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{"sheet":"Guidance","index":0,"n_rows":20,"n_cols":9,"rows_kept":20,"cut":false,"hidden":false,"merged":[[0,0,0,8],[2,0,2,8],[4,0,4,8],[2,10,2,16]]}
["Guidance for Safety Improvements for Preservation Projects"]
[]
["In general, PRR projects contain inherent low cost safety improvements, such as installing new pavement markings, replacing deficient signs and improving pavement friction. In addition, other safety improvements can be applied in the projects either by contract forces or District forces. If required to be performed by the contractor, items must be included in the design plans. All safety improvements should adhere to existing EDSMs, Department policies and the Manual on Uniform Traffic Control Devices (MUTCD)."]
[]
["For all applicable projects referred to on the Guidance for Preservation/Rehabilitation/ Replacement (PRR) Projects as \"Required\" for baseline countermeasures, a baseline of safety improvements is required to be considered regardless of the project limit's crash history. For each PRR project, a Safety Assessment Process Checklist must be completed based on the latest three years (five years for non-motorized users) of crash data to identify over-represented crash types. If any intersection or roadway segment identified on the HPSI list, Pedestrian Network Screening or a safety plan contains an over-represented crash type, over-represented countermeasures must be considered. When appropriate, a Road Safety Asssessment (RSA)  may be required to identify potential safety countermeasures or need for further study. Recommended improvements identified through the RSA process should be included in the project when feasible. "]
[]
["Resources:"]
["For additional information, refer to one of the following documents:"]
["Guidance for Preservation/Rehabilitation/Replacement (PRR) Projects"]
["Road Safety Assessment Official Procedure for LA DOTD"]
["Mitigation Strategies for Design Exceptions"]
["Low-Cost Treatments for Horizontal Curve Safety"]
["Good Practices: Incorporating Safety into Resurfacing and Restoration Projects"]
["Low-Cost Safety Enhancements for Stop-Controlled and Signalized Intersections"]
["Guide for Pavement Friction"]
["Highway Safety Manual"]
["LADOTD Traffic Signal Design Manual"]
["Manual on Uniform Traffic Control Devices (MUTCD)"]
["Crash Data Analysis Guidelines"]
[null,null,null,null,null,null,null,null,"Revised: January 10, 2024"]

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["Safety Assessment Process Checklist for Preservation Projects"]
["(to be filled out for each control section)"]
["State Project Number:",null,"Control Section/LRS ID:"]
["State Project Name:",null,"Route: "]
["Log Mile From:",null,"To Log Mile: "]
[]
[null,"Type of Work (check one)"]
[null,"Replacement and Major Rehabilitaiton","Minor Rehabilitation","Preservation"]
[]
[]
["Safety Performance Evaluation (To be filled out by District personnel)"]
["Roadway Segments"]
["Is any portion of the roadway within the project limits included in the latest High Potential for Safety Improvement (HPSI) List or LOSS 4 on the Pedestrian Network Screening List?* "]
[]
[]
["If yes, what are the over-represented crash types and corresponding countermeasures to be considered?**"]
["Crash Types","Countermeasures"]
[]
[]
[]
["Intersections"]
["Is any intersection within the projects limits or adjacent to the beginning or end of the project limits included in the current HPSI Intersection List?*"]
[]
[]
["If yes, what are the over-represented crash types and corresponding countermeasures to be considered?**"]
["Crash Types","Countermeasures"]
[]
[]
[]
["Safety Plans (Ex. Roadway Departure Plan, District Safety Investment Plan…)"]
["Is any portion of the roadway within the project limits included in an existing safety plan?"]
[]
["If yes, what are the countermeasures to be considered?**"]
["Crash Types","Countermeasures"]
[]
[]
[]
["* The High PSI Lists and Pedestrian Network Screening List are available through the crash database. Please notify the Highway Safety Section if access is needed."]
["** Use the Highway Safety Section's Crash Analysis tools to determine over-representation. Please notify the Highway Safety Section if access is needed. To access the Highway Safety Section's Crash Data Analysis Guidelines, see "]
[]
["Crash Data Analysis Guidelines"]
["Road Safety Assessment (RSA) Requirement (To be determined by the District Traffic Operations Engineer)"]
["Based on the Safety Performance Evaluation, is an RSA recommended to further evaluate feasibility of safety improvements?      Guidance: An RSA should be recommended if non-motorized crashes are over-represented or if the DTOE determines it is needed. When not recommending an RSA with a \"Yes\" answer to any of the above questions, a written justification must be provided by the DTOE."]
[]
[]
[]
[]
[]
["If no, provide a written justification below. If recommending further study or additional follow-up project, please follow up with the Highway Safety Section on next steps."]
[]
[]
[]
[]
[]
[]
["Date: ________________________________________",null,"Signature: ________________________________________"]
["Reference: EDSM I.1.1.11",null,null,"Revised: January 10, 2024"]
["This document, and the information contained herein, is prepared for the purpose of identifying, evaluating, and planning safety improvements on public roads, which may be implemented utilizing federal aid highway funds. This information shall not be subject to discovery or admitted into evidence in a Federal or State court pursuant to 23 U.S.C 407."]

