道路標識イギリス
51. 障害者用駐車
障害者用駐車は、適用要件を満たす障害者のために確保された駐車枠や駐車特例です。通常、国際的な車いす記号で示され、施設へ容易にアクセスできる位置に配置されます。
利用には一般に有効な障害者駐車許可証やカードが必要です。許可証は通常、特定車両ではなく対象者に属し、その人が運転または同乗している場合にのみ使用できます。
Who may use a disabled parking space?
Disabled parking spaces are intended for eligible people who hold a valid disabled parking permit or card. The exact eligibility requirements and permit system depend on the country.
Can someone use a disabled parking permit when the holder is not present?
Generally no. Disabled parking permits are normally personal and may only be used when the permit holder is driving or travelling in the vehicle.
Does a disabled parking permit always provide free parking?
No. A permit may provide access to reserved spaces or exemptions from certain parking restrictions, but rules concerning parking charges and time limits vary between countries and local authorities.
52. 後退
後退は車両を後ろ向きに動かすことです。駐車、狭い場所から出るとき、前進では位置調整できない場合などに使われます。
後退前にミラーと死角を確認し、車両周囲をよく見て後方が空いていることを確かめます。後方視界は限られるため、ゆっくり、必要な距離だけ後退します。
What should you check before reversing?
Check behind and around the vehicle for pedestrians, cyclists, other vehicles and obstacles. Use mirrors and cameras where available, but also look directly because monitoring systems can have blind spots.
Who has priority when a vehicle is reversing?
In many countries, reversing is treated as a manoeuvre and the reversing driver must give way to other road users. The exact legal requirements depend on national traffic rules.
Should you reverse for a long distance?
No. Reversing should normally be limited to the distance necessary to complete the manoeuvre safely. Driving forward generally provides better visibility and vehicle control.
53. 迂回路
迂回路は、通常経路が閉鎖、遮断、利用不能なときに使う一時的な代替経路です。工事、事故、イベント、洪水などで設定されます。仮設方面標識に注意し、必要に応じて減速し、慣れない道路、変更された優先関係、増加した交通を予想して運転します。
What is a detour?
A detour is an alternative route that directs traffic around a closed, blocked or restricted section of road.
Why are detours used?
Detours may be introduced because of roadworks, accidents, flooding, public events or other temporary obstructions that prevent normal use of the road.
Do you have to follow a detour?
Drivers must follow mandatory traffic signs and authorised traffic directions. A signed detour should be followed when the normal route is closed or restricted.
Are detours always temporary?
Most detours are temporary and remain in place only while the normal route is unavailable, although they can sometimes last for an extended period during major works.
Should you drive differently on a detour?
Yes. Detours may use unfamiliar or smaller roads, so drivers should reduce speed where necessary, watch for changed priorities and follow temporary signs carefully.
What is the difference between a detour and a diversion?
Detour and diversion generally describe the same concept: an alternative route around a road that cannot be used normally. The preferred term varies between countries and languages.
54. 路面
路面状態警戒は、前方路面が凹凸、破損、不良状態で、車両の安定性、操舵、制動へ影響する可能性を示します。段差、窪み、穴、舗装破損などが含まれます。
必要に応じて減速し、安全な車間距離を保ち、不整路面上では急な操舵や制動を避けます。標識の意味や形は国によって異なるため、現地の交通標識と規則に従います。
What does a road surface warning mean?
A road surface warning indicates that the surface ahead may be uneven, damaged or otherwise capable of affecting the safe movement of vehicles.
What kinds of road defects can the warning indicate?
Depending on the country, it may warn of bumps, depressions, potholes, broken pavement, uneven repairs or other surface irregularities.
What should you do when you see a road surface warning?
Reduce speed where necessary, increase your awareness of the road ahead and be prepared for changes in the vehicle's stability or direction.
Does a road surface warning impose a specific speed limit?
Not normally. A warning sign alerts drivers to a hazard rather than establishing a numerical speed limit. A separate speed-limit sign may be used where a particular maximum speed is required.
Should you brake before reaching an uneven road surface?
Where slowing is necessary, it is generally safer to reduce speed before reaching the irregular surface rather than braking sharply while travelling over it.
Why can an uneven road surface be dangerous?
A severe surface irregularity can affect tyre contact, steering, braking and vehicle stability. It can also damage tyres, wheels or suspension components.
Are motorcycles and bicycles particularly affected by uneven surfaces?
