Measuring Progress toward Transportation GHG Goals

The State of California seeks to induce per capita reductions in regional greenhouse gas (GHG) emissions from transportation by setting modeling targets for regional transportation and land use plans.  Key to the success of SB 375 are accurate, valid models which are capable of forecasting the effects of transportation and land use policies on future greenhouse gas emissions.  Current models are not capable of meeting the regulatory requirements of SB 375.  In this White Paper, I discuss the models, evaluation methods, and data required to improve California’s ability to successfully implement its SB 375 regional greenhouse gas reduction policy.