Bang, Dave, Tzortzoglou and Malikopoulos propose mobility equity as a measurable property of intelligent transportation systems, rather than a rhetorical supplement to efficiency. The iconic idea is the Mobility Equity Metric, which combines service accessibility and transportation cost to quantify how fairly mobility capacity is distributed across a network. The theoretical contribution is to insert equity into the design logic of emerging multi-modal systems, where connected vehicles, on-demand mobility and shared transport might otherwise optimise travel time while intensifying spatial inequality. Methodologically, the paper defines a mobility index derived from publicly available isochrone and point-of-interest data, then uses a Gini coefficient to evaluate distribution and a system planner to adjust routing toward more socially optimal outcomes. Its bridge to the wider field is the translation of transport justice into control systems, algorithmic planning and multi-modal network optimisation, showing how fairness can be formalised without disappearing into purely ethical abstraction.