; and (4) $1,000,000 shall be shall be available for the demonstration and deployment of innovative mobility solutions as authorized under section 5312 of title 49, United States Code: Provided , that such amounts shall be available for competitive grants or cooperative agreements for the development of software to facilitate the provision of demand-response public transportation service that dispatches public transportation fleet vehicles through riders mobile devices or other advanced means: Provided further , That the Secretary shall evaluate the potential for software developed with grants or cooperative agreements to be shared for use by public transportation agencies: Provided further , That the Federal share of the costs for which any grant is made under this heading shall be, at the option of the recipient, up to 100 percent: Provided further , That amounts made available under this heading shall be derived from the general fund and shall not be subject to any limitation on obligation for transit programs set forth in any Act. Technical assistance and training For necessary expenses to carry out section 5314 of title 49, United States Code, $7,000,000, to remain available until September 30, 2022: Provided , That the assistance provided under this heading does not duplicate the activities of section 5311(b) or section 5312 of title 49, United States Code. Capital investment grants For necessary expenses to carry out fixed guideway capital investment grants under section 5309 of title 49, United States Code, and section 3005(b) of the Fixing America's Surface Transportation Act ( 49 U.S.C. 5309 note), $2,175,000,000 (increased by $2,000,000), to remain available until September 30, 2024: Provided , That of the amounts made available under this heading, $1,848,000,000 shall be allocated by December 31, 2022: Provided further , That of the amounts made available under this heading, $1,250,000,000 shall be available for projects authorized under section 5309(d) of title 49, United States Code, $525,000,000