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ITS/TMS design resources

The following changes have been made to various MnDOT ITS/TMS design technical resources at mndot.gov/freeway-operations/its.html.

1. ITS/TMS Design Quick Reference Guide – revised Oct. 29, 2026
   • Page 3:
     1. Replaced the COPPER CONDUCTOR CABLE/AMPERAGE CAPACITY section with ELECTRICAL WIRE CHARACTERISTICS, and revised Table 3-1 from the ITS/TMS Design Manual
     2. Circuit breaker sizing: updated explanation
   • Page 4:
     1. Typical branch conductors: updated applicable distances for several cables based on updated tables on pages 6 & 7
     2. Voltage drops: updated preferred % drop to 4% for branch and feeder circuits
   • Pages 5 & 6: updated the max preferred amperage tables for 4% voltage drop, and based on the updated values in Table 3-1
   • Page 7: updated fiber optics schematics snip
   • Page 11:
     1. Mulch material type 9 areas: split out Light Foundation Design E Modified
     2. Detail sheets order: split out CCTV Cabinet Installation from Ramp Control Signal Foundation Installation
2. ITS/TMS Sample Plan - revised Oct. 29, 2026
   • Sheet 12:
     1. Added proposed signal system mounted cameras (notes 54 & 55) to cover that example
     2. Updated various details (see detail sheets section below)
3. Detail sheets
   • TMS sediment & erosion control detail – revised Oct. 26, 2026
     1. Added sidewalks to pole foundation detail
   • Mulch material type 9 installation – revised Oct. 22, 2026
     1. Separated Light Foundation Design E Modified from CCTV Foundation
   • Non-intrusive detection pole installation – revised Oct. 26, 2026
     1. Modified several notes, revised sidewalk placement
   • CCTV cabinet installation – revised Oct. 27, 2026
     1. Updated a few notes for clarity/grammar

If you need an ASL, or a foreign language interpreter, or documents in an alternative format please contact Janet Miller at 651-366-4720 (711 or 1-800-627-3529 for MN Relay). If you need any other reasonable accommodation to participate, please email your request to ADArequest.dot@state.mn.us.