{"sheet":"Countermeasures","index":2,"n_rows":118,"n_cols":3,"rows_kept":118,"cut":false,"hidden":false,"merged":[[90,0,101,0],[103,0,111,0],[113,0,116,2],[58,0,68,0],[70,0,88,0],[1,0,40,0],[0,0,0,2],[42,0,50,0],[52,0,56,0]]}
["Place a check in the box for countermeasures included in this project."]
["Standard Roadway Section",null,"Baseline:"]
[null,null,"Remove sight obstructions for all users (i.e. foliage)"]
[null,null,"Replace mailboxes and supports with crashworthy elements"]
[null,null,"Replace mailbox aprons"]
[null,null,"Install or upgrade curb ramps or blended transitions"]
[null,null,"Re-evaluate and replace signing (including both breakaway and fixed overhead signs) (Deficiencies could include: damange, corrosion, non-reflective sign panels, non-working or damaged breakaway posts, or improper slopes leading up to a breakaway sign)"]
[null,null,"Re-evaluate and replace striping and pavement markers, including no passing zones and bridges"]
[null,null,"Install contrast striping on concrete"]
[null,null,"Replace striping with 6\" striping"]
[null,null,"Incorporate shoulder wedge in accordance with DOTD policy (minor widening of crown and minor ditch relocation is acceptable)"]
[null,null,"Incorporate rumble strips in accordance with DOTD policy (edgeline and/or centerline)"]
[null,null,"Delineate lone obstacles with reflective tape or object markers (markers may be strapped to objects)"]
[null,null,"Re-evaluate fixed objects (i.e. bridge columns, overhead signs, ITS poles, high mast lighting, etc.) for proper protection within the clear zone. Protective measures could include proper length guardrail and end treatments or rigid concrete barriers (may be needed due to deflection issues, ex. next to a bridge column)"]
[null,null,"Relocate single standing obstacles outside the clearzone"]
[null,null,"Improve shoulders and/or upgrade shoulder surface, according to guidelines"]
[null,null,"Extend cross drains and/or provide end treatments"]
[null,null,"Round ditches if no environmental issues exist"]
[null,null,"Delineate narrow bridges with signs, object markers, delineators and/or pavement markings per PM-01 and MUTCD. (A narrow bridge is one not meeting the minimum widths in the design guidelines or as defined in the MUTCD.)"]
[null,null,"Delineate guardrail with reflective markings and signs as per standard plan (vertical striping and/or identation reflectors or post top reflectors on the guard rail may be used)"]
[null,null,"Re-evaluate and replace guardrail to meet current DOTD standards (Deficiencies could include improper rail type, height or shape, does not meet current DOTD AASHTO MASH standards, improper bridge rail transition to guardral connection at bridge end)"]
[null,null,"Re-evaluate and replace guardrail to meet current DOTD standards. (Deficiencies include improper rail type, improper shape, improper height or length, condition of rail and posts, type of end treatment, grading in front of guard rail and bridge attachments, required approach slopes in front of guardrail, does not meet current DOTD AASHTO MASH standards, and improper bridge rail transition to guardrail connection at bridge end)"]
[null,null,"Re-evaluate and replace bridge expansion and contraction joints. (Deficiencies could include not meeting current DOTD standards, joint protruding from deck surface, worn, needs repairs or replacement based on existing condition, joint is full of debris and does not allow for movement)"]
[null,null,"Over-Represented:"]
[null,null,"Provide advance warning of an intersection or  driveway "]
[null,null,"Install pedestrian high visibility crossing pavement markings and signs"]
[null,null,"Install/improve sidewalks, bicycle lanes or shared use paths"]
[null,null,"Installed raised cross walk"]
[null,null,"Install Rectangular Rapid Flashing Beacon "]
[null,null,"Install Pedestrian Hybrid Beacon"]
[null,null,"Install/improve paved shoulder to a minimum 4' width for pedestrian use (Rural Classification)"]
[null,null,"Upgrade shared use path to separate sidewalks and bicycle facilities"]
[null,null,"Widen lane and/or pave full shoulder width"]
[null,null,"Flatten slopes/ditches"]
[null,null,"Relocate drainage facilities"]
[null,null,"Install raised median"]
[null,null,"Install cable median barrier per guidelines (controlled access, higher speed, rural, median < 100')"]
[null,null,"Install road diet (requires approval from Traffic Engineering)"]
[null,null,"Install median refuge island"]
[null,null,"Evaluate reducing the speed limit"]
[null,null,"Install speed management countermeasures (i.e. narrow lanes, curb & gutter)"]
[]
["Horizontal and Vertical Curves",null,"Baseline:"]
[null,null,"Re-evaluate curve advisory speed according to current DOTD policy"]
[null,null,"Delineate curves with appropriate horizontal alignment signs based on the difference between the advisory speed and the posted speed per MUTCD "]
[null,null,"Remove obstacles or delineate areas with advance signing when Stopping Sight Distance (SSD) < required for posted speed minus 20 mph"]