Yes. Two-wheeled vehicles can be particularly sensitive to potholes, ridges and other irregularities because these hazards may disturb their balance or alter their direction suddenly.
Is an uneven-road warning the same as a slippery-road warning?
No. An uneven-road warning concerns the physical condition or shape of the road surface. A slippery-road warning concerns reduced tyre grip caused by the surface or conditions such as water, ice, mud or other substances.
Can the warning apply over a longer section of road?
Yes. A supplementary sign may indicate the distance to the hazard or the length of the affected section, depending on the country's traffic-sign system.
Should you increase your following distance on a poor road surface?
Yes, when conditions require it. Additional distance provides more time to react if the vehicle ahead slows suddenly to avoid a pothole or other surface defect.
55. 路肩
路肩は、車道と側溝、法面、敷地境界など道路脇の要素との間にある土地の帯です。車道と同じ高さまたは高くなっており、草、砂利、土などで構成されます。
通常、車道、歩道、自転車道とは別の部分です。現地交通法により、特定状況で歩行者、自転車、車両の利用が認められ、停車・駐車にも特別規則が適用される場合があります。
What is a verge?
A verge is an area alongside a roadway, generally between the roadway and a ditch, embankment, property boundary or other roadside feature.
Is a verge part of the roadway?
No. A verge is normally a separate part of the road environment alongside the roadway.
Is a verge the same as a pavement?
No. A pavement or sidewalk is specifically intended for pedestrians, while a verge may primarily form the roadside margin and may not be paved or comfortably walkable.
Is a verge the same as a cycle path?
No. A cycle path is specifically designated for cyclists and other permitted users. A verge has a different function and legal status.
Can a verge be level with the roadway?
Yes. A level verge lies approximately at the same height as the roadway and may consist of grass, gravel, soil or another surface.
Can a verge be raised?
Yes. A raised verge lies above the level of the roadway and is normally clearly distinguishable from it.
Can pedestrians walk on a verge?
Yes, where local rules permit or require it. A verge may provide a walking route where no suitable pavement or dedicated pedestrian facility is available.
Can cyclists ride on a verge?
This depends on the country, type of verge and available cycling facilities. Local traffic law may permit cyclists to use a suitable verge in particular circumstances.
Can vehicles drive on a verge?
Normally vehicles use the roadway, but local rules may permit temporary use of a suitable verge for purposes such as passing, meeting oncoming traffic or accessing property.
Can vehicles park on a verge?
This depends on local traffic law, the type of verge and the location. Where verge parking is permitted, sufficient space may have to remain available for pedestrians and other road users.
Should you drive onto a soft verge at high speed?
No. A soft or uneven verge can provide significantly less grip than the roadway and may affect steering or vehicle stability. Reduce speed and return to the roadway safely when possible.
Can a verge contain roadside signs or other equipment?
Yes. Verges commonly provide space for traffic signs, lighting, drainage, utility equipment, vegetation and other roadside infrastructure.
56. 交通静穏化
交通静穏化は、特に歩行者や自転車と自動車が近接する地域で車両速度を下げ安全性を高める道路設計対策です。速度ハンプ、嵩上げ横断歩道、道路狭窄、シケイン、交通島、道路配置や舗装の変更などがあります。
目的は速度標識だけに頼らず、運転者がより低く適切な速度で走るよう促すことです。使用される設備や法的要件は国によって異なります。
What is traffic calming?
Traffic calming is the use of road-design measures to reduce vehicle speeds and create safer conditions for pedestrians, cyclists and other road users.
What are common traffic-calming measures?
Common measures include speed humps, raised crossings, chicanes, narrowed carriageways, traffic islands and redesigned intersections.
Where is traffic calming commonly used?
Traffic calming is commonly used in residential areas, school areas, town centres and other places with significant pedestrian or cyclist activity.
57. 乗馬
乗馬は馬に乗る活動や馬と騎手に関するものを指します。道路交通では、地域規則や設備に応じて騎手が道路、乗馬道、専用ルートを利用する場合があります。
運転者は馬と騎手へ近づく際、減速し、十分な間隔を取り、動物を驚かせる急な音や動きを避ける必要があります。騎手も適用される交通規則に従います。
What does equestrian mean in road traffic?
Equestrian refers to horse riding and, in a traffic context, particularly to people travelling on horseback or using designated horse-riding routes.
Where can equestrians ride?
Depending on local rules, riders may use roads, bridleways, paths or routes specifically designated for horse riding.
