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The characterization and accurate measurement of non-exhaust brake emissions address sustainable cities and communities from the United Nations Sustainable Development Goals. Multiple health studies correlate particulate matter (PM) with respiratory illness and the impacts on societies and economies in different ways. Even though the fate of PM from braking and the causality of direct health effects remains elusive, road transport is responsible for generating PM. The braking system has many nuances, making it challenging to establish overall targets for reduction without extensive measurements under controlled laboratory conditions. Some factors influencing PM generation include vehicle running mass, brake size, friction couple design, customer driving modes, and vehicles-in-operation.