| Acronym | Sense | Language | Topics |
|---|---|---|---|
| LORAN | LOng-range Aid to Navigation | In English | → Telecommunications → Transport by air → Transport by water |
| LOTI | Loi d'Orientation des Transports Intérieurs | In French | → Politics |
| LOVe | Logiciels d'Observation des Vulnérables | In French | → Software → Road transport → France |
| LSTE | Launch Site Transportation Equipment | In English | → Astronautics |
| LTF | Lyon Turin Ferroviaire | In French | → Organizations and associations → Civil engineering and land transport → Rail transport engineering → Rail transport |
| MAGALI | Moyens Aixois de Gestion des Automobiles par Localisation Informatique | In French | → Automobile manufacturing |
| MARAD | Maritime Administration (www.marad.dot.gov) | In English | → Central administration → 6295 |
| MARNIS | Maritime Navigation and Information Services | In English | → Marine research, oceanography |
| MCN | Mutuelle Cheminots Nord | In French | → Insurance → Rail transport engineering → France |
| MELROSE | Mitsubishi Electric Road Traffic Simulation Environment | In English | → Computer simulation |
| MET | Ministère (wallon) de l'Équipement et des Transports | In French | → Central administration → Civil engineering |
| MFCF | Mutuelle Familiale des Cheminots de France | In French | → France |
| MGC | Mutuelle Générale des Cheminots | In French | |
| MIAT | Mongolyn Irgenii Agaaryn Teever = МИАТ | Монголын Иргэний Агаарын Тээвэр | In Mongolian |
In Mongolian | → Aeronautics, aircraft |
| MICSTRAN | Microscopic Simulator Model for Traffic Networks | In English | → Computer simulation |
| MITSIM | Microscopic Traffic Simulator | In English | → Computer simulation |
| MLW | Maximum Landing Weight | In English | → Aeronautics, aircraft |
| MOCA | Modification des connaissances, attitudes et/ou comportements des usagers en faveur de la sécurité routière | In French | → Vehicle engineering |
| MOCF | Mutuelle de l'Orphelinat des Chemins de Fer Français | In French | → Social welfare → France |
| MPT | Ministry of Posts and Telecommunications | In English | → Organizations and associations → Telecommunications |
| MSIS | Modélisation, Simulation et Simulateurs de conduite | In French | |
| MT | Ministerul Transporturilor, Construcţiilor şi Turismului | In Romanian | → Central administration → Construction → Tourism |
| MTA | Mobilité et Transports Avancés | In French | |
| MTC | Manual Traffic Control | In English | → Vehicle engineering |
| MTC | Mission and Traffic Control | In English | |
| MTI | Mission des Transports Intelligents | In French | |
| MTMC | Military Traffic Management Command | In English | → Military affairs |
| MTQ | Ministère des Transports du Québec | In French | → Central administration → Canada |
| MUST | Modélisation de l'Usage et de la Sécurité des Transports = MUST | Modelling the Use and Safety of Transport | In English |
In French | → Vehicle engineering |
| MUST | Modelling the Use and Safety of Transport = (look above) |
In English | → Accidents, risks, safety → Vehicle engineering |
| NAP | Navigation Analysis Program | In English | → Vehicle engineering |
| NATS | National Air Traffic Services (www.nats.co.uk) | In English | → Aeronautics, aircraft |
| NAVSAT | Navigation Satellite | In English | → Astronautics |
| NHTSA | National Highway Traffic Safety Association | In English | → Associations → Accidents, risks, safety |
| NHTSA | National Highway Traffic Safety Administration (www.nhtsa.dot.gov) | In English | → Central administration → Accidents, risks, safety |
| NHWA | National Highway Administration | In English | → Central administration |
| NMBS | Nationale Maatschappij der Belgische Spoorwegen (www.b-rail.be) = SNCB | Société Nationale des Chemins de fer Belges | In French |
In Dutch | → Rail transport engineering → Belgium |
| NPAI | N'habite Plus à l'Adresse Indiquée | In French | |
| NRRv | Naval Research Reviews | In English | → Serial publications, periodicals → 6295 |
| NTH | NEA Transport Hogeschool | In Dutch | → Education |
| ÖAMTC | Österreichischer Automobil-, Motorrad- und Touring Club (www.oeamtc.at) | In German | → Organizations and associations → Vehicle engineering → Austria |
| OCW | Opzoekingscentrum voor de Wegenbouw | In Dutch | |
| OEST | Observatoire Économique et Statistique des Transports | In French | → Statistics → Economics |
| ONCF | Office National des Chemins de Fer | In French | |
| ONISR | Observatoire National Interministériel de la Sécurité Routière | In French | → Central administration |
| ONT | Ontario International Airport (https://www.flyontario.com) | In English | → Transport by air → Canada |
