  This letter proposes a routing framework in mixed transportation systems for
improving mobility equity. We present a strategic routing game that governs
interactions between compliant and noncompliant vehicles, where noncompliant
vehicles are modeled with cognitive hierarchy theory. Then, we introduce a
mobility equity metric (MEM) to quantify the accessibility and fairness in the
transportation network. We integrate the MEM into the routing framework to
optimize it with adjustable weights for different transportation modes. The
proposed approach bridges the gap between technological advancements and
societal goals in mixed transportation systems to enhance efficiency and
equity. We provide numerical examples and analysis of the results.