[null,null,"Consider desirable superelevation values where existing foreslope rates can be maintained within existing right-of-way. (Rural Classifications) "]
[null,null,"Over-Represented:"]
[null,null,"Minor adjustments to curve alignments are permissible"]
[null,null,"Add raised pavement markers inside edge line where needed"]
[null,null,"Evaluate and make necessary changes to median openings (This may include closing median openings or changing the design of the opening to not allow left outs or adding left turn lanes)"]
[]
["Wet Crashes",null,"Over-Represented:"]
[null,null,"Improve skid-resistance (i.e. friction)"]
[null,null,"Install high-friction surface treatment (curves, spots or intersection)"]
[null,null,"Improve drainage (example: improve roadway cross-slope, improve pipe size, cross drain)"]
[null,null,"Improve pavement and bridge deck (due to smooth worn deck surface with no friction) condition"]
[]
["All Intersections",null,"Baseline:"]
[null,null,"Apply state standand sign treatment at state-state intersections"]
[null,null,"Install advance warning signs"]
[null,null,"Review geometry and delineation of existing islands and adjust"]
[null,null,"Re-evaluate, replace or enhance crosswalk striping"]
[null,null,"Over-Represented:"]
[null,null,"Install enhanced intersection warning signs (i.e. \"Signal Ahead\", \"Intersection Ahead\", \"STOP Ahead\")"]
[null,null,"Install advanced intersection \"Street Name\" signs"]
[null,null,"Install advanced overhead or ground mounted lane use signing on multilane approaches"]
[null,null,"Provide adequate (current standard) tapers to turn-lanes"]
[null,null,"Install off-set left turn lanes"]
[]
["Signalized Intersections",null,"Baseline:"]
[null,null,"Install backplates on all signal heads on mast arms"]
[null,null,"Install 12\" LED lenses on all signal heads"]
[null,null,"Over-Represented:"]
[null,null,"Add illuminated retroreflectorized signs"]
[null,null,"Perform traffic counts, re-analyze and implement revised signal timing"]
[null,null,"Adjust traffic signal yellow change interval and all red interval timing in accordance with the LA DOTD Traffic Signal Manual"]
[null,null,"Provide all-red clearance interval"]
[null,null,"Change of permitted and protected left-turn phases to protected-only"]
[null,null,"Add \"WALK\" phase to signal"]
[null,null,"Install pedestrian countdown signals"]
[null,null,"Install pedestrian detectors and signal heads per policy"]
[null,null,"Install a minimum of one traffic signal head per approach lane"]
[null,null,"Install supplemental signal heads where normally placed signal heads may be difficult to identify due to  sign distance limitations, horizontal curvature, or other obstructions, or exceptionally wide intersections where a near side signal is needed"]
[null,null,"Relocate signals to far side of intersection"]
[null,null,"Install overhead signals"]
[null,null,"Install Leading Pedestrian Interval"]
[null,null,"Advance detection control systems at isolated high-speed signalized intersections that had red-light running angle crashes"]
[null,null,"Signal coordination countermeasures on high-volume arterials with closely spaced traffic signals and frequent mainline stopping due to poor or no signal coordination"]
[]
["Unsignalized Intersections",null,"Baseline:"]
[null,null,"Replace or relocate stop signs to meet current DOTD policy"]
[null,null,"Replace or relocate existing stop bars to meet current DOTD policy"]
[null,null,"Over-Represented:"]
[null,null,"Install doubled up (left and right) oversized STOP signs"]
[null,null,"Install double arrow warning signs or dead end installation signs  (at T-intersections)"]
[null,null,"Install flashing beacons to supplement advance intersection warning signs and stop signs"]
[null,null,"Install reflective strips on sign posts"]
[null,null,"Install transverse rumble strips across the stop approach lanes or through lanes"]
[null,null,"Remove parking that limits sight distance"]
[null,null,"Installation of a minimum 6' wide raised splitter island on stop approach (which may require pavement widening)"]
[null,null,"Investigate installing signal/roundabout"]
[]
["Access Management",null,"Baseline:"]
[null,null,"Improve driveway widths and radii to meet current standards and context of the roadway"]
[null,null,"Over-Represented:"]
[null,null,"Install raised median and/or back to back curb near intersections"]
[null,null,"Install channeling islands to define driveway locations"]
[null,null,"Consolidate adjacent driveways"]
[null,null,"Move driveways to side street"]
[null,null,"Install/lengthen left/right turn lanes"]
[null,null,"Provide acceleration/deceleration lanes on higher speed roadways"]
[]
["This document, and the information contained herein, is prepared for the purpose of identifying, evaluating, and planning safety improvements on public roads, which may be implemented utilizing federal aid highway funds. This information shall not be subject to discovery or admitted into evidence in a Federal or State court pursuant to 23 U.S.C 407."]
[]
[]
[]
[null,null,"Revised: January 10, 2024"]