
 +
</div>
 +
</div>
 +
</center>
 +
</div>
  
 
+
{| style="text-align:center; margin-top:12px; margin-left: auto; margin-right: auto; font-style:italic; font-size:20px; font-family:Verdana, Geneva, sans-serif !important;"
{|style="padding: 0.3em; margin-left:0px; border:3px solid #a9a9a9; text-align:center; font-size: 100%; background:#E3C87E" width="1080px" align="center"
 
|-
 
|rowspan="3" align="right" |'''<font color = "white"><font size = 4.7><i>HELPFUL EPG VIDEOS: </i></font color="white"></font size = 5>|| ||align="left"|''' '''<BIG><font color = "white"><i>[[media:Logging into the EPG.wmv|•Logging into the EPG]]</i></font color="white">
 
|-
 
| ||align="left"|''' <BIG><font color = "white"><i>[[media:Help Finding EPG Info.wmv|•Finding Info in the EPG]]</i></font color="white">
 
|-
 
| ||align="left"|''' <Big><font color = "white"><i>[[media:Article History and Receiving.wmv|•Article History & How to Receive EMails When Articles are Revised]]</i></font color="white">
 
|-
 
|colspan="3" align="center"| <sup>'''___________'''</sup>
 
|-
 
|colspan="3" align="center"| '''<Big><font color = "white"><i>Want help on how to update your EPG guidance? &nbsp;It is available at [[:Help Article#EPG Approval Process|EPG Approval Process]].'''</i></font color="white">
 
 
|-
 
|-
|colspan="3" align="center"| <sup>'''___________'''</sup>
+
! style="padding-left:90px; padding-right:90px; |
|-
+
----
|colspan="3" align="center"| '''<Big><font color = "white"><i>[http://www.modot.org/business/standards_and_specs/highwayreadme.htm The Electronic MoDOT Spec Book for Mobile Devices] is now available '''</i></font color="white">
+
Our mission is to provide a world-class transportation system that is</br>safe, innovative, reliable and dedicated to a prosperous Missouri.
 +
----
 
|}
 
|}
  
 
+
{| style="width:100%; text-align:center; margin-top:0px;"
 
 
<div style="padding-bottom: .3em; margin: 0 .5em .5em"></div>
 
{| cellspacing="3"
 
|- valign="top" width="100%"
 
|style="border: 1px solid #696969; color: #000; background-color: #A9A9A9"|<big><center>'''<font color = "white"><i>WELCOME'''</i></font color="white"></center></big>
 
| valign="top" width="60%" cellspacing="3" cellpadding="3" style="border: 1px solid #FF8C00; background:#FFA500" align="center"|'''<big><font color="white"><i>RECENT POLICY CHANGES IN THE EPG</i></font color="white"></big>'''
 
 
|-
 
|-
|valign="top" style="border: 1px solid #A9A9A9; color: #000; background-color: #F8F8FF"|
+
| [[image:recent_changes.png|210px|bottom|link=Recent Policy Changes in the EPG]]
{| style="margin: 1em auto 1em auto"
+
| [[image:TA_image.png|210px|bottom|link=616.8 Typical Applications (MUTCD 6H)]]
 +
| [[image:MASH_info.png|210px|bottom|link=https://epg.modot.org/files/c/ce/MASH_Implementation.pdf]]
 
|-
 
|-
|colspan="2" |    [[image:Main Page Aug 12, 2014.jpg|center|390px]]
 
|-
 
|<center>'''  When [[910.3 Dynamic Message Signs (DMS)| Dynamic Message Signs]] are not showing emergency or lane closure information, they display safety reminders.  Recently, they have been given a hint of sarcasm and humor to resonate with motorists.  '''  </center>
 
|-
 
|colspan="2" |    [[image:Main Page 2 Aug 12, 2014.jpg|center|390px]]
 
|-
 
|colspan="2" |    [[image:Main Page Aug 8, 2014.jpg|center|390px|thumb|<center>'''  Construction continues on the new [http://www.modot.org/stlouis/major_projects/newdanielboonebridge.htm I-64 Daniel Boone Bridge over the Missouri River].  '''  </center>]]
 
