SIDRA Model

What kind of road traffic facilities can SIDRA INTERSECTION model?

Updated 2 Mar 2025 · 1 min read

On this page
  1. Signalised intersections and networks
  2. Roundabouts
  3. Sign control
  4. Pedestrian crossings
  5. Public transport and bicycle facilities
  6. Staggered T intersections
  7. Interchanges
  8. Alternative intersections and interchanges

Any Network with up to 50 Sites to model mixed types of intersections, crossings and interchanges listed below.

Signalised intersections and networks

  • signalised intersections (fixed-time / pretimed and actuated)
  • large signalised and unsignalised intersections with wide median storage areas
  • paired (compound) intersections and interchanges operating under a single controller (Common Control Group)
  • Network timing for signal coordination
  • (Network Cycle Time, Green Splits, Offsets)
  • coordinated signalised intersections with sign-controlled intersections between them

Roundabouts

  • unsignalised roundabouts
  • roundabouts with metering signals
  • paired (compound) roundabouts
  • roundabout corridors
  • fully-signalised roundabouts (including signalised circulating roads)

Sign control

  • two-way stop sign control
  • two-way give-way / yield sign control
  • staged crossings at sign-controlled intersections
  • (including "seagull" T intersections)
  • all-way stop sign control

Pedestrian crossings

  • signalised crossings at intersections (full crossings and staged crossings)
  • unsignalised (zebra) crossings on slip / bypass lanes
  • midblock signalised crossings
  • midblock unsignalised (zebra) crossings

Public transport and bicycle facilities

  • Bus lanes
  • light-rail / tram lanes
  • bicycle lanes and
  • bus, light-rail / tram and bicycle signals

Staggered T intersections

  • signalised
  • roundabout
  • sign control

Interchanges

  • single point interchanges (signalised)
  • signalised diamond interchanges
  • double roundabout interchanges

Alternative intersections and interchanges

  • diverging diamond interchanges
  • divergabout interchange
  • continuous flow intersections
  • restricted crossing U turns
  • numerous variations and other types