Traffic Engineering

Signal publications

Manuals, handbooks, guidelines

Signal timing

• Traffic Signal Timing and Coordination Manual 2025 (PDF)

Signal design

• Signal Design Manual 2024 (PDF)

Signals general

• Traffic Signals 101 Course Manual (PDF)
• Traffic Engineering Manual (see chapter 9)
• Signal & Lighting Certification Field Guide

Reports

• Pedestrian Activated Solar Warning Flasher Test (PDF)
• Dark Signals - A Report on Laws Concerning Dark, Malfunctioning or Inoperative Traffic Signals (PDF)
• Traffic Signal Green Light Emitting Diode Study (PDF)
• Driver’s Understanding of Protected/Permitted Left-Turn Signal Displays - University of Massachusetts (PDF)
• Evaluation of Traffic Signal Displays for Protected/Permissive Left-Turn Control (PDF)
• Variable Mode Left Turn Display (Shared Lane) (PDF)

Documents, checklists, worksheets

Dark Signals

• Guidelines for Traffic Control Signal in Dark Mode (Word)

Rectangular Rapid Flashing Beacon (RRFB)

• Rectangular Rapid Flashing Beacon (RRFB) Design Guide (PDF)

Flashing yellow arrow

• Flashing Yellow Arrow Operations Worksheet Tool (Excel)
  • Instructional video
  • Development of Guidelines for Permitted Left-Turn Phasing Using Flashing Yellow Arrows (PDF)
• Flashing Yellow Arrow (FYA) Retrofit Assessment Form (Excel)

Traffic signal design

• Agreement Checklist (Word)
• Signal & Lighting Agreement & Cost Participation - Responsibilities Worksheet (Word)
• Traffic Signal Plan Checklist (Word)
• Turn On Letter (Word)
• Signal Clearance Form (Word)

Railroad preemption

• Railroad Preemption Timing and Annual Inspection Form (Excel)
• Railroad Preemption Timing Form - Instructions (PDF)
• Highway-Rail Crossing Warning Systems and Traffic Signals Manual (PDF)

Intersection control evaluation

• Minnesota Strategic Highway Safety Plan - MnDOT (state.mn.us)

Field documents

• Accessible Pedestrian Push Button Intersection Programming Sheet (Polara) (Excel)
• Accessible Pedestrian Push Button Intersection Programming Sheet (Campbell) (Excel)
• Contractor Certification of Disposal (PDF)
• Final Inspection Form (Excel)
• Loop Detector Test Report (PDF)
• Lighting, Signals & Traffic Recorder, Materials Project Inspection Form (Excel)

Standard specifications for construction

• Standard specifications for construction

House/Over size vehicle moving

• State MnDOT District Contacts (Word)
• Certified Signal Contractors (Word)