|-
 
|colspan="2" |  [[image:Main Page 2 Aug 8, 2014.jpg|center|390px|thumb|<center>'''  In Oak Grove, MoDOT is [http://www.modot.org/kansascity/major_projects/Route_F_Widening.htm widening Rte. F] to four lanes with a turn lane, creating a 5-lane roadway between 13<sup>th</sup> and 31<sup>st</sup> Sts. south of I-70.  The project is expected to be completed this fall.  '''  </center>]]
 
 
|}
 
|}
  
MoDOT has made great strides to build a good transportation system and increase taxpayers' trust in its ability to deliver what was promised. Innovative concepts, such as [[:Category:143 Practical Design|Practical Design]] and [[:Category:139 Design - Build|design-build]], were used to deliver those commitments and have made MoDOT a leader in the transportation industry.
+
<div style="margin-top:12px; font-size:95%; padding:5px; border:1px solid black;background-color:white; color:black; border-radius:5px; box-shadow:5px 5px 5px #888888">
 +
<b>MoDOT’s three pillars of “Safety, Service and Stability” steer our leadership and employees.  Our commitment to safety includes keeping both customers and ourselves safe.  Our service includes providing outstanding customer service, delivering transportation solutions of great value and using resources wisely.  Keeping roads and bridges in good condition, operating a reliable and convenient transportation system, and advancing Missouri’s economic development reflect our commitment to stability.<br/>Innovative concepts, such as [[:Category:143 Practical Design|Practical Design]] and [[:Category:139 Design - Build|design-build]], are used to deliver our commitments.  These and other forward-thinking concepts shape the content of the ENGINEERING POLICY GUIDE (EPG). This document provides a single reference for all engineering and engineering-related [https://modotgov.sharepoint.com/sites/br Bridge], [https://modotgov.sharepoint.com/sites/cm Construction], [https://modotgov.sharepoint.com/sites/DE/ Design], [https://modotgov.sharepoint.com/sites/ts Highway Safety & Traffic], [https://modotgov.sharepoint.com/sites/mt Maintenance], [https://modotgov.sharepoint.com/sites/tp Planning] and [https://modotgov.sharepoint.com/sites/DE/SitePages/Right-of-Way.aspx Right of Way] guidance.</b>
 +
</div>
  
These forward-thinking, innovative concepts are reflected in the ''ENGINEERING POLICY GUIDE'' (EPG).  This document provides a single reference for all engineering and engineering-related guidance by combining the former [http://wwwi/intranet/rw/ Right of Way], [http://wwwi/design/default.htm Design], [http://wwwi/intranet/br/default.htm Bridge], [http://wwwi/intranet/cm/ Construction], [http://wwwi/intranet/tr/ Traffic] and [http://wwwi/maintenance/ Maintenance] manuals.
+
{| style="width:100%; text-align:center; margin-top:12px;"
 
 
MediaWiki, the engine behind the Wikipedia on the World Wide Web, is the software delivering the EPG.  Over 20 million hits on the EPG endorse this format to be easy to navigate and pleasing to read.  A small [[:Help:Contents|'''HELP ARTICLE''']] is included to assist with helpful hints on how to use the EPG as well as other points of interest.
 
 
 
{| style="margin: 1em auto 1em auto"
 
|-
 
|colspan="2" | [[image:Main Page Aug 4, 2014.jpg|center|390px|thumb|<center>'''  Maint. Worker Anthony Crusha was presented with the Meritorious Safety Award, MoDOT’s highest honor, for his role in saving a motorist’s life. On Thursday morning, June 12th, Crusha was traveling to work in pouring rain on Rte. 7. In a ditch he noticed an overturned car filling with water. He pulled over to check on the vehicle and was joined by a FedEx truck driver who had seen Crusha stop. Jumping into the waist-high rushing water, Crusha and two other motorists who had stopped were able to break through the victim’s window with a tire iron and pull him out. Within minutes, the victim was free. The victim’s family and friends later came by the Cass County Maint. Bldg. to be photographed thanking Anthony.      '''  </center>]]
 
|}
 
 
 
