; and (2) in subsection (l)(4)— (A) in subparagraph (B) by striking ; or and inserting a semicolon; (B) in subparagraph (C) by striking the period and inserting ; or ; and (C) by adding at the end the following: (D) from grant proceeds distributed under section 103 of the Housing and Community Development Act of 1974 ( 42 U.S.C. 5303 ) or section 201 of the Public Works and Economic Development Act of 1965 ( 42 U.S.C. 3141 ) provided that— (i) such funds are used in conjunction with the planning or development of affordable housing; and (ii) such affordable housing is located within one-half of a mile of a new station. . H Innovation 2801. Mobility innovation sandbox program Section 5312(d) of title 49, United States Code, is amended by adding at the end the following: (3) Mobility innovation sandbox program The Secretary may make funding available under this subsection to carry out research on mobility on demand and mobility as a service activities eligible under section 5316. . 2802. Transit bus operator compartment redesign program Section 5312(d) of title 49, United States Code, is further amended by adding at the end the following: (4) Transit bus operator compartment redesign program (A) In general The Secretary may make funding available under this subsection to carry out research on redesigning transit bus operator compartments to improve safety, operational efficiency, and passenger accessibility. (B) Objectives Research objectives under this paragraph shall include— (i) increasing bus operator safety from assaults; (ii) optimizing operator visibility and reducing operator distractions to improve safety of bus passengers, pedestrians, bicyclists, and other roadway users; (iii) expanding passenger accessibility for positive interactions between operators and passengers, including assisting passengers in need of special assistance; (iv) accommodating compliance for passenger boarding, alighting, and securement with the Americans with Disabilities Act of 1990 ( 42 U.S.C. 12101 et seq.)