All requests must be submitted via email to TrafficEngineering@la.gov. This includes deliverables, traffic studies, speed studies, plans, permits, scopes, and any other miscellaneous requests.
Traffic Engineering Process and Report
This page defines the requirements and expectations for all parties throughout the Traffic Engineering Study Process. The outline below contains links to examples, forms and guides to illustrate specific parts of the study process. For updates to this content and Traffic Engineering Division announcements, please sign up through
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01. Scope and Man-hour Negotiations (if applicable)
A. Scope (DOTD)
1. Pre-scope Documentation
2. Scope checklist
3. Schedule
B. Man-hour Spreadsheet with Project Schedule (Consultant)
C. Signed Contract (Consultant and DOTD)
D. Notice to Proceed Letter (DOTD)
02. Kick-Off Meeting (if applicable)
A. Agenda - submitted to DOTD one week prior to meeting
B. Possible Attendees:
District Traffic Operations Engineer, Traffic Engineering Management, Consultant, Project Manager, District personnel, Safety section, Environmental section, Road Design section, Bridge Design section, LPA Responsible Charge, local stakeholders and other applicable personnel
C. Required Documents
1. Agenda
2. Sign In Sheet
3. Scope
4. Project Schedule
5. Scope checklist and all pre-scope documents
Deliverable:
Agenda - submitted to DOTD one week prior to meeting
Kickoff Meeting Minutes - submitted to Task Manager within 3 days
03. Initial Data Collection
A. 7 day/24 hour Counts
NOTE: With prior approval, 48 hour counts with classifications may be used
B. Peak Period Determination with chart and explanation
C. Initial Data Collection QA/QC Checklist
Deliverable: (Approval needed to begin Final Collection)
Appendix A – Initial Data Collection
04. Final Data Collection
A. Peak Period Counts
B. Peak Period Observations
C. Growth Rate Determination
D. Speed Study Data (if applicable)
E. Geometric Field Review
F. Travel Time Runs (if applicable)
G. Warrant Analysis (if applicable)
H. Final Data Collection QA/QC Checklist
Deliverable: (Approval needed to begin Existing and No Build Analysis)
Appendix B - Final Data Collection
Chapter 1 of Final Report
05. Existing Safety Analysis
NOTE: Submitted at the same time as Existing and No Build Analysis
A. CATScan Tool
B. Crash Report Documentation
C. Collision Diagram
D. Crash Analysis Summary
E. Existing Safety Analysis QA/QC Checklist
Deliverable: (Approval needed to begin Alternative Analysis)
Appendix C - Existing Safety Analysis
06. Existing and No Build Analysis
NOTE: Before Existing Analysis begins, software shall be approved. Before No Build Analysis begins, a design year volume map shall be submitted and approved.
Deliverable: (Approval needed to begin Alternative Analysis)
Appendix D - Existing and No Build Analysis (include electronic files of analyses)
Tier 1 Analysis (presented at Existing and No Build Results Meeting)
Chapter 2
07. Existing and No Build Results Meeting
NOTE: Results of the ENB Analysis determine if Tier 2 Analysis is needed, so feasibility studies and some findings may not move forward. Results may be shared via a phone call if a meeting is unnecessary.
A. Possible Attendees:
District Traffic Operations Engineer, Traffic Engineering Management, Consultant, Project Manager, District personnel, Safety section, Environmental section, Road Design section, Bridge Design section, LPA Responsible Charge, local stakeholders and other applicable personnel
B. Content:
Present and discuss Chapter 2: Existing and No Build, including any safety or capacity issues for the study area
Present and discuss high-level alternatives that address issues found in Chapter 2 (Tier 1 results) Discuss tool selection for Alternative Analysis
Deliverable: (Approval needed to begin Preliminary Tier 2 Alternative Analysis)
Meeting Minutes submitted to Task Manager within 3 days
08. Preliminary Tier 2 Analysis (if applicable)
A. High level analysis
B. Sketch layouts of the potential alternatives
C. Redistributed volumes
D. Meeting (Optional)
Possible Attendees:
District Traffic Operations Engineer, Traffic Engineering Management, Consultant, Project Manager, District personnel, Safety section, Environmental section, Road Design section, Bridge Design section, LPA Responsible Charge, local stakeholders and other applicable personnel
2. Content:
a. Present and discuss single line sketch layouts of the potential alternatives with redistributed volumes and high-level analysis
b. Recommend weight factors and ratings scale for the Alternative Comparative Evaluation Matrix
c. Discuss presentation of results
Deliverable: (Approval needed to begin Final Alternative Analysis)
Meeting Minutes submitted to Task Manager within 3 days
High Level Sketches and Analysis
Redistributed Volumes Map
Recommended Alternative Comparative Evaluation Matrix
09. Final Alternative Analysis
A. Tier 2 Analysis
1. If progressing to Tier 3, coordinate Tier 3 Analysis Meeting
2. When coordinating with Environmental, may use that matrix if it meets requirements
B. Tier 3 Analysis (if applicable)
C. Access Justification Report (AJR) (if applicable)
1. Requires the AJR Consultant Checklist
2. Must adhere to FHWA Policy on Changes in Access to the Interstate System and address FHWA Policy Points
D. Alternative Analysis QA/QC Checklist
Deliverable: (Approval needed to begin Final Report)
Appendix E: Alternative Analysis
Introduction of Final Report
Chapter 3 of Final Report
Executive Summary
10. Final Alternatives Analysis Meeting
A. Possible Attendees:
District Traffic Operations Engineer, Traffic Engineering Management, Consultant, Project Manager, District personnel, Safety section, Environmental section, Road Design section, Bridge Design section, LPA Responsible Charge, local stakeholders and other applicable personnel
B. Content: Present and discuss Chapter 3 Final Alternatives
Deliverable: (Approval needed to begin Final Report)
Meeting Minutes submitted to Task Manager within 3 days
11. Final Report
Deliverable:
1. Sealed Report (Draft must be approved before final submission)
2. Minimum 2 Hard Copies
3. Minimum 2 electronic copies