How to plan a topographical route

Start with the overall direction

Before clicking anything, locate START and FINISH and understand the broad direction of travel. A straight line between them can be a useful orientation aid, but it is not the route: streets, junctions and restrictions determine the actual journey.

Build the route junction by junction

Plot meaningful decision points rather than hundreds of tiny points. At each turn, check that the roads genuinely connect and that the movement makes sense in the direction you are travelling.

Do not trade legality for shortness

A visually shorter line is not useful if it relies on the wrong direction of a one-way road, cuts a roundabout, crosses a central reservation incorrectly or treats an above/below crossing as a junction.

Keep the plotted line precise

When the route choice is correct, accuracy still matters for training. Zoom in around major junctions and keep the line on the intended carriageway rather than through buildings, reservations or the opposite side of the road.

Common mistakes when working on route-planning judgement

A common mistake is trying to solve route-planning judgement 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 route-planning judgement, 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 choosing a coherent legal corridor before clicking individual turns. 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 route-planning judgement

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 corridor-first planning. 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