receiving data from a plurality of devices located at a plurality of traffic intersections in a traffic network, each device comprising at least one sensor configured to obtain data from the corresponding traffic intersection;

using the received data and a traffic model to determine vehicle trajectory data;

using the vehicle trajectory data and an emissions model to obtain corresponding GHG emissions data; and

evaluating the corresponding GHG emissions data to a baseline of GHG emissions using a GHG quantification methodology to determine a GHG reduction that can achieve a carbon offset credit.