During 2015-2016, a project with Atlanta Regional Commission (ARC) resulted in a framework for quantifying how “available and attractive” transportation options are (and how well the options work together as a network).  This was created to make qualitative improvements more quantitative.  Measurement of resulting “societal impacts” (reduced congestion, improved air quality, increased access to jobs, etc.) was also included.  The goal was to set up a system for non-single occupant vehicle (non-SOV) transport modes such as public transit, walking, cycling, curb-to-curb service, carpool/vanpool, and taxis/transportation network companies.  Instead of measuring the impact of public transit impacts separately, moving towards measuring impact of all non-SOV modes demonstrates how the options are knitted together in reality.  A person who avails of non-SOV perhaps walks sometimes, bikes occasionally, takes transit frequently, and will use some in combination (walk to transit, taxi for a portion of the trip to save costs).  How the non-SOV system is designed and constructed should enable the system of options to become stronger together.   *All images property of ARC.