JA:Relation:restriction
 restriction
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.svg)
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| Description |
| Used for a set of tags and members to represent a turn restriction. |
| Group |
| Restriction |
| Members help |
|
| Statistics |
これは、交差点の 曲がることの制限 やその他の制限を表現するための リレーション を作るタグとメンバーの集合の提案です(you don't have to be turning - you may not be allowed to go straight on - e.g. a bus gate is a kind of junction where the restriction is no passage from one side to the other - except for buses of course).
別々のリレーションによって表現される、一つの交差点に対する複数の制限がある場合もあります。
これを、一方通行の道路の間違った方向へ入らないように使う必要はありません - we take this for granted.
Contents |
タグ
| キー | 値 | 説明 |
|---|---|---|
| type | restriction | |
| restriction | no_right_turn / no_left_turn / no_u_turn / no_straight_on / only_right_turn / only_left_turn / only_straight_on |
If the first word is "no", then no routing is possible from the "from" to the "to" member, and if it is "only_", then you know that the only routing originating from the "from" member leads to the "to" member.
|
| except | psv / bicycle / hgv / motorcar | 制限は、これらの車種には適用されません (複数の場合: except=bicycle;psv) |
| day_on | day of week | for example, no right turn in the morning peak on weekdays might be day_on=Monday;day_off=Friday;hour_on=07:30;hour_off=09:30 |
| day_off | day of week | |
| hour_on | time of day | |
| hour_off | time of day |
- If the way does not start or end at the "via"-node, split it!
メンバー
| ウェイまたはノード | ロール | 繰り返し? | 議論 |
|---|---|---|---|
|
from | 一つ | 制限が始まるウェイ (例えば、このウェイからの右折禁止) |
|
|
to | 一つ | 制限が終わるウェイ |
|
via | either one or more or one |
the nodes or way between the end points across which you would travel if the turn weren't restricted - may just be the simple intersection of the two ways, or consider a dual carriageway where you can't turn across it, where via would be the nodes on each carriageway and/or the little way connecting the two carriageways. |
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location_hint | なしまたは一つ | a hint to a renderer as to where might be a good place to position a symbol indicating the restriction. e.g. in a N/S/E/W cross roads where you can't turn from S to E, you might put a node just SE of the junction and the renderer might place a no right turn sign there. |
道路標識
US MUTCD の標識番号をかっこ内に記します。
| 道路標識 | 制限 | 補足 | |
|---|---|---|---|
| 1 | a  / b 
|
restriction=no_left_turn | a) ドイツ、イタリア、オランダ、日本
b) france, spain, poland, ireland, uk, switzerland, brazil, Australia, US (R3-2; R3-18 combined with no U-turn) |
| 2 | a  / b 
|
restriction=no_right_turn | a) ドイツ、イタリア、オランダ、日本
b) france, spain, poland, ireland, uk, switzerland, brazil, Australia, US (R3-1) |
| 3 | a  / b 
|
restriction=no_straight_on | a) ドイツ、ポーランド、スイス、オランダ[1]、日本 / b) アイルランド、ブラジル
(US, UK and France never use such signs - you would usually be facing a No Entry sign in such a situation, or if it's two-way ahead you might see adjacent left-turn-only and right-turn-only signs) |
| 4 | a  / b 
|
restriction=no_u_turn | a) Germany, France, Spain, Poland, Switzerland, Brazil, The Netherlands, US (R3-4)
b) United Kingdom, Australia |
| 5 | a  / b 
|
restriction=only_right_turn | (a) typically approaching the junction and (b) at the junction In the US, a white rectangular sign is used for this situation and the case where one lane on a multi-lane road must turn (R3-5R) |
| 6 | a  / b 
|
restriction=only_left_turn | (a) typically approaching the junction and (b) at the junction In the US, a white rectangular sign is used for this situation and the case where one lane on a multi-lane road must turn (R3-5L) |
| 7 | 
|
restriction=only_straight_on | Used in the United Kingdom; usually seen just before a junction or on the approach to a junction In the US you'll see the text "NO TURNS" in a white square (R3-3; R3-5a is usually used only in the case where one lane on a multi-lane road must turn) |
明らかに、上述の表は不完全です; 例えば、スウェーデンの道路標識は背景が白ではなく黄色です。しかし、with the above signs it should be easy to find the corresponding restriction=xy value for most countries.
ブラジルでは、このカテゴリの全ての標識は、no_turn か only_turn かに関わらず、is a red circular sign with an arrow pointing in the direction. only_turn signs does not have the diagonal bar, while no_turn signs have (similar to 1-3b, but also for 5-7).
例
| 地図 | タグとメンバー | 説明 |
|---|---|---|
|
type=restriction
|
n で、A からは B への右折のみが許可されます。つまり、左折は禁止です。 |
|
type=restriction
|
n で、A から B へ曲がるのは禁止です。しかし直進と右折は禁止されません。この交差点でのその他の 3 つの制限は別々に定義されます。 |
|
type=restriction
|
ウェイ A からウェイ C の出口には出られません。 |
エディタ
- JOSM で制限を作成・編集するために turnrestrictions plugin をダウンロードする
- how to edit turn restrictions in JOSM も参照
エラー
参照
- ↑ RVV 1990, sign D7
関連項目
- Jughandle
- enforcement で使われる、異なったタグ付け (ウェイではなくノードで from-to を指定する)
ツール
- OSM Restriction Analyser - shows route restrictions as an overlay of sign-post icons. zoomed example (Be patient, XAPI is often overloaded.)
- cartography.sandbox.cloudmade.com/navdebug - Another map overlaying sign post icons
- Routing Service by Cloudmade (at the the time the only one based on OSM which respects turn restrictions)
- Relation Check - Tool to generate a graphical display of relations, including restrictions, from a local .osm file.
