# AI tells a driver in the UK to 'turn right at the roundabout' by signaling right and staying in the right lane, ignoring UK roundabout rules (clockwise, left lane for turning right)

- **ID:** `safety/uk-roundabout-navigation`
- **Domain:** safety
- **Category:** traffic_law
- **Error Code:** `UK-HG-ROUNDABOUT-RIGHT-TURN-ERR`
- **Verification:** ai_generated
- **Fix Rate:** 85%

## Root Cause

UK roundabouts require clockwise travel; to turn right (i.e., take the third exit), drivers must enter in the left lane (unless road markings indicate otherwise), signal right after passing the first exit, and exit from the left lane. Using the right lane incorrectly can cause collisions.

## Version Compatibility

| Version | Status | Introduced | Deprecated |
|---------|--------|------------|------------|
| UK Highway Code 2024 | active | — | — |
| DVSA Driving Test Standards | active | — | — |
| UK Road Traffic Act 1988 | active | — | — |

## Workarounds

1. **To turn right at a UK roundabout: approach in the left lane (unless signs indicate otherwise), signal left after passing the first exit, and exit from the left lane. For multi-lane roundabouts, follow lane markings (e.g., 'right turn only' arrows).** (90% success)
   ```
   To turn right at a UK roundabout: approach in the left lane (unless signs indicate otherwise), signal left after passing the first exit, and exit from the left lane. For multi-lane roundabouts, follow lane markings (e.g., 'right turn only' arrows).
   ```
2. **Practice using a driving simulator (e.g., City Car Driving) with UK road settings, or take a short lesson with a UK driving instructor to learn roundabout rules.** (85% success)
   ```
   Practice using a driving simulator (e.g., City Car Driving) with UK road settings, or take a short lesson with a UK driving instructor to learn roundabout rules.
   ```
3. **If unsure, treat the roundabout as a 'give way' junction: yield to traffic from the right, and use the left lane for all exits unless signage directs otherwise. Never assume lane usage from home country.** (80% success)
   ```
   If unsure, treat the roundabout as a 'give way' junction: yield to traffic from the right, and use the left lane for all exits unless signage directs otherwise. Never assume lane usage from home country.
   ```

## Dead Ends

- **** — In the UK, traffic flows clockwise; the left lane is for turning right (third exit) unless markings indicate otherwise. Using the right lane for a right turn forces other drivers to swerve. (80% fail)
- **** — Signaling right before entering is incorrect for a right exit; drivers should signal left when exiting, not right when approaching. Wrong signaling confuses other road users. (60% fail)
- **** — Exiting from the right lane cuts across traffic in the left lane; UK law requires exiting from the left lane unless road markings explicitly permit otherwise. (70% fail)