The purpose of the Honolulu Rail Transit Project is to provide high-capacity rapid transit in the highly congested east-west transportation corridor between Kapolei and University of Hawai‘i at Mānoa (UH Mānoa), as specified in the O‘ahu Regional Transportation Plan (ORTP) (O‘ahu MPO 2007). The Project is intended to provide faster, more reliable public transportation service in the study corridor, where people of limited income and an aging population live. This can be achieved with buses operating in congested mixed-flow traffic to serve rapidly developing areas. The Project will also provide additional transit capacity, an alternative to private automobile travel, and improve transit links within the corridor.