SCOOT is the World's Leading Adaptive Traffic Control System

Western Systems Partner - Siemens

SCOOT / Stratos Outstation

SCOOT is a dynamic, on-line, real-time method of signal control that continuously measures traffic demand on all approaches to intersections in a network and optimizes the signal timings at each intersection to minimize delay and stops. Timing changes are small, to avoid major disruption to traffic flows, and frequent, to allow rapid response to changing traffic conditions. The Siemens Stratos Outstation is a powerful new platform for use with traditional SCOOT Urban Traffic Control systems. Using the latest ARM processor technology, this small, compact unit enables deployment of SCOOT UTC in regions with non-Siemens NEMA TS1 or TS2 Type 2 traffic controllers.

  • Fully responsive to varying traffic flow conditions, i.e., sporting events and incidents.
  • Suitable for implementation on all types of urban roads, grids, corridors, and arteries.
  • Easy-to-use window style graphical user interfaces.
  • Can be added to existing Urban or Freeway Traffic Management Systems or provided as part of a complete traffic management system.
  • The Stratos Outstation has a fully web-based user interface.


  • SCOOT, which is an acronym for Split Cycle and Offset Optimization Technique, is a dynamic, on-line, real-time method of signal control.
  • Optimization of the network is achieved using small, regular changes designed to avoid major disturbance of traffic flow.
  • Cycle Split and Offset are all optimized.
  • Performance indexes (stops and delays) are used to measure effectiveness similar to TRANSYT.
  • Update your signal timing plans every 3 seconds.
  • A proven strategy for ‘Hot Spot’ Traffic Control that can be implemented on a selected basis. SCOOT uses a flexible coordination plan that will expand or contract to match the latest traffic conditions.
  • SCOOT makes an ideal complement to standard Time of Day and Traffic Responsive based traffic control.
  • The Stratos Outstation has a future-proof platform – easily updatable to support new SCOOT functionality.
  • The Stratos Outstation is capable of full implementation of UG405.
  • The Stratos Outstation also has a wide range of NEMA controller and detection technology compatibility.
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