| OPTILE | Organisation Professionnelle des Transports d'Île-de-France | In French | → Organizations and associations → France |
| OST | Office of the Secretary of Transportation | In English | → Central administration |
| ÖVG | Österreichische Verkehrswissenschaftlichen Gesellschaft (www.oevg.at) | In German | → Organizations and associations → Austria |
| ÖVN | Österreichischer Verein für Navigation (www.ovn.at) = AIN | Austrian Institute of Navigation | In English |
In German | → Organizations and associations → Geodesy, cartography → Austria |
| P&T | Post en Telegraaf | In Dutch | → Telecommunications |
| P&TE | Packaging and Transport Engineering | In English | |
| PAA | Pan American Airlines | In English | → Transport by air |
| PAH | Port Autonome du Havre | In French | |
| PAM | Port Autonome de Marseille (www.marseille-port.fr) | In French | → France |
| PAPI | Precision Approach Path Indicator | In English | → Aeronautics, aircraft |
| PAR | Precision Approach Radar | In English | → Aeronautics, aircraft |
| PARS | Programmed Airline Reservation System | In English | → Software → Transport by air → Tourism |
| PATH | Partners for Advanced Transit and Higways | In English | → Organizations and associations |
| PC | Piste Cyclable | In French | → Road transport → Sport, physical exercises |
| PCM | Plan Communal de Mobilité | In French | → Public administration, government → Regional planning |
| PDE | Plan de Déplacement d'Entreprise | In French | |
| PDU | Plan de Déplacements Urbains | In French | |
| PDU | Plan de Déplacement Urbain | In French | → Regional planning |
| PDUIF | Plan de Déplacements Urbains d'Ile-de-France | In French | → Public administration, government → France |
| PHST | Packaging, Handling, Storage, and Transportation | In English | → Maintenance and logistics |
| PHTR | Packaging, Handling, and Transportation Record | In English | → Records management → Maintenance and logistics |
| PIC | Plate-forme Industrielle Courrier | In French | → Postal services → France |
| PLM | Paris Lyon Marseille | In French | → France |
| PLM | Paris Lyon Méditerranée | In French | → France |
| PNC | Personnel Navigant Commercial | In French | |
| POV | Privately Owned Vehicle | In English | → Vehicle engineering |
| PPDC | Plate-forme de Préparation et de Distribution du Courrier | In French | → Postal services → France |
| PPL | Private Pilot Licence | In English | → Transport by air |
| PPTE | Periodica Polytechnica Transportation Engineering | In English | → Serial publications, periodicals → Vehicle engineering |
| PREDIT | Programme National de Recherche et d'Innovation dans les Transports Terrestres | In French | → Vehicle engineering |
| PRISCILLA | Bus PRiority strategies and Impact SCenarIos deveLoped on a Large urban Area | In English | |
| PROMU | Prospective de la Mobilité dans les Métropoles | In French | → Regional planning |
| PSMI | Pryde Schropp McComb, Inc (www.psmi.ca) | In English | → Civil engineering → Canada |
| PT | Post- og Teletilsynet | In Norwegian | → Telecommunications |
| PTT | Poŝto, Telegrafo kaj Telefono | In Esperanto | → Telecommunications |
| PTT | Post Telegraaf Telefoon | In Dutch | → Telecommunications |
| QANTAS | Queensland And Northern Territories Airline System (https://www.qantas.com) | In English | → Transport by air → Australia |
| RATP | Régie Autonome des Transports Parisiens (www.ratp.fr) | In French | → France |
| RATP | Réseau pour l'Abolition des Transports Payants | In French | → Organizations and associations |
| RAVeL | Réseau Autonome des Voies Lentes | In French | |
| RD | Route Départementale | In French | → Civil engineering and land transport |
| RDS-TMC | Radio Data System - Traffic Message Channel | In English | → Telecommunications |
| RECIFE | REcherche sur la Capacité des Infrastructures FErroviaires | In French | → Rail transport engineering → Rail transport → France |
| RECITS | Recueil des Eléments de Connaissances Interdisciplinaires sur les Transports et leur Sécurité | In French | |
| RéDI | Réseau des Doctorants de l'INRETS | In French | → Organizations and associations → Higher education, universities |
| REPOM | Réseau national de surveillance des ports maritimes | In French | |
| RER | Réseau Express Régional | In French | → Rail transport engineering |
| RESPECT | Route Empruntée en Sécurité par le Piéton Enfant Confronté au Trafic | In French | |
| RESSAC | Recherche Et Sauvetage par Système Autonome Coopérant | In English | |
| RET | Rotterdamse Electrische Tram | In Dutch | → Rail transport engineering → Netherlands |
| RFF | Réseau Ferré de France (www.rff.fr) | In French | → France |
| RFI | Rete Ferroviaria Italiana | In Italian | → Rail transport engineering → Italia |
