When to Split a Roadway Section

How to decide when to split a roadway section and what features require a split.

When to Split and When not to Split

Split when...

(Red zig zag represents the split)

• A roadway feature (type) begins or ends - general rule of thumb.
  
  
• An Intersection causes a change in lane identification 
  • 
• A roadway section changes because of a curb cut
  • 
• A roadway section splits off into two separate segments- split at the vertex of the line
  • 
• A one way street begins/ ends
  • 

DON'T Split when...

• Minor sidewalk configuration changes occur
• Minor changes in lane width occur
• Minor changes in lane type happen within a block
• An alleyway or driveway intersects a roadway segment
• A bus pad causes a change in roadway surface type

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