{| style="margin: 1em auto 1em auto" style="background-color: #F8F8FF"
 
|-
 
|colspan="2"|'''Perhaps you've wondered how many hits the most popular EPG articles have.  As of mid-August, the numbers of hits are:'''
 
|-
 
|'''20.'''  [[:Category:400 FLEXIBLE PAVEMENT|EPG 400]], 100067 ||'''10.''' [[:Category:616 Temporary Traffic Control|EPG 616]], 145993
 
|-
 
|'''19.'''  [[751.5 Standard Details|EPG 751.5]], 100863    ||'''9.'''  [[:Category:101 Standard Forms|EPG 101]], 173852
 
|-
 
|'''18.'''    [[903.6 Warning Signs|EPG 903.6]], 101179  ||'''8.''' [[:Category:600 INCIDENTAL CONSTRUCTION|EPG 600]], 179246
 
|-
 
|'''17.'''  [[:Category:134 Engineering Professional Services|EPG 134]], 104936    ||'''7.''' [[616.23 Traffic Control for Field Operations|EPG 616.23]], 180312
 
|-
 
|'''16.'''    [[136.4 Consultant Selection and Consultant Contract Management|EPG 136.4]], 106757    ||'''6.''' [[136.12 Figures, Glossary and Other Useful Links|EPG 136.12]], 181995
 
|-
 
|'''15.'''    [[751.40 Widening and Repair (Non-LRFD)|EPG 751.40]], 110669  ||'''5.''' [[:Category:100 GENERAL|EPG 100]], 220284
 
 
|-
 
|-
|'''14.'''    [[136.9 Plans, Specs and Estimates (PSE)|EPG 136.9]], 111025  ||'''4.''' [[:Category:700 STRUCTURES AND HYDRAULICS|EPG 700]], 228507
+
| [[image:Google search.png|200px|bottom|link=https://epg.modot.org/modot/EPG_GoogleSearch.html]]
 +
| [[image:Broken link.png|200px|bottom|link=mailto:engineering.policy@modot.mo.gov?Subject=Report%20a%20broken%20link&Body=Please%20include%20the%20broken%20link,%20article%20number%20and%20a%20screenshot%20if%20possible]]
 +
| [[image:Approval process.png|200px|bottom|link=Help_Article#EPS_Approval_Process]]
 +
| [[image:E-update.png|200px|bottom|link=Help_article#Signing_Up_for_E-Updates]]
 
|-
 
|-
|'''13.'''  [[620.2 Pavement and Curb Markings (MUTCD Chapter 3B)|EPG 620.2]], 113489  ||'''3.''' [[:Category:900 TRAFFIC CONTROL|EPG 900]], 246469
 
|-
 
|'''12.'''  [[:Category:903 Highway Signing|EPG 903]], 125824 ||'''2.''' [[:Category:751 LRFD Bridge Design Guidelines|EPG 751]], 276486
 
|-
 
|'''11.'''  [[:Category:200 GEOMETRICS|EPG 200]], 142877  ||'''1.''' EPG Main Page, 1660728
 
 
|}
 
|}
  
|valign="top" cellspacinepgg="0" cellpadding="5" style="border: 1px solid #FFA500; background:#ffdead"|
+
<div style="margin-top:12px; font-size:95%; padding:5px; border:1px solid black;background-color:white; color:black; border-radius:5px; box-shadow:5px 5px 5px #888888">
'''[[750.7 Non-Hydraulic Considerations#750.7.11.1 Minimum Fill Heights|EPG 750.7.11.1 Minimum Fill Heights]]'''
+
<b>The design concepts and criteria within the Engineering Policy Guide (EPG) are intended for use when designing new construction projects on new locations or designing reconstruction projects on existing locations. Projects on existing roadways call for a flexible, practical, and performance-based approach to design. The EPG encourages flexible and practical design, which emphasizes the role of the planning and design teams in determining appropriate design dimensions based on project-specific conditions and existing and future roadway performance, more than on meeting specific nominal design criteriaAlthough new design values and concepts may be presented throughout the EPG, this does not imply that existing roadways are unsafe, nor does it mandate the initiation of projects to improve existing roadways. While the EPG does include nearly all engineering related aspects of roadway design and maintenance it is not all encompassingThe use of properly equipped and maintained vehicles, operated by a capable user, is also pertinent to the safe and efficient operation of a transportation facility.</b>
 
