# AI告诉英国司机在环岛处'右转'，通过打右转向灯并保持在右车道，忽略英国环岛规则（顺时针，左车道用于右转）

- **ID:** `safety/uk-roundabout-navigation`
- **领域:** safety
- **类别:** traffic_law
- **错误码:** `UK-HG-ROUNDABOUT-RIGHT-TURN-ERR`
- **验证级别:** ai_generated
- **修复率:** 85%

## 根因

英国环岛要求顺时针行驶；要右转（即第三个出口），驾驶员必须在左车道进入（除非道路标志另有指示），在通过第一个出口后打右转向灯，并从左车道驶出。错误使用右车道可能导致碰撞。

## 版本兼容性

| 版本 | 状态 | 引入 | 弃用 |
|------|------|------|------|
| UK Highway Code 2024 | active | — | — |
| DVSA Driving Test Standards | active | — | — |
| UK Road Traffic Act 1988 | active | — | — |

## 解决方案

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).
   ```
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.
   ```
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.
   ```

## 无效尝试

- **** — 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% 失败率)
- **** — 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% 失败率)
- **** — 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% 失败率)