Traffic Engineering Manual - Louisiana

1 Traffic Engineering Manual Revised 04/2015 Traffic Engineering Manual Table of Contents I. Administrative Policies AUTHORIZATION FOR 2009 MUTCD .. 6 AUTHORIZATION FOR Traffic CONTROL DEVICES .. 7 PHOTO ENFORCEMENT PERMIT POLICY .. 8 II. Requirements Section STUDY OF Traffic Engineering LOCATIONS .. 21 Section Traffic Engineering WAIVERS .. 22 Section SIGNS .. 23 Section U CHANNEL SIGN POST SPLICE .. 24 Section USE OF TRUCK ROUTE SIGNS .. 25 Section USE OF NO TRUCK SIGNS .. 26 Section USE OF WEIGHT LIMIT SIGNS .. 28 Section USE OF NO HAZARDOUS CARGO SIGNS.

2 29 Section UNMUFFLED COMPRESSION BRAKE PROHIBITED SIGNS .. 30 Section LOUD MUSIC PROHIBITED SIGNS .. 33 Section INSTALLATION AND MAINTENANCE OF STOP SIGNS .. 35 Section KEEP RIGHT EXCEPT TO PASS/SLOWER Traffic KEEP RIGHT .. 36 Traffic Engineering Manual Section MOVE ACCIDENTS FROM TRAVEL LANES SIGNS .. 37 Section MOVE OVER .. 39 Section Traffic SIGNAL UNDER STUDY FOR REMOVAL SIGN .. 41 Section USE OF SIGNAL AHEAD SIGNS .. 42 Section USE OF LOW CLEARANCE SIGNS .. 43 Section WARNING SIGNS FOR PLAY ACTIVITIES .. 44 Section WARNING SIGNS FOR ANIMALS.

3 45 Section CHURCH WARNING SIGN POLICY .. 46 Section BRIDGE ICES BEFORE ROAD SIGN POLICY .. 47 Section JURISDICTIONAL BOUNDARY SIGNS ON INTERSTATE AND NON-INTERSTATE HIGHWAYS .. 48 Section GATEWAYS INTERSTATE AND NON-INTERSTATE HIGHWAYS .. 52 Section USE OF HOSPITAL SPECIFIC SERVICE SIGNS ON INTERSTATES/NON-INTERSTATES FOR EMERGENCY SERVICES .. 56 Section USE OF PHARMACY SIGNS ON INTERSTATE HIGHWAYS .. 59 Section USE OF SUPPLEMENTAL GUIDE SIGNS ON NON-INTERSTATE HIGHWAYS .. 61 Traffic Engineering Manual Section DESTINATION SIGNING FOR NON-CONTROL OF ACCESS ROUTES.

4 66 Section INSTALLATION AND MAINTENANCE OF LOCAL STREET NAME SIGNS .. 68 Section LANDSCAPE SPONSORSHIP SIGNS FOR ROUNDABOUTS .. 70 Section TOURIST INFORMATION AND WELCOME CENTER SIGNING .. 72 Section SCENIC RIVER SYSTEM SIGNING .. 74 Section WATERWAY SIGNING .. 75 Section ACKNOWLEDGEMENT SIGNS OR PLAQUES .. 76 Section MEMORIAL AND DEDICATION SIGNS .. 77 Section MARKED CROSSWALK GENERAL INFORMATION .. 81 Section NO PASSING ZONES .. 87 Section USE OF OBJECT MARKERS .. 89 Section REMOVAL OF Traffic SIGNALS .. 91 Section USE OF NON STANDARD Traffic SIGNAL POLES.

5 95 Section REMOVAL OF INTERSECTION CONTROL BEACONS .. 96 Section QUEUE ANALYSIS FOR LANE CLOSURES ON INTERSTATE .. 97 Traffic Engineering Manual Section POLICY FOR SCHOOL AREAS .. 99 Section DO NOT STOP ON TRACKS ..105 Section RAILROAD STORAGE SPACE SIGNS ..106 Section BICYCLE SHARE THE ROAD ASSEMBLY ..107 III. Studies Section AJR NETWORK STUDY ..111 Section SPEED STUDY ..118 Section CURVE SPEED STUDY ..124 APPENDIX A LIST OF FIGURES AND TABLES ..128 APPENDIX B MUTCD REFERENCES ..131 APPENDIX C LEGAL REFERENCES ..162 Traffic Engineering Manual Policies 6 I.

6 Administrative Policies AUTHORIZATION FOR 2009 MUTCD Traffic Engineering Manual Policies 7 AUTHORIZATION FOR Traffic CONTROL DEVICES Traffic Engineering Manual Policies 8 PHOTO ENFORCEMENT PERMIT POLICY Traffic Engineering Manual Policies 9 Traffic Engineering Manual Policies 10 Traffic Engineering Manual Policies 11 Traffic Engineering Manual Policies 12 Traffic Engineering Manual Policies 13 Traffic Engineering Manual Policies 14 Traffic Engineering Manual Policies 15 Traffic Engineering Manual Policies 16 Traffic Engineering Manual Policies 17 Traffic Engineering Manual Policies 18 Traffic Engineering Manual Policies 19 Traffic Engineering Manual Policies 20 II.

7 Requirements The following sections are Traffic Engineering policies that are set by the Department for use when involving signs and pavement markings. Revisions to these policies will be signed by the Chief Engineer and become effective upon receipt. Non-compliance of these policies requires approval from the correct chain of command. Traffic Engineering Manual Policies 21 Section STUDY OF Traffic Engineering LOCATIONS PURPOSE If a location has been studied within 2 years of the current date, a new study shall be conducted only if there has been a major Traffic generator or Traffic volumes added to the area.

8 DOCUMENTATION FOR APPROVAL All correspondence to local governments on Traffic control changes should include the following verbiage: In accordance with Senate Concurrent Resolution No. 27 of the 2007 Regular Session, the Department will consider requests from the local governing authority if they have concerns regarding any changes to Traffic control with their corporate limits based on the following three requirements: 1. A Traffic Engineering study is conducted by the municipal/parish Traffic engineer and a report is prepared which supports the positions of the governing authority.

9 2. The governing authority of the municipality enacts a local ordinance, which adopts the findings by the local Traffic Engineering report. 3. The District Traffic Engineer for the Department concurs with the findings of the Traffic Engineering report. Reports should be sent in on Intradepartmental letterhead with signature blocks for approval. Traffic Engineering Manual Policies 22 Section Traffic Engineering WAIVERS DEFINITION A waiver is required when an EDSM or another policy requirements are not met. PURPOSE The purpose of this section is to define procedures to get a waiver approved.

10 An intradepartmental memo should state what is being waived, why a waiver is needed and what mitigation will be done. All necessary reports or documentation should be attached to the intradepartmental memo. The intradepartmental memo shall be addressed to the Chief Engineer or the Traffic Engineering Division Administrator depending on who has been designated to approve the specific waiver. There should be a routing slip attached to the memo with the following order of approvals: 1. District Administrator 2. Traffic Engineering Management Administrator 3.