Traffic Control ​

 
DOTD uses an integrated, systematic and performance based approach to traffic engineering.  For our intersection control evaulation policy, please see EDSM VI.1.1.2 Intersection Control Evaluation (ICE) Requirements.  

 
The following definitions are provided for clarification purposes: 
 
  • ​​​​​​​​Traffic Signal Upgrade:  Work which involves any one of the following for non-emergency purposes; the installation of a new controller and cabinet, rewiring the entire signal, installing all new poles or changing the layout of the signal.
  • Restricted Crossing U-Turn (RCUT):  Intersection is defined as a non-traditional intersection system that utilizes a combination of one partial median opening and two directional median openings.  This type of intersection is typically the crossing of major and minor arterials where the left turn moves are relatively high.  The openings must be appropriately spaced with one directional u-turn opening or one partial median opening on each side of the partial median opening.  The distance between two of these systems is also critical.  The intersection and u-turns may be unsignalized or signalized, depending on volumes.  
  • Median U-Turn (MUT) Intersection:  Intersection is defined as the use of two or four directional u-turn openings, placed on each side of an intersection, combined with the prohibition of all left turns at the intersection.  This type of intersection is typically the crossing of two major arterials where the through move is heavier than the left turns. All through movements and right turns at the intersection are permitted.  The openings must be appropriately spaced with one directional median opening on each side of the partial median opening.  The distance between two of these treatments is also critical.  The main intersection is typically signalized and the u-turns may be unsignalized or signalized, depending on volumes.   
  • ​Full Access Traffic Signal:  A traffic signal where all approaches are allowed to turn left out and left in.

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Pavement Markings


Signs


Signal Resources

 
  
  
  
  
  
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Photo Enforcement 

 ​​​Traffic Enforcement Systems For Local Governments
 
  
  
  
  
  
A - Traffic Enforcement Systems Policy.pdfA - Traffic Enforcement Systems Policy12/23/2021 2:42 PM12/20/20214669 KB
A1 - Guide.pdfA1 - Guide12/23/2021 2:55 PM12/20/202188 KB
B - Permitting Process Flow Chart.pdfB - Permitting Process Flow Chart12/14/2013 2:34 PM242 KB
C - Potential Permit Location Request.pdfC - Potential Permit Location Request12/14/2013 2:35 PM59 KB
D - Example Engineering  Report.pdfD - Example Engineering Report12/14/2013 2:36 PM2574 KB
E - Previously Attempted Red Light Running Countermeasures Checklist.pdfE - Previously Attempted Red Light Running Countermeasures Checklist12/14/2013 2:37 PM96 KB
F - Making Intersections Safer title sheet.pdfF - Making Intersections Safer title sheet12/14/2013 2:37 PM130 KB
G - Countermeasure to Reduce Speeding.pdfG - Countermeasure to Reduce Speeding3/10/2017 8:33 AM1146 KB

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