How should drivers behave near horse riders?
Drivers should slow down, leave plenty of space and pass calmly, avoiding sudden acceleration, horn use or other actions that could frighten the horse.
58. 非常口
非常口は、火災、煙、その他の重大事故時に道路利用者がトンネルなど閉鎖型交通施設から避難できるよう示された避難経路です。非常口は直近の危険から隔離されたより安全な区域へつながります。
避難が必要な場合、乗員は車両から離れ、非常口標識と指示に従います。危険から離れ、トンネル内に留まったり車両へ戻ったりしてはいけません。
What is an emergency exit in a road tunnel?
An emergency exit is a designated escape route that allows people to leave the traffic area of a tunnel and reach a safer location during an emergency.
When should you use a tunnel emergency exit?
Use an emergency exit when evacuation is necessary because of fire, smoke or another serious danger, or when instructed to evacuate by tunnel personnel or emergency services.
Should you take your vehicle through an emergency exit?
No. Tunnel emergency exits are intended for people evacuating on foot. Leave the vehicle when necessary and follow the marked escape route towards safety.
59. 市街地境界
市街地境界は、道路交通上、市街地・都市区域が始まるまたは終わる境界です。地名標識や市街地標識で示され、都市速度制限、駐車規則など特別規則の開始・終了地点となることがあります。
交通上の市街地境界は自治体の行政境界と必ずしも一致しません。法的意味はその国の道路標識と交通規則によります。
What is a city limit?
A city limit marks the boundary of a city, town, village, locality or municipality. On roads, it is often indicated by a place-name or boundary sign.
Does a city-limit sign always mark a built-up area?
No. A city-limit or locality sign may simply identify a place or administrative boundary. A legally defined built-up area can use a different sign or definition.
Does passing a city-limit sign always change the speed limit?
No. In some countries a locality or boundary sign has consequences for traffic rules, while in others it mainly identifies the place. Drivers must follow the traffic signs and rules that apply in that country.
Is a city limit the same as a municipal boundary?
Not always. Some signs indicate an administrative municipal boundary, while others identify a city, town, village or locality without exactly following the municipality's legal boundary.
What is the difference between a city limit and a built-up area?
A city limit identifies the boundary of a named place or administrative area. A built-up area is a traffic-law concept that may affect rules such as default speed limits. The two boundaries can coincide, but they do not have to.
60. 観光地
観光地は、文化、歴史、レクリエーション、自然、娯楽などを目的に訪問者が向かう場所です。記念碑、城、博物館、景勝地、遊園地などが含まれます。
目的地への案内には観光標識や方面案内標識が使われます。色、記号、表示される施設の種類は国によって異なります。
What is a tourist attraction?
A tourist attraction is a place that visitors travel to because of its cultural, historical, natural, recreational or entertainment value.
What are examples of tourist attractions?
Examples include monuments, castles, museums, scenic locations, cultural sites, amusement parks and recreational destinations.
Can tourist attractions be indicated by road signs?
Yes. Many countries use tourist or direction signs to guide travellers toward important attractions and places of interest.
61. ナンバープレート
ナンバープレート(登録番号標または車両番号標)は、登録当局から車両へ割り当てられた固有の登録識別番号を表示するプレートです。車両登録、交通取締、税、保険、駐車管理などで車両を識別するために使われます。
外観、形式、取付位置、必要枚数は国や車種で異なります。必要なプレートを正しく取り付け、はっきり見え、読み取れる状態に保ち、紛失、盗難、破損、交換時には現地規則に従います。
What is a licence plate?
A licence plate is a plate displaying the registration identifier assigned to a vehicle. It allows authorities and other authorised systems to identify the vehicle's registration.
Is a licence plate the same as a registration plate?
Yes. Licence plate, registration plate and number plate are different terms commonly used for the plate displaying a vehicle's official registration number.
Does every vehicle need a licence plate?
Most motor vehicles used on public roads must display one or more registration plates, but requirements differ for motorcycles, trailers, agricultural vehicles and other special vehicle categories.
Do vehicles need both front and rear licence plates?
This depends on the country and vehicle type. Cars commonly require front and rear plates, while motorcycles and certain other vehicles may require only a rear plate.
Must a licence plate remain visible?
Yes. A required registration plate must normally remain clearly visible and readable. It should not be hidden by luggage, dirt, accessories or other objects.
Can you modify a licence plate?
