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In Britain, a clearway is a stretch of road where you must not stop your vehicle. You may drive along it, but you must not park, wait, or pull up — except in a real emergency. A sign tells you it is a clearway. The idea is to keep traffic moving on a busy road that is not a . This is British road language; you will not see Clearway on signs in Taiwan or the United States. Though actually, keep the way clear in ordinary English is just advice, not this legal kind of road. A clearway is also not a : it is usually an ordinary road with one special rule, do not stop.
禁停路段（英國用語；不准把車停下來）
原始詞典資料2 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
clearwaynoun
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A road or other path that is kept free of obstructions, or on which stopping is strictly regulated, in order to maintain free flow of movement.
- The traffic lanes of the sea can be clearways for thousands of miles.
- The red cross means no stopping, not even to pick up or set down passengers. The sign is used to indicate a 24-hour clearway (usually on a rural road) or may be incorporated into other signs with the words “No stopping” (e.g. the “no stopping except local buses” sign at bus stops. On a 24-hour clearway, the prohibition of stopping applies only to the main carriageway. You may stop in a lay-by unless there are signs to say otherwise. A 24-hour clearway does not have any special road markings, but there should be smaller repeater signs at approximately one mile intervals.
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aeronauticsaerospaceaviationAn area projecting from the end of a runway that is kept clear of obstructions exceeding a height that increases with distance from the end of the runway.
- A clearway may be provided to extend the takeoff distance available (TODA) beyond the end of the hard surface which defines the declarable length of the available takeoff run (TORA).
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。