+
</div>
8/12/14: Guidance has been added for minimum fill heights over box culverts. Also, guidance for minimum fill heights over pipes was updated.
 
 
 
'''Standard Detailing Notes'''
 
 
 
8/8/14: [[751.50 Standard Detailing Notes#A1. Design Specifications, Loadings & Unit Stresses|Note A1.1]] was updated for LRFD Seismic Design.
 
 
 
'''[[751.5 Standard Details#751.5.3 Hydraulics|EPG 751.5.3 Hydraulics]]'''
 
 
 
8/8/14: Guidance and flood data tables were updated to be consistent with practical design.
 
 
 
'''[[:Category:622 Pavement and Bridge Surface Removal and Texturing#622.2.1 Construction Inspection for Diamond Grinding of Existing Portland Cement Concrete Pavement (Sec 622.30)|EPG 622.2.1 Construction Inspection for Diamond Grinding of Existing Portland Cement Concrete Pavement]]'''
 
 
 
8/7/14: MoDOT and MDNR have agreed to a sixth precaution involving dispersal of diamond grinding residue.
 
 
 
'''[[236.5 Property Management#236.5.14 Release of Temporary Easements and Retention Clauses|EPG 236.5.14 Release of Temporary Easements and Retention Clauses]]'''
 
 
 
8/6/14: A fourth method is now available to release temporary easements or retention clauses.
 
 
 
'''Sidewalks'''
 
 
 
8/5/14: A new paragraph at the bottom of [[:Category:642 Pedestrian Facilities#Maintenance Responsibility|Maintenance Responsibility]] clarifies existing policy. Guidance in [[642.1 Sidewalk Design Criteria#642.1.1 Sidewalk Location and Width|EPG 642.1.1 Sidewalk Location and Width]] was revised to reflect the 4 ft. minimum width allowed after approval through the Design Exception process.
 
 
 
'''Updated QRGs'''
 
 
 
8/4/14: Two QRGs, [[media:Emergency Contacts 2014.docx|Emergency Contacts]] and [[media:Line Item Adjustments 2014.docx|Line Item Adjustments]], have been updated in [[:Category:101 Standard Forms|EPG 101 Standard Forms]].
 
 
 
'''EPG 902.15 Designing a Traffic Signal'''
 
 
 
8/1/14: The [[media:902.15 worksheets.xlsm|Signal Design Worksheets]] spreadsheet is now available.
 
 
 
'''Standard Detailing Note'''
 
 
 
7/29/14: The new note, [[751.50 Standard Detailing Notes#(A5.6)|A5.6]], will be used for all concrete superstructures where precast panels are used.
 
 
 
'''[[903.4 Overhead Guide Sign Mounting#903.4.12 Overhead Sign and Truss Inspection/Inventory|EPG 903.4.12 Overhead Sign and Truss Inspection/Inventory]]'''
 
 
 
7/29/14: This revison reflects the decision to move sign truss inspection responsibility to Bridge. There is no approved inspection frequency at this time.
 
 
 
'''[[:Category:203 Roadway and Drainage Excavation, Embankment and Compaction#Compacting in Cut (Sec 203.5.8)|EPG 203 Compacting in Cut]]'''
 
 
 
7/25/14: The extent of cut compaction has been extended to include unclassified material areas that fit the description of Class A material.
 