Generally no. Changing the characters, colours, dimensions or appearance of an official plate may make it invalid or illegal. Plates and authorised reproductions must comply with local specifications.
What should you do if a licence plate is lost or stolen?
Follow the local reporting and replacement procedure. Many countries require the loss or theft to be reported to the police or vehicle-registration authority before a replacement plate can be issued.
Can you drive with a damaged licence plate?
A plate must remain legible and compliant with local requirements. If damage prevents it from being read or makes it invalid, it should be replaced according to the local registration procedure.
Can a licence plate be personalised?
Some countries allow motorists to request a personalised registration combination. The available characters, formats and prohibited combinations are determined by the registration authority.
Does a licence plate stay with the vehicle when it is sold?
This varies between countries. In some systems the plate remains with the vehicle, while in others it remains associated with the registered holder and may be retained or returned when the vehicle is sold.
62. 充電ステーション
充電ステーションは、電気自動車またはプラグインハイブリッド車のバッテリーを電源へ接続して充電できる1基以上の充電器を備えた場所です。公道沿い、駐車場、サービスエリア、私有地などに設置されます。
充電スペースは充電中の車両専用の場合があり、駐車制限、時間制限、料金などの条件が適用されます。現地の標識、駐車規則、充電設備の指示に従います。
What is a charging station?
A charging station is a location where electric vehicles can be connected to an electricity supply to recharge their batteries. A station may contain one or several individual charging points.
Who can use an electric-vehicle charging station?
Charging stations are intended for vehicles that can be externally charged, such as battery-electric vehicles and plug-in hybrid vehicles. The exact vehicle categories permitted may be indicated by local signs or operator conditions.
Is a charging space an ordinary parking space?
Not necessarily. A space beside a charger may be reserved for electric vehicles or vehicles that are charging. Drivers must check the signs and markings before parking there.
Can a petrol or diesel vehicle park at a charging station?
Not where the parking space is officially reserved for electric vehicles. An ordinary parking space located near a charger may be different, so the applicable signs and markings determine who may park there.
Can an electric vehicle park at a charging point without charging?
This depends on the local traffic and parking rules. Many charging spaces require the vehicle to be connected to the charger, even if the vehicle itself is electric.
Do you have to pay to use a charging station?
Charging may be free or subject to payment. The price and payment method are determined by the charging operator, while separate parking charges may also apply.
Can a charging station have a maximum parking time?
Yes. Traffic signs, parking regulations or charging conditions may establish a maximum duration to encourage drivers to move their vehicles and make the charger available to others.
Must you move the vehicle when charging is finished?
Follow the local parking rules and charging conditions. Some locations require vehicles to leave after charging or impose additional fees or time limits when the charging session has ended.
Does using a charger override ordinary parking restrictions?
No. A charging station does not allow a driver to ignore no-parking rules, reserved spaces, time limits or other traffic regulations. The vehicle must still be legally parked.
Are all charging stations equally fast?
No. Charging stations can provide different charging powers. Some are intended for longer parking periods, while high-power chargers can recharge compatible vehicles much more quickly.
63. 一般危険
一般危険警戒標識は、より具体的な警戒標識で表せない前方の危険を知らせます。補助標識、文字、記号などで具体的な危険内容が示される場合があります。
運転者は注意を高め、前方を確認し、危険と周囲の状況に合わせて速度を調整します。標識の形や危険の示し方は国によって異なるため、現地の交通標識と規則に従います。
What does a general danger warning sign mean?
A general danger warning sign indicates that there is a hazard ahead that is not represented by a more specific warning sign in the local traffic-sign system.
What kind of danger can the sign indicate?
It can be used for unusual or uncommon hazards for which no dedicated warning symbol exists. The nature of the danger may be explained by an additional panel, symbol or message.
How can you know what the danger is?
Look for a supplementary panel, text or symbol accompanying the warning sign. It may describe the hazard or provide information needed to understand the warning.
What should you do when you see a general danger warning sign?
Increase your attention, observe the road and surroundings carefully and adapt your speed where necessary so that you can respond safely to the hazard.
Does the sign impose a specific speed limit?
Not normally. A warning sign alerts road users to danger rather than establishing a numerical speed limit. A separate speed-limit sign may be provided where a specific maximum speed is required.
Why is a general warning sign used instead of a specific warning sign?
It is used when the traffic-sign system does not contain a specific symbol that accurately represents the particular hazard.
Can the danger be temporary?
Yes. A general warning sign may be used for either a temporary or continuing hazard, depending on local signing rules and the circumstances.