| RFTO | Renewable Transport Fuels Obligation | In English | |
| RFVL | Rotonde Ferroviaire de la Vallée du Loir | In French | → Rail transport engineering → Rail transport |
| RGG | Réseau à Grand Gabarit | In French | |
| RIN | Royal Institute of Navigation | In English | → Geodesy, cartography → Vehicle engineering |
| RIP | Relevé d'Identité Postale | In French | → Banks → Postal services → France |
| RITA | Research and Innovative Technology Administration (www.rita.dot.gov) | In English | → Central administration → Research policy |
| RN | Route Nationale | In French | |
| RNA | Autoritatea Navală Română = RNA | Romanian Naval Authority | In English |
In Romanian | → Central administration |
| RoLa | Rollende Landstraße | In German | |
| RPC | Route Preemption Control | In English | |
| RT | Railway Telecommunications | In English | → Telecommunications → Rail transport engineering |
| RTC | Réseau de Transport de la Capitale | In French | → Organizations and associations → Canada |
| RTL | Réseau de Transport de Longueuil | In French | → Organizations and associations → Canada |
| RTT | Revista Transporturilor şi Telecomunicaţiilor | In Romanian | → Serial publications, periodicals → Telecommunications |
| SAAF | Societatea de Administrare Active Feroviare | In Romanian | |
| SAAQ | Société de l'Assurance Automobile du Québec | In French | → Insurance → Automobile manufacturing → Canada |
| SABENA | Société Anonyme Belge d'Exploitation de la Navigation Aérienne | In French | → Aeronautics, aircraft → Belgium |
| SABRE | Semi-Automatic Business Research Environment | In English | → Software → Tourism |
| SADOVER | SAmenwerking op het gebied van de DOcumentatie over VERkeerswezen | In Dutch | → Libraries |
| SAEIV | Système d’Aide à l’Exploitation et à l’Information Voyageurs | In French | → Software → Rail transport engineering → Rail transport → France |
| SAETR | Serveur d’Aide à l’Exploitation Temps Réel | In French | → Software → Rail transport → France |
| SAPAR | Société Auto-Parc Agglomération Rennaise | In French | |
| SAPN | Société d'Autoroute Paris-Normandie | In French | → France |
| SAPRR | Société d'Autoroute Paris-Rhin-Rhône | In French | → France |
| SARI | Surveillance Automatisée des Routes pour l'Information des conducteurs et des gestionnaires | In French | |
| SARTRE | Social Attitudes to Road Traffic in Europe | In English | → Sociology |
| SATI | Société Aérienne de Transports Internationaux | In French | |
| SAVM | Syndicat Autolib Vélib Métropole | In French | → Organizations and associations → Road transport → Vehicle engineering → France |
| SB | Service Bulletin | In English | → Serial publications, periodicals → 63973 |
| SCATM | Société Coopérative Aérienne de Transports Méditerranéens | In French | |
| SCATS | Sydney Co-ordinated Adaptive Traffic System | In English | → Software |
| SDER | Schéma Directeur de l'Exploitation Routière | In French | |
| SEGUR | (Intégration de la) Sécurité routière dans la Gestion Urbaine | In French | → Regional planning |
| SERNAM | SERvice NAtional de Messageries | In French | |
| SESAR | Single European Sky Air Traffic Management Research | In English | |
| SETC | State Express Transport Corporation | In English | |
| SETC | Société d'Exploitation des Transports Chazot | In French | |
| SETPOS | Secure European Truck Parking Operational Services | In English | → Road transport → Europe |
| SETRA | Service d'Études Techniques des Routes et Autoroutes | In French | → Civil engineering and land transport |
| SETRAL | SErvice des TRAnsports Lourds | In French | |
| SEV | Schweizerische Eisenbahn- und Verkehrspersonal-Verband (www.sev-online.ch) | In German | → Organizations and associations → Automobile manufacturing → Rail transport engineering → Switzerland |
| SHIVA | Simulated Highways for Intelligent Vehicle Algorithms | In English | → Computer simulation → Algorithms |
| SIA | Service d'Information Aéronautique | In French | → Documentation → Transport by air → Aeronautics, aircraft |
| SID | Standard Instrument Departure | In English | → Transport by air → Aeronautics, aircraft |
| SIER | Service Interdépartemental d'Exploitation Routière | In French | → Public administration, government |
| SIFC | Southern Interior Flight Centre | In English | |
| SIMAP | Service des Industries Manufacturières et des Activité Postales | In French | → Organizations and associations → Industry, industrial policy → Postal services |
| SIRA | Système d'Informations pour la Recherche en Accidentologie | In French | → Data → Accidents, risks, safety |
| SIRIUS | Système d'Information pour un Réseau Intelligible aux Usagers | In French | |
| SISTM | Simulation of Strategies for Traffic on Motorways | In English | → Computer simulation |
