9 Computer systems comprised of computer hardware and downloadable and recorded computer software for management and maintenance of railway traffic control systems; computer systems comprised of computer hardware and downloadable and recorded computer software for management and maintenance of guideway vehicle traffic control systems; computer systems comprised of computer hardware and downloadable and recorded computer software for management and maintenance of guide rail vehicle traffic control systems; computer systems comprised of computer hardware and downloadable and recorded computer software for management and maintenance of computer systems for civil works and construction works; computer systems comprised of computer hardware and downloadable and recorded computer software for management and maintenance of electrical systems; computer systems comprised of computer hardware and downloadable and recorded computer software for management and maintenance of communication systems; computer programs comprised of computer hardware and downloadable and recorded computer software for management and maintenance of railway traffic control systems; downloadable and recorded computer software programs for management and maintenance of guideway vehicle traffic control systems; downloadable and recorded computer software programs for management and maintenance of guide rail vehicle traffic control systems; downloadable and recorded computer software programs for management and maintenance of computer systems for civil works and construction works; downloadable and recorded computer software programs for management and maintenance of electrical systems; downloadable recorded computer software programs for management and maintenance of communication systems; computer systems comprised of computer hardware and downloadable and recorded computer software for operation management and maintenance of railway vehicles; computer systems comprised of computer hardware and downloadable and recorded computer software for operation management and maintenance of guideway vehicles; computer systems comprised of computer hardware and specify downloadable and recorded computer software for operation management and maintenance of guide rail vehicles; downloadable and recorded computer software programs for operation management and maintenance of railway vehicles; downloadable and recorded computer software programs for operation management and maintenance of guideway vehicles; downloadable and recorded computer software programs for operation management and maintenance of guide rail vehicles; computer systems comprised of computer hardware and downloadable and recorded computer software for operation management and maintenance of construction machines and building machines; computer systems comprised of computer hardware and downloadable and recorded computer software for operation management and maintenance of construction machines and building machines; computer systems comprised of computer hardware and downloadable and recorded computer software for management and maintenance of brake systems for railway vehicles; computer systems comprised of computer hardware and downloadable and recorded computer software for management and maintenance of brake systems for guideway vehicles; computer systems comprised of computer hardware and downloadable and recorded computer software for management and maintenance of brake systems for guide rail vehicles; downloadable and recorded computer software programs for management and maintenance of brake systems for railway vehicles; downloadable and recorded computer software programs for management and maintenance of brake systems for guideway vehicles; downloadable and recorded computer software programs for management and maintenance of brake systems for guide rail vehicles; downloadable and recorded computer software programs for state monitoring of railway vehicles; downloadable and recorded computer software programs for state monitoring of guideway vehicles; downloadable and recorded computer software programs for state monitoring of guide rail vehicles; downloadable and recorded computer software programs for operation monitoring of railway vehicles; downloadable and recorded computer software programs for operation monitoring of guideway vehicles; downloadable and recorded computer software programs for operation monitoring of guide rail vehicles; downloadable and recorded computer software programs for remote monitoring of guideway, guide rail and railway vehicles; Remote monitoring apparatus, namely, video cameras, cameras and electric sensors for monitoring the operating status of guideway, guide rail and railway vehicles; Remote monitoring and control apparatus, namely, video cameras, cameras, electric sensors and power controllers for monitoring the operating status of guideway, guide rail and railway vehicles; downloadable and recorded computer software programs for operating remote monitoring systems; data communication apparatus and instruments, namely, apparatus for transmission of communications for monitoring the operating status of guideway, guide rail and railway vehicles; vehicular radio communication machines and apparatus for monitoring the operating status of guideway, guide rail and railway vehicles; intercommunication apparatus, namely, apparatus for transmission of communication for monitoring the operating status of guideway, guide rail and railway vehicles; power controllers for guideway, guide rail and railway vehicles; electric power supply units for guideway, guide rail and railway vehicles; electrical and electronic control apparatus and instruments being electrical controllers for guideway, guide rail and railway vehicles; control apparatus being electrical controllers for railway vehicles; control apparatus being electrical controllers for guideway vehicles; control apparatus being electrical controllers for guide rail vehicles; computer systems comprised of computer hardware and downloadable and recorded computer software for management and maintenance of railway facilities; computer systems comprised of computer hardware and downloadable and recorded computer software for management and maintenance of guideway facilities being railway facilities; downloadable and recorded computer software programs for management and maintenance of railway facilities; downloadable and recorded computer software programs for management and maintenance of guideway facilities being railway facilities