Can a supplementary panel indicate the distance to the danger?
Yes. Depending on the country's traffic-sign system, an additional panel may indicate the distance to the hazard, the length of the dangerous section or other useful information.
Does a general danger sign give anyone priority?
No. A danger warning sign does not by itself change the priority rules. Drivers must continue to follow traffic lights, priority signs and the normal right-of-way rules.
Does the warning end immediately after the sign?
Not necessarily. The sign normally warns of a hazard ahead of the sign, and the dangerous situation may extend over a section of road. Supplementary information may indicate its location or length.
64. 道路の窪み
道路の窪みは、比較的短い距離で路面が下がり、その後再び上がる区間です。視界や車両安定性へ影響し、水がたまって前方状況を判断しにくくなることがあります。
接近時は必要に応じて減速し、車両を安定させ、窪み内やその先に隠れた車両、歩行者、自転車、滞水に注意します。
What is a dip in the road?
A dip is a short depression in the road surface where the road falls and then rises again.
Why can a road dip be dangerous?
A dip can reduce visibility, affect vehicle stability and hide road users or obstacles. Water may also collect in the lowest part of the depression.
How should you drive through a dip?
Approach at a suitable speed, keep the vehicle under control and be prepared for hazards that may not be visible until you enter or leave the dip.
65. トラム専用軌道・車線
トラム専用軌道・車線は、主にトラムが使用する道路部分または独立軌道です。他交通から物理的に分離される場合や、道路内にありながらトラムなど特定の許可車両だけに予約される場合があります。
標識、路面表示、交通規則で許可されない限り進入・妨害してはいけません。トラムは障害物を避けて操舵できないため、軌道を横切る際や近くを走る際は特に注意します。
What is a tram lane?
A tram lane is a lane or track area intended primarily for trams and other authorised public-transport vehicles.
Can other vehicles use a tram lane?
It depends on the country and the signs provided. Some tram lanes are exclusively reserved for trams, while others may also be used by buses, taxis, cyclists or other authorised vehicles.
Can you cross a tram lane?
Usually, where permitted and necessary. Drivers may be allowed to cross tram tracks to turn, enter a property or cross an intersection, but they must follow the applicable signs and priority rules.
66. 自転車利用者
自転車利用者は、自転車に乗り操作する人です。多くの国で自転車は法律上車両として扱われるため、自転車利用者は一般運転者と共通する多くの交通規則に加え、自転車専用規則にも従います。
必要な場合は指定自転車施設を利用し、標識・信号に従い、予測可能で安全な走行を心掛けます。道路上の位置、優先、装備、通行可能区域などは国によって異なります。
What is a cyclist?
A cyclist is a person who rides and controls a bicycle.
Is a cyclist considered a road user?
Yes. Cyclists are road users and must follow the traffic rules, signs and signals that apply to them.
Where should cyclists ride?
This depends on local rules. Cyclists may be required to use a cycle path or designated cycling facility, while in other situations they may ride on the carriageway.
67. バス
バスは、公共交通、スクール輸送、私的輸送などで多数の乗客を道路上で運ぶための自動車です。乗用車より乗車定員が多く、座席のみ、立席を含む、または両方の形式があります。
運転免許、乗車定員、速度、シートベルト、バスレーン、停留所、乗降などに特別規則が適用される場合があります。分類や規則は国によって異なるため、現地交通規則に従います。
What is a bus?
A bus is a motor vehicle designed to transport a relatively large number of passengers. It may be used for public transport, school transport, private services or other passenger transport.
What is the difference between a bus and a coach?
A bus is commonly designed for frequent passenger boarding and may allow standing passengers, while a coach is generally designed for longer journeys with passengers seated. Exact legal definitions vary between countries.
Do you need a special driving licence to drive a bus?
Yes. Driving a vehicle designed to carry more than a specified number of passengers normally requires a dedicated bus or passenger-vehicle driving licence.
Can passengers stand on a bus?
Only when the vehicle is designed and approved to carry standing passengers. Coaches and other vehicles designed exclusively for seated passengers must not be used beyond their approved passenger configuration.
Must bus passengers wear seat belts?
Where seat belts are provided and local law requires their use, passengers must wear them correctly. Urban buses designed for standing passengers may have seating positions or operating conditions that differ from coaches.
Can buses use bus lanes?
Yes, where permitted. Bus lanes are commonly reserved for public transport buses, although local signs may also allow taxis, bicycles or other specified vehicles to use them.
