The topographical test explained — map reading for taxi drivers

The topographical skills test checks whether a taxi or private hire driver can read a map and plan a sensible route without relying on satnav. It is a practical assessment of your ability to find places, follow directions and work out the best way from A to B. The format depends on who licenses you: some councils use a paper map or street atlas, while Transport for London uses a computer-based test with an on-screen map. This guide explains exactly what the test assesses, which authorities require it and how to prepare so you pass with confidence.

What is a topographical test for taxi drivers?

"Topographical" simply means relating to the layout of an area — its streets, landmarks and geography. Depending on the authority, the test may give you a street atlas (such as an A-Z), an Ordnance Survey style map or an on-screen map, and ask you to locate destinations, identify grid references or places, and plan routes. The purpose is to prove you can navigate professionally and keep passengers moving even when technology fails. It is a separate assessment from the SERU test, which covers rules and safety rather than navigation.

What the topographical test assesses

Although the exact paper varies by licensing authority, most topographical tests check the same core skills:

• Reading a street atlas or OS map. Using the index to find a place, then locating it on the correct page.
• Grid references. Reading the grid squares to pinpoint a location. On Ordnance Survey maps the convention is to read the eastings before the northings — you go "along the corridor, then up the stairs."
• Map scale and symbols. Understanding common scales — for example OS Landranger maps are 1:50,000 and Explorer maps 1:25,000 — and recognising standard symbols for hospitals, stations, schools and landmarks.
• Compass directions. Working out whether a journey runs north, south, east or west, and following directional instructions across a map.
• Identifying the quickest route. Choosing the most efficient path between two points, taking one-way streets and main roads into account.
• Calculating distance and time. Using the scale to estimate how far a route is and roughly how long it will take.

On paper-based council tests you may be asked to note the page number and grid reference of each answer, so accuracy matters as much as speed.

The TfL topographical assessment (London)

TfL's test is different from many council tests. According to TfL's topographical assessment guidelines, it is taken on a computer and you plan routes on a digital map of London using a mouse. Most of the 100 marks come from route-planning tasks (short routes, a route with a road closure and a long route), and the rest from multiple-choice questions on map symbols, places of interest, streets, road numbers and compass points. TfL's guidelines give the pass mark as 60%. It costs £40, or £30 for a re-sit (TfL topographical assessment page). Read TfL's guidelines before you book — they are free and they are the official description of the test.

Which councils require a topographical test?

Transport for London requires a topographical skills assessment for London private hire drivers (see above), unless you are exempt. Outside London, requirements vary by licensing authority. Some councils require a topographical or "knowledge" test for hackney carriage (taxi) drivers in particular — Glasgow City Council, for example, requires its Topographical Test of Knowledge for licensed taxi drivers. Others test private hire applicants too, while some have no topographical requirement at all.

Because the rules differ so much from one area to the next, the only reliable way to know what you must sit is to check the licensing pages for your council. Our overview of how to become a private hire driver explains where this test fits into the wider application.

How to prepare for the topographical test

The good news is that these are learnable, mechanical skills. A little structured practice goes a long way:

1. Get comfortable with a real map. Buy or borrow the street atlas your area uses and practise looking up places via the index, then finding the page and grid square.
2. Master grid references. Drill the eastings-before-northings rule until it is automatic, and practise reading references to four and six figures.
3. Learn the symbols and scale. Memorise the common map symbols and how to convert map distance into real distance using the scale.
4. Practise route planning against the clock. Pick two points, plan the quickest sensible route, then estimate distance and journey time. Speed comes with repetition.
5. Work through practice questions. Our free topographical practice uses original questions on general map skills such as grid references, compass directions and scale. It is not a copy of any authority's test — in particular it does not reproduce TfL's on-screen route plotting, so London applicants should also practise planning routes on a digital map of London.

If you are also licensing in London, line up your revision so you can tackle SERU and topographical together — see our SERU test guide. And since all professional drivers benefit from strong road knowledge, it is worth sharpening up with Highway Code practice too. When you are ready, run through a full set of practice tests to confirm you are passing comfortably before you book.