At London Heathrow Airport, you can catch an official "Black Cab" (London taxi) at clearly marked taxi ranks located immediately outside the arrivals hall of every terminal. At Terminal 2 and 3, the ranks are found on the ground floor, just outside the main exits. At Terminal 4, the rank is located directly outside the arrivals level, and at Terminal 5, it is situated on the ground floor outside the terminal building. These ranks are managed by a "taxi marshal" who will direct you to the next available cab. Black cabs at Heathrow are fully accessible for wheelchairs and can carry up to five or six passengers with luggage. Unlike private hire vehicles (like Uber or Bolt), Black Cabs can be hailed on the spot without a pre-booking. If you prefer to use a rideshare app, you must head to a different location: the "Short Stay" car parks. Each terminal has a designated area for rideshare pickups (usually on a specific level of the car park) because these vehicles are not permitted to wait at the terminal forecourts. Always check the specific pickup instructions in your app, as M4/M25 traffic and airport security rules often lead to temporary shifts in these pickup zones.