Preparing for a topographical assessment resit

Current published resit fee

As of 10 August 2026, TfL publishes the topographical resit fee as £30. Check the current official fee and your own booking instructions before arranging a new attempt.

Start with the type of mistake

Think about whether the difficulty was map reading, route choice, one-way direction, closures, structures, road position, time pressure or using the computer interface. Different problems need different practice.

Return to targeted practice

If closures were difficult, practise closures. If longer routes became indirect, work on planning the overall corridor before clicking. If you lost precision at junctions, slow down and zoom in.

Do not rely on remembering one answer

A resit may not present the same routes. Build the transferable route-planning skill so that a new START/FINISH pair still feels manageable.

Check TfL instructions again

Before booking or attending a further attempt, review the latest instructions TfL has provided to you. Administrative rules, fees and assessment arrangements can change.

Common mistakes when working on resit preparation

A common mistake is trying to solve resit preparation too quickly. Candidates can recognise the general area yet miss the first important restriction or connection. Slow the decision down long enough to explain why the first road choice works. That small pause is usually cheaper than repairing several later turns after the route has already moved away from the best corridor.

Another mistake is treating every visible difference from the accepted line as the same problem. With resit preparation, the useful question is whether the road sequence is wrong or the drawing is merely imprecise. PCO Topography separates those signals so you can prioritise diagnosing the original weakness before adding more route volume. A route-choice correction should come before cosmetic line placement.

Finally, avoid memorising the shape of one map. Repeat the underlying decision on a different exercise. If you can explain the rule and apply it elsewhere, the skill is becoming transferable. That is why the route bank combines focused practice with full routes rather than asking you to repeat one screenshot until it looks familiar.

A practical study drill for resit preparation

Use a three-pass drill. On pass one, inspect the map without plotting and say the likely corridor aloud or write it down. On pass two, plot and submit normally. On pass three, review the first meaningful divergence from the accepted model and state the reason for it in one sentence. This keeps the session focused on decisions instead of random repetition.

For the next attempt, change only the behaviour that caused the main error. If the issue was direction, check arrows earlier. If it was a structure, verify the actual connection. If it was road position, keep the same route choice and place the line more carefully. This controlled correction makes score changes easier to interpret.

Finish by transferring the skill into targeted correction followed by full-route transfer. Do not require a perfect score before progressing; require that you can identify what you did, why it was correct or incorrect, and what you would check on an unfamiliar map. That is a stronger preparation habit than simply accumulating completed route numbers.

• Scan before clicking
• Choose the corridor
• Check direction and restrictions
• Plot meaningful junction points
• Submit without revealing the answer
• Review the first major divergence
• Repeat the same skill on a different route