| Subject | English | Spanish |
| transp. | Action Plan for the Deployment of Intelligent Transport Systems in Europe | Plan de acción para el despliegue de sistemas de transporte inteligentes |
| transp. | Advisory Committee on guided transport systems | Comité consultivo de transportes asistidos |
| IT | beam transport system | sistema de transporte de haces |
| transp., environ. | Clean Transport Systems initiative | iniciativa estratégica sobre sistemas de transporte limpios |
| law, transp., environ. | Committee for implementation of the regulation on the granting of Community financial assistance to improve the environmental performance of the freight transport system Marco Polo Programme | Comité de aplicación del reglamento relativo a la concesión de ayuda financiera comunitaria para mejorar el impacto medioambiental del sistema de transporte de mercancías programa Marco Polo |
| agric. | forest transport system | red de saca forestal |
| gen. | heat transport system | sistema de transferencia de calor |
| commun., IT | integrated transport system | sistema de transporte integrado |
| econ. | intelligent transport system | sistema de transporte inteligente |
| tech. | Inter-American Military Air Transport System | sistema interamericano de transporte aéreo militar |
| tech. | Inter-American Military Air Transport System | Correo Aéreo Militar Interamericano (CAMI) |
| gen. | managing urban transport systems | gestión de los sistemas de transporte urbano |
| transp. | multimodal transport system | sistema de transportes multimodal |
| transp. | multi-modal transport system | sistema de transportes multimodal |
| transp. | multi-mode transport system | sistema de transportes multimodal |
| transp. | public transport system | sistema de transporte público |
| tech. | sample transport system | sistema de transporte de muestras |
| industr., construct., el. | tape transport system | sistema de arrastre de la cinta magnética |
| industr., construct., el. | tape transport system | sistema de arrastre de la cinta |
| transp., avia. | Task Force on the Capacity of the Air Transport System in ECAC | Grupo de trabajo sobre la capacidad del sistema de transporte aéreo de la CEAC |
| transp. | track-guided transport system | medio de transporte por cables |
| environ. | transport system System of lines of movements or communication by road, rail, water or air | sistemas de transporte |
| environ. | transport system | sistemas de transporte |
| gen. | transport system | sistema de transporte |
| transp. | transport system work | transportes realizados |