#transport

Railway train-performance maths as an API, computed locally and deterministically — the tractive-effort, resistance and adhesion numbers a railway engineer, train planner or rail-sim developer rates motive power with. The tractive-effort endpoint gives the pulling force a locomotive develops = 375 × horsepower × efficiency ÷ speed (mph), the classic hyperbolic curve where a constant-power loco pulls hardest at low speed and tapers as it accelerates — 4,000 hp at 25 mph and 82 % efficiency is about 49,200 lbf at the rail. The resistance endpoint gives the forces a train fights: grade resistance ≈ 20 lb per ton per 1 % of grade (the weight component along the slope, the dominant force on a hill — a 5,000-ton train on a 1 % grade fights 100,000 lbf) plus curve resistance ≈ 0.8 lb per ton per degree of curve from flange friction. The adhesion endpoint gives the hard ceiling: however much power a loco has, it can only pull as hard as the wheels grip — maximum starting tractive effort = the adhesion coefficient (≈ 0.25 dry, more with sand) × the weight on the driving wheels, so 200 tons on the drivers is about 100,000 lbf before slip. Everything is computed locally and deterministically, so it is instant and private. Ideal for rail-operations and motive-power planning tools, train-simulator and railfan apps, and transport-engineering utilities. Pure local computation — no key, no third-party service, instant. Excludes the speed-dependent Davis rolling/air resistance. 3 compute endpoints. For highway curve geometry use a horizontal-curve API.

api.oanor.com/railway-api

London public transport as an API, powered by the official Transport for London Unified API. Get live line status for the Tube and every other mode (DLR, Overground, Elizabeth line, trams, buses, river bus) with severity and disruption reasons, search any station or stop by name to get its NaPTAN id, modes, lines and coordinates, pull live arrival predictions for a stop (which line, to where, in how many minutes, from which platform), check a single line in detail with its current disruptions, and plan a door-to-door journey between two places with full leg-by-leg directions and durations. Stops and journey endpoints accept a place name, a NaPTAN id or lat,lon. Perfect for commuter and travel apps, station departure boards, status widgets, Slack/Discord bots and trip planners. No accounts, no upstream key.

api.oanor.com/tfl-api

Every public bike-share and e-scooter system in the world as an API — 1,500+ systems across 48 countries from the MobilityData GBFS catalog, plus LIVE station availability. Browse and search the systems catalog by country or name (Citi Bike, Vélib', Divvy, Blue Bikes, Capital Bikeshare, …), look up a system with its GBFS feed URLs, and fetch real-time station data — each station's name, location, capacity and how many bikes and docks are free right now — or find the nearest stations to any coordinate by great-circle distance. Ideal for trip-planning, mobility, maps and smart-city apps. Catalog data from MobilityData; live availability from each operator's official GBFS feed.

api.oanor.com/bikeshare-api

The UN/LOCODE registry (United Nations Code for Trade and Transport Locations) as an API — 116,000+ ports, airports, rail and road terminals and trade points across 249 countries. Resolve any 5-character code (e.g. USNYC → New York; DEHAM → Hamburg; NLRTM → Rotterdam) to its name, country, subdivision, transport functions (port, rail, road, airport, postal, …), IATA code and coordinates; search locations by name with country and function filters; or list every location in a country. UN/LOCODE is the standard used in shipping, logistics, customs and EDI. Ideal for supply-chain, freight, trade-compliance and logistics software.

api.oanor.com/locode-api

Search a database of 69,000+ European railway stations from the Trainline open dataset. Find stations by name and country, look one up by id or UIC code, or find all stations near a coordinate (radius search). Each record includes coordinates, UIC code, timezone and a main-station flag — ideal for travel apps, journey planners, ticketing and mobility tooling.

api.oanor.com/trainstations-api