“…Karner & Niemeier (2013) suggest that the use of a combination of indicators in one index to capture more than a single SES variable does not always accurately reflect a group's travel behavior since composite groups may not congregate spatially; thus, these indicators may reflect some combination of the group's travel behavior combined with other residents of the areal unit used for analysis. For guidance on transit equity as a component of social exclusion see Bocarejo & Oviedo, 2012;Burchardt, Le Grand, & Piachaud, 1999;Chen, & Akar, 2016;Currie & Delbosc, 2010;Kenyon, Lyons, & Rafferty, 2002; van Wee & Geurs, 2011;Witter, 2010. Since metropolitan areas are increasingly investing in public transportation systems, it is critical to address both obstacles and opportunities that planning for equity is likely to face when intersecting with politics (Bullard & Johnson, 1997;Bullard, Johnson, & Torres, 2004;Grengs, 2002;Whitt, 2014). Transit investments can be evaluated from many perspectives, e.g., user costs and benefits (e.g., accessibility, fares), service quality (e.g., congestion), external impacts (e.g., pollution, noise), economic impacts (e.g., economic opportunities, employment), and regulation and enforcement (e.g., traffic regulation) (Litman, 2016).…”