Table 8: Intersection actual and proposed design output.

Performance Measure The Actual Roundabout Differences (%)
- A C (C-A) / A
Travel Speed (Average) km/h 31.3 44.8 43.1
Travel Time (Total) veh-h/h 82 59.4 -27.6
Degree of Saturation 0.989 0.589 -40.4
Effective Intersection Capacity veh/h 3353 5627 67,8
Control Delay (Total) veh-h/h 39.19 10.83 -72.4
Control Delay (Average) sec 42.6 11.8 -72.3
Intersection Level of Service (LOS) LOS D LOS B -
95% Back of Queue - Vehicles (Worst Lane) veh 25.8 4.6 -82.2
Fuel Consumption (Total) L/h 288.8 261.5 -9.5
Carbon Dioxide (Total) kg/h 678.6 614.5 -9.4
Hydrocarbons (Total) kg/h 0.067 0.059 -11.9
Carbon Monoxide (Total) kg/h 0.821 0.78 -5.0
NOx (Total) kg/h 0.223 0.216 -3.1