 
 
'''Design Exception Process'''
 
 
 
7/21/14: In [[131.1 Design Exception Process#131.1.5.1 Safety related features|EPG 131.1.5.1 Safety Related Features]], AASHTO's ''Highway Safety Manual'' analysis has been clarified.
 
 
 
'''[[751.50 Standard Detailing Notes#(B3.33) Use|Standard Detailing Note B3.33]]'''
 
 
 
7/21/14: In EPG 751.50,  Note B3.33 was added stating the maximum actual weight of corrugated steel stay in place forms used for girder loading. The weight of stay in place corrugated forms was not included on plans before, but since the depth of these forms is to be designed by manufacturer, the assumed weight of these forms for girder loading is given as a limit.
 
 
 
'''[[236.3 Administration#236.3.7.3 Contents of Clearance Certification|EPG 236.3.7.3 Contents of Clearance Certification]]'''
 
 
 
7/16/14: The copy of the estimate captioned "Acquisition Complete" is no longer to be attached to the certification when the project is certified clear.
 
 
 
'''FY 2015 Contract Level Course and Seal Coat Projects '''
 
 
 
7/14/14: Updated guidance for FY 2015 Contract Level Course and Seal Coat projects is now available in [[:Category:409 Seal Coat|EPG 409 Seal Coat]] and [[:Category:402 Bituminous Surface Leveling|EPG 402 Bituminous Surface Leveling]]. Each district will need to submit a list of their FY15 Contract Level Course and Seal Coat projects to allow statewide review of the groupings. Also, the PS&E submittal date will be pushed back to July 21, 2014 for the Contract Level Course and Seal Coat projects in the September 19, 2014 bid opening, to allow for revisions to be incorporated.
 
 
 
'''[[751.5 Standard Details#Mechanical Bar Splices|Mechanical Bar Splices]]'''
 
 
 
7/10/16: In EPG 751.5.11.1, new guidance specifies the need for additional mechanical bar splices when required in the approach slabs because of stage construction.  Also, new Standard Detailing Notes, [[751.50 Standard Detailing Notes#A3. All Structures|A3.6]] and [[751.50 Standard Detailing Notes#(B1.9.7) Use|B1.9.7]] were added and C.3 Mechanical Bar Splices was deleted.
 
 
 
'''ROW Leases and Airspace License Agreements'''
 
 
 
7/8/14: Guidance has been clarified and figures updated in [[236.5 Property Management#236.5.25.6 Security Assessment for Leased Areas Over or Under Highway Structures|EPG 236.5.25.6 Security Assessment for Leased Areas Over or Under Highway Structures]].
 
 
 
'''Updated QRGs'''
 
 
 
7/8/14: Two QRGs, [[media:Digital Signature for Adobe Pro 10 (Contractors) July 2014.docx|Digital Signature for Adobe Pro 10 (Contractors)]] and [[media:Digital Signature for Adobe Pro 10 (MoDOT) July 2014.docx|Digital Signature for Adobe Pro 10 (MoDOT)]], have been updated in [[:Category:101 Standard Forms|EPG 101 Standard Forms]].
 
 
 
'''Contractor Performance Evaluation'''
 
 
 
7/2/14: [[102.2 Contractor Performance Rating System|EPG 102.2 Contractor Performance Rating System]] now presents the latest version of the [[media:102.2 CPQ.pdf|Contractor Performance Evaluation Example Form]].
 
 
 
'''[[:Category:132 Safety#PPE Posters|PPE Posters]]'''
 
 
 
7/2/14: New PPE requirements are in effect for all MoDOT workers on MoDOT right of way with slightly different requirements for daytime workers, daytime flaggers, nighttime workers and nighttime flaggers. The most significant change is for nighttime flaggers (who shall wear highly visible and reflective hard hats). Contractors are also being held to the same standards as MoDOT employees.
 
 
 
'''[[104.13 Construction Inspection Guidance for Sec 104#Value engineering proposals must be submitted|EPG 104.13.2 Value Engineering Proposals, Concept Proposal]]'''
 
 
 
7/1/14: Guidance has been expanded to clarify for the resident engineers and any contractors of the minimum expectations for VECP and PDVECP submittal information.
 
