US 35 Projects

Superstreet Intersection U.S. 35 at Factory Road and Orchard Lane

What is a Superstreet?

• It is a non-traditional signalized intersection that can provide more capacity than a traditional traffic signal.
• It does not allow side street traffic to turn left or go straight through the main intersection – these movements turn right and do a U-turn at a nearby signal to get to their desired path.

Superstreet Advantages

• It would provide considerable improvement in operations until the interchanges can be funded/built.
  1. Total Cost for a Bridge over U.S. 35- $93.6 million
     • 80% State $75.88 million
     • 20% Local $18.72 million
  2. Superstreet Cost-$15 million
• Higher Capacity - Breaks movements of a traditional 8 phase intersection into several smaller 2 phase intersections.  This allows more GREEN time to be directed to heavy movements (higher capacity compared to a traditional signal).
• The signals can be program or operated during major local events
• Provides much better coordination (both directions independent) which should reduce the amount of times vehicles stop going through the corridor.
• Proposed Superstreet signal can process 836 more vehicles per hour on U.S. 35 compared to the existing signal/timing
• Less chance of severe angle crashes
• Safety– fewer conflict points.
  1. Current Conventional Intersection 32 conflict points
  2. Superstreet Intersection 14 conflict points