| SIT | Système d'Information Trafic | In French | |
| SITI | Système Intelligent pour le Transport Intermodal urbain de voyageurs | In French | |
| SLSDC | Saint Lawrence Seaway Development Corporation (www.seaway.dot.gov) | In English | |
| SLTC | Société Lyonnaise de Transports en Commun | In French | → France |
| SMF | Societatea de Servicii de Management Feroviar | In Romanian | |
| SMN | Société Morbihannaise de Navigation | In French | |
| SNCB | Société Nationale des Chemins de fer Belges (www.b-rail.be) = NMBS (look above) |
In French | → Rail transport engineering → Belgium |
| SNCF | Société Nationale des Chemins de fer Français (www.sncf.com) | In French | → France |
| SNCFR | Societatea Naţională a Căilor Ferate Române | In Romanian | |
| SNCFT | Société Nationale des Chemins de Fer Tunisiens (www.sncft.com.tn) | In French | → Tunisia |
| SOCRATE | Système Offrant à la Clientèle la Réservation d'Affaires et de Tourisme en Europe | In French | → Software → Tourism |
| SODETREL | Société pour le Développement des Transports Électriques | In French | → Electrical engineering → Vehicle engineering |
| SODIT | SOciété Développement Innovation dans les Transports | In French | |
| SPT | Strathclyde Partnership for Transport (www.spt.co.uk) | In English | → Organizations and associations → United Kingdom |
| SPT | Service des Postes et Télécommunications (www.spt.pf) | In French | → Telecommunications |
| SPT | Société des Postes du Togo | In French | |
| SPT | Simplifying Passenger Travel (www.spt.aero) | In English | |
| SQ | Singapore Airlines (https://www.singaporeair.com) | In English | → Transport by air |
| SRJ | Stockholm-Roslagens Järnvägar | In Swedish | → Sweden |
| SRPT | Service Régional de la Police des Transports | In French | → Public administration, government |
| SRRA | Strategic Rail Research Agenda | In English | → Research policy → Rail transport engineering |
| SRWT | Société Régionale Wallonne de Transport | In French | |
| SSCC | Serial Shipping Container Code | In English | → Maintenance and logistics |
| SSF | Sveriges Segelfartygsförening | In Swedish | → Organizations and associations → Sweden |
| SSIM | Standard Schedules Information Manual | In English | → Standardization → Data → Transport by air → Tourism |
| SSR | Spårvägssällskapet Ringlinien | In Swedish | → Organizations and associations |
| SSS | Svenska Spårvägssällskapet | In Swedish | → Organizations and associations → Sweden |
| ST2N | Société Nouvelle des Transports de l'Agglomération Niçoise | In French | |
| STAN | Système de Transport de l'Agglomération Nancéienne | In French | → France |
| STAR | Standard Terminal Arrival Route | In English | → Transport by air → Aeronautics, aircraft |
| STB | Surface Transportation Board (www.stb.dot.gov) | In English | |
| STBC | Société des Transports du Bassin Chellois | In French | |
| STCUM | Société de Transport de la Communauté Urbaine de Montréal | In French | → Organizations and associations → Canada |
| STI | Systèmes de Transports Intelligents | In French | |
| STIB | Société des Transports Intercommunaux de Bruxelles |
In French | → Organizations and associations → Belgium |
| STL | Société de Transport de Laval | In French | → Organizations and associations → Canada |
| STM | Société de Transport de Montréal | In French | → Organizations and associations → Canada |
| STN | Société des Transports de Normandie | In French | |
| STN | London Stansted Airport (https://www.stanstedairport.com/) | In English | → Transport by air → United Kingdom |
| STOL | Short Take Off and Landing | In English | → Aeronautics, aircraft → Transport by air |
| STP | Syndicat des Transports Parisiens | In French | → Organizations and associations → France |
| STS | Siemens Transportation Systems | In English | → Vehicle engineering |
| STTA | Sheffield Taxi Trade Association | In English | → Associations |
| SWOV | Stichting Wetenschappelijk Onderzoek Verkeersveilgheid (www.swov.nl) | In Dutch | → Foundations → Netherlands |
| SYTRAL | SYndicat des TRansports en commun de l'Agglomération Lyonnaise (www.sytral.fr) | In French | → Organizations and associations → France |
| T&D | Transportation and Docking | In English | → Maintenance and logistics |
| TAC | Transports Annemassiens Collectifs | In French | |
| TACAN | Tactical Air Control and Navigation | In English | → Aeronautics, aircraft |
| TACAN | Tactical Air Navigation | In English | → Aeronautics, aircraft |
| TACANS | Tactical Air Control And Navigation System | In English | → Aeronautics, aircraft |
| TACC | Tactical Air Control Center | In English | → Aeronautics, aircraft |
| TAI | Transports Aériens Intercontinentaux | In French |