SIDRA INTERSECTION Model for Fuel Consumption and Emissions The vehicle paths (drive cycles) generated by SIDRA INTERSECTION using the four-mode elemental model are very different for different intersection types (signalised, roundabout, sign-controlled), for different signal phasing and signal timing arrangements, and for different congestion levels. Fuel consumption and emissions are calculated by movement class as applicable to Light Vehicles, Heavy Vehicles, Buses, Large Trucks and up to six user-defined classes. Vehicle paths (drive cycles) are defined by the initial and final speeds in...