Do buses always have priority when leaving a bus stop?
No. Some countries require other drivers to give way to buses leaving designated stops, particularly in urban areas, while others apply the normal merging rules.
Should you take extra care near a stopped bus?
Yes. Passengers may be boarding, leaving or crossing the road near the bus. Reduce speed where necessary and watch carefully for pedestrians emerging from behind or in front of the vehicle.
Do buses have special speed limits?
They can. Some countries impose lower maximum speeds on buses than on passenger cars, particularly on high-speed roads. Different limits may apply to buses and coaches.
Can a bus use a motorway?
Yes, normally. Buses that satisfy the applicable construction and access requirements may use motorways, but they must obey any vehicle-specific speed limits, lane restrictions and other local rules.
68. 警察
警察は、法律の執行、公共安全、道路交通へ影響する状況の管理を担う公的機関です。交通では車両検査、交通取締、事故調査、交通整理、緊急対応などを行います。
道路利用者は警察官など権限を持つ交通整理員の適法な指示に従います。現地法により、警察の指示は一時的に信号、道路標識、通常の交通配置より優先する場合があります。
What is the role of police in road traffic?
Police help enforce traffic laws, manage traffic, investigate collisions and respond to dangerous situations. They may also carry out roadside checks and direct road users.
Must you obey a police officer directing traffic?
Yes. Lawful directions given by an authorised police officer must be followed. In many countries, those directions take precedence over traffic lights, road signs and normal priority rules.
What should you do if police signal you to stop?
Slow down, follow the officer's directions and stop at a safe location as instructed. Do not make sudden movements or continue driving unless directed to do so.
Can police direct you through a red traffic light?
Yes, where authorised by local law. A police officer controlling traffic may instruct road users to proceed even when a traffic light or sign would normally require them to stop.
Can police check your driving documents?
Yes. Police may require drivers to provide documents such as a driving licence, vehicle registration, identification or proof of insurance according to local law.
Can police carry out alcohol or drug checks?
Yes. Traffic police may conduct legally authorised alcohol and drug checks using procedures such as breath, saliva or other approved tests.
Can police temporarily close a road?
Yes. Roads or lanes may be temporarily closed or traffic diverted because of collisions, emergencies, investigations, public events or other safety concerns.
What should you do near police controlling an accident scene?
Reduce speed, remain alert and follow all directions. Do not enter a closed area or interfere with emergency personnel, and leave sufficient space for emergency vehicles.
What should you do when a police vehicle approaches with emergency signals?
Follow the local rules for priority vehicles. Drivers generally have to make sufficient space, give way and stop where necessary so that the emergency vehicle can pass safely.
Can police order a parked vehicle to be moved?
Yes, where local law permits it. Police or another authorised authority may require a vehicle to be moved when it obstructs traffic, creates danger or must be removed for operational reasons.
69. 救急車
救急車は、緊急医療の提供や患者輸送のため装備・使用される車両です。医療機器と訓練された職員を乗せ、搬送中に治療する場合があります。
緊急出動中は警光灯とサイレンを使用し、特別な優先権や一部交通規則の例外が認められる場合があります。他の道路利用者は現地規則に従い、十分な通路を空け、進行を妨げない必要があります。
What is an ambulance?
An ambulance is a specially equipped vehicle used to provide emergency medical assistance and transport sick or injured people.
When does an ambulance have priority?
This depends on the local traffic rules and warning signals being used. Ambulances responding to emergencies commonly use flashing lights and a siren to indicate that other road users must make way.
What should you do when an ambulance approaches?
Remain calm and make sufficient space for it to pass. Slow down or stop where necessary, but avoid sudden or dangerous manoeuvres.
Should you stop immediately when you hear an ambulance siren?
Not necessarily in your exact position. Move or stop in a way that creates a safe passage without blocking an intersection, pedestrian crossing or another part of the road needed by the ambulance.
Can an ambulance pass a red traffic light?
Emergency vehicles may be allowed to pass a red light during an urgent response under special legal conditions. The precise rules differ between countries, and the ambulance driver must still take appropriate precautions.
Can an ambulance exceed the speed limit?
Many countries permit emergency vehicles to depart from certain normal speed rules during an urgent mission, subject to safety requirements and national legislation.
Can an ambulance drive through a traffic queue?
Yes, when responding to an emergency and legally permitted to do so. Other road users should create space and keep emergency corridors or access routes clear where required.
