SLIDE 114 UNITS Dr Judith Wang Outline Background
VKT statistics Journey-to-Work statistics Transport costs in Auckland PT patronage in Auckland
Problem diagnosis Models in practice
Auckland regional models Freight models VEPM
Conclusions Knowledge gaps References
Emission levels and energy consumption as a function of average speed
CO2 Emission & Fuel Consumption
Source: ARC
40 60 80 100 200 250 300 350 400 CO2 Emission vs Speed − LV Speed (km/hr) CO2 Emission (g/km/veh)
40 60 80 100 600 800 1000 1200 1400 CO2 Emission vs Speed − HV Speed (km/hr) CO2 Emission (g/km/veh)
40 60 80 100 8 10 12 14 16 Fuel vs Speed − LV Speed (km/hr) Fuel consumption
40 60 80 100 25 30 35 40 45 50 Fuel vs Speed − HV Speed (km/hr) Fuel consumption
VOC & NOx Emissions
Source: ARC
40 60 80 100 0.2 0.4 0.6 0.8 VOC Emission vs Speed − LV Speed (km/hr) VOC Emission (g/km/veh)
40 60 80 100 0.5 1.0 1.5 2.0 2.5 3.0 3.5 VOC Emission vs Speed − HV Speed (km/hr) VOC Emission (g/km/veh)
40 60 80 100 0.8 0.9 1.0 1.1 1.2 NOx vs Speed − LV Speed (km/hr) NOx consumption
40 60 80 100 3 4 5 6 7 8 NOx vs Speed − HV Speed (km/hr) NOx consumption