All-way-stop-controlled intersections are unsignalized intersections with "stop" signs at every approach.

CUBE 6.4 version supports both HCM2000 and HCM 2010 modeling of All-way stop controlled intersections. This can be set up using the HCMVersion keyword. The model is described for different cases based on intersection geometry and the arrival patterns at the stop line. The model’s only variable is the number of lanes for each arm. The model can be used to analyze the capacity, delay, queue and LOS of all-way-stop-controlled (AWSC) intersections. The low flow delay is the adjusted saturation headway or the inverse of the capacity for AWSC intersections.

The capacities reported by models of undersaturated all-way-stop- controlled intersections can appear very large. However, the model is very nonlinear and, as the flows are increased, the capacities will decrease.

All-way-stop-controlled intersection keywords

• NUMBEROFLANES - |I| - Number of lanes at an approach to an all-way- stop-controlled intersection. Valid values are 1, 2, or 3.

• HEAVYVEHICLES - |I| - Number of heavy vehicles per approach. Default value is set to 0.

Example

The following example describes an all-way-stop-controlled intersection between a one-lane road and a two-lane road.

Junction Node = 9 Type = AllWayStop Approach1 = 8,
  Approach = 6 NumberOfLanes = 1,
  Approach = 7 NumberOfLanes = 2,
  Approach = 8 NumberOfLanes = 1,
  Approach = 5 NumberOfLanes = 2

References

• Transportation Research Board. Highway Capacity Manual 2000.

• Transportation Research Board. Highway Capacity Manual 2010.