 
 
'''[[:Category:109 Measurement and Payment#Contractor's Affidavit Regarding Settlement of Claims (C-242)|Contractor's Affidavit Regarding Settlement of Claims (C-242)]]'''
 
 
 
7/1/14: New guidance has been provided, reflecting existing C-242 practice, that answers what the RE should do when contacted by suppliers or subcontractors claiming they have not been paid by the prime contractor.
 
 
 
'''New Request for Environmental Services (RES) Form'''
 
 
 
6/30/14: The new [http://res/pages/default.aspx RES Form] and the associated [http://sharepoint/systemdelivery/RW/environmental_historic_pres/_layouts/WordViewer.aspx?id=/systemdelivery/RW/environmental_historic_pres/Shared%20Documents/RES%20instructions.docx&Source=http%3A%2F%2Fsharepoint%2Fsystemdelivery%2FRW%2Fenvironmental_historic_pres%2FShared%2520Documents%2FForms%2FAllItems%2Easpx%3FInitialTabId%3DRibbon%252EDocument%26VisibilityContext%3DWSSTabPersistence&DefaultItemOpen=1 instructions for the RES Form] are now available.
 
 
 
'''[[127.29 Storm Water|EPG 127.29 Storm Water]]'''
 
 
 
6/26/14: This article has been expanded to clarify existing policy.
 
 
 
'''[http://epg.modot.org/index.php?title=Category:110_State_and_Federal_Wage_Rates_and_Other_Requirements#Owner-Operator EPG 110.3 Prevailing Wages and Records, Owner-Operator]'''
 
  
6/25/14: Guidance was clarified about what is required before an RE can approve this owner-operator arrangement.
+
<div style="margin-top:12px; background-color:black; color:white; border-radius:5px; box-shadow:5px 5px 5px #888888">
 +
<center>'''The Engineering Policy Guide is maintained via the use of Microsoft Edge.  For optimal viewing quality, please choose Microsoft Edge for your browser.'''</center>
 +
</div>

Revision as of 16:31, 2 February 2024


Our mission is to provide a world-class transportation system that is
safe, innovative, reliable and dedicated to a prosperous Missouri.


Recent changes.png TA image.png MASH info.png

MoDOT’s three pillars of “Safety, Service and Stability” steer our leadership and employees. Our commitment to safety includes keeping both customers and ourselves safe. Our service includes providing outstanding customer service, delivering transportation solutions of great value and using resources wisely. Keeping roads and bridges in good condition, operating a reliable and convenient transportation system, and advancing Missouri’s economic development reflect our commitment to stability.
Innovative concepts, such as Practical Design and design-build, are used to deliver our commitments. These and other forward-thinking concepts shape the content of the ENGINEERING POLICY GUIDE (EPG). This document provides a single reference for all engineering and engineering-related Bridge, Construction, Design, Highway Safety & Traffic, Maintenance, Planning and Right of Way guidance.

Google search.png Broken link.png Approval process.png E-update.png

The design concepts and criteria within the Engineering Policy Guide (EPG) are intended for use when designing new construction projects on new locations or designing reconstruction projects on existing locations. Projects on existing roadways call for a flexible, practical, and performance-based approach to design. The EPG encourages flexible and practical design, which emphasizes the role of the planning and design teams in determining appropriate design dimensions based on project-specific conditions and existing and future roadway performance, more than on meeting specific nominal design criteria. Although new design values and concepts may be presented throughout the EPG, this does not imply that existing roadways are unsafe, nor does it mandate the initiation of projects to improve existing roadways. While the EPG does include nearly all engineering related aspects of roadway design and maintenance it is not all encompassing. The use of properly equipped and maintained vehicles, operated by a capable user, is also pertinent to the safe and efficient operation of a transportation facility.

The Engineering Policy Guide is maintained via the use of Microsoft Edge. For optimal viewing quality, please choose Microsoft Edge for your browser.