Can you follow an ambulance through traffic?
You should not use the passage created for an ambulance as a way to bypass congestion. Maintain a safe distance and continue to obey the normal traffic rules.
Do ambulances always use their sirens?
No. The use of warning lights and sirens depends on the urgency of the mission and local regulations. An ambulance transporting a patient does not necessarily need to use emergency signals throughout the journey.
What should you do near a stationary ambulance?
Reduce speed and remain alert. Medical personnel, patients or other emergency workers may be entering the road, and the ambulance may need to move unexpectedly.
70. 車道
車道(carriageway)は、主に車両の通行を目的とする道路部分です。一方向または双方向の交通を通し、1本以上の車線に分けられる場合があります。
車道は道路全体の一部です。自転車道、歩道、側帯、駐車区域などは道路の別部分を構成し、異なる交通規則が適用される場合があります。
What is a roadway?
A roadway, or carriageway, is the part of a road primarily intended for the movement of vehicles.
Is the roadway the same as the entire road?
No. The complete road can also contain pavements, cycle paths, verges, parking areas, central reservations and other sections that do not form part of the roadway.
Is a traffic lane the same as a roadway?
No. A traffic lane is a portion of the roadway intended for a line of moving vehicles. A roadway may contain one or several lanes.
Can a roadway carry traffic in both directions?
Yes. A roadway may carry two-way traffic or may be restricted to traffic travelling in only one direction.
Is a cycle path part of the roadway?
Normally no when it is legally designated as a separate cycle facility. It may form part of the wider road while remaining separate from the roadway.
Is a pavement part of the roadway?
No. A pavement or sidewalk is normally a separate part of the road intended primarily for pedestrians.
Can a parking area be separate from the roadway?
Yes. A designated parking strip or parking area may form a separate part of the road alongside the roadway.
Where should drivers normally travel?
Drivers normally use the roadway and the traffic lanes intended for their direction of travel, except where another part of the road is specifically provided or permitted for their vehicle category.
Can cyclists use the roadway?
Yes. Cyclists may or must use the roadway when permitted by local rules, particularly where no applicable cycle facility is available or compulsory.
Can pedestrians use the roadway?
Pedestrians may sometimes use the roadway when no suitable pedestrian facility is available, subject to the local rules governing their position and direction of travel.
Can road markings divide a roadway into lanes?
Yes. Continuous or broken longitudinal road markings commonly divide a roadway into individual traffic lanes and regulate how drivers may move between them.
Can different parts of the same road have different rules?
Yes. The roadway, cycle paths, pavements, parking areas and other sections may each have different permitted users and traffic rules.
71. 街路
街路は、市街地で住宅、事業所、学校、店舗などへのアクセスを提供する道路です。自動車、自転車、歩行者など複数の道路利用者が共用することが一般的です。
車道、歩道、自転車施設、駐車区画、公共交通停留所などを含む場合があります。速度、優先、駐車、利用可能者は現地の標識、道路設計、規則によります。
What is a street?
A street is a road in a built-up or developed area that commonly provides access to buildings, properties and activities along it.
Is a street the same as a road?
Not exactly. Road is a broader term that can include motorways, rural roads and other routes. A street is normally associated with a built-up area and access to properties or activities.
Is a street the same as the roadway?
No. The roadway or carriageway is the part primarily intended for vehicle traffic. A street can also contain pavements, cycle facilities, parking areas and other infrastructure.
Can pedestrians use a street?
Yes. Pedestrians normally use the pavement, sidewalk or other pedestrian facilities provided along the street and cross the roadway according to the applicable crossing rules.
Can cyclists use a street?
Yes. Cyclists may use cycle paths, cycle lanes or the roadway according to the local traffic rules and infrastructure.
Can a street have one-way traffic?
Yes. A street may be restricted to vehicles travelling in one direction, while signs may sometimes allow particular road users such as cyclists to travel in both directions.
Can a street be closed to motor vehicles?
Yes. Streets may form pedestrian zones, school streets, play streets or other restricted areas where motor-vehicle access is prohibited or limited.
Is there one speed limit for all streets?
No. The applicable speed depends on the country, location, type of street and traffic signs. Special lower limits commonly apply in residential, school or pedestrian-oriented areas.
Can cars park on a street?
Yes, where parking is permitted. Drivers must respect parking signs, road markings and general restrictions concerning crossings, intersections, driveways and other protected locations.
Can public transport use a street?
Yes. Streets may carry buses, trams or other public transport and can include dedicated lanes, tracks and passenger stops.
Can a street include a cycle path?
Yes. A cycle path may run along a street while remaining a separate part of the road from the ordinary roadway.
What should drivers expect on a street?
Drivers should expect frequent interaction with pedestrians, cyclists, parked vehicles, intersections, driveways and public transport and should adapt their speed and observation accordingly.
72. ポットホール
ポットホールは、摩耗、天候、水、反復荷重、舗装劣化などにより路面に生じる穴・窪みです。大きさ・深さはさまざまで、凍結、豪雨、反復交通で悪化することがあります。
操舵、制動、車両安定性へ影響し、タイヤ、ホイール、サスペンションを損傷することがあります。前方路面を確認し、速度を調整し、危険な急操作を避けます。
What is a pothole?
A pothole is a hole or depression that develops in a road surface when the pavement becomes damaged or deteriorates.
How do potholes form?
Potholes can develop through a combination of water, temperature changes, traffic loads and deterioration of the road material. Cracks can gradually expand until pieces of the surface break away.
Why are potholes dangerous?
A pothole can cause a vehicle to change direction suddenly, lose stability or suffer tyre, wheel or suspension damage. Deep potholes can present a particularly serious hazard at higher speeds.
What should you do when you see a pothole?
Reduce speed when necessary, maintain control of the vehicle and avoid abrupt steering or braking. Only move around the pothole when this can be done safely without endangering other road users.
Should you brake while driving through a pothole?
If possible, reduce your speed before reaching the pothole. Sudden heavy braking or steering while passing over a damaged surface can make the vehicle less stable.
Are potholes particularly dangerous for motorcycles?
Yes. A pothole can disturb the steering or balance of a motorcycle and may cause the rider to lose control.
Are potholes dangerous for cyclists?
Yes. Bicycle wheels can be strongly affected by deep holes or sharp edges, particularly when the cyclist has little time or space to avoid the hazard.
Can a pothole damage a car?
Yes. Severe impacts can damage tyres, wheel rims, suspension components, steering parts or wheel alignment.
Should you swerve suddenly to avoid a pothole?
No. A sudden evasive movement may create a greater danger by bringing the vehicle into conflict with cyclists, pedestrians, oncoming traffic or vehicles in another lane.
Can a warning sign indicate potholes ahead?
Yes. Depending on the country's traffic-sign system, an uneven-road or general-danger warning sign may be used where poor road conditions create a significant hazard.
73. 私道
私道は、私有地上にあり、その利用を所有者・管理者が管理または制限する道路です。住宅、事業所、工業施設、農場、駐車場などに接続します。
一般公衆に閉鎖される場合も、居住者、顧客、従業員などにだけ開放される場合もあります。通常の交通規則が適用されるかは、土地所有者だけでなく道路の法的地位と一般公衆への開放性によります。
What is a private road?
A private road is a road whose access and use are controlled by a private owner or organisation rather than being freely available as part of the ordinary public-road network.
Who may use a private road?
This depends on the owner's access rules. Use may be limited to residents, visitors, customers, employees, delivery vehicles or other authorised persons.
Can a private road be open to the public?
Yes. A privately owned road may be made available to general public traffic. In some legal systems, this can affect which traffic rules apply to it.
Is a private road the same as private property?
No. A private road is one particular type of private property. Private property can also include buildings, gardens, yards, car parks and other land.
Can the owner close a private road?
Generally yes, subject to applicable legal rights and restrictions. Access can be controlled by gates, barriers, signs or permits.
Do traffic signs on a private road have the same legal status as official road signs?
Not necessarily. Their legal effect depends on the country, road status and authority under which they were installed.
Do normal speed limits apply on a private road?
This depends on whether the road falls within the scope of the country's road-traffic legislation. The owner may also impose additional private speed restrictions.
Can you park on a private road?
Only when the owner's rules and applicable law permit it. Parking may be reserved, restricted or prohibited.
Can unauthorised vehicles be removed from a private road?
Depending on local law, the owner or operator may be able to arrange removal of vehicles that are unauthorised, abandoned or obstructing access.
What should you do when leaving a private road?
Approach the public road carefully and follow the applicable rules for joining traffic from private property or an access road. Drivers commonly have to give way to road users already using the public road.
Can emergency vehicles enter a private road?
Yes, where their duties and local law permit it. Access may be necessary for fire, medical, police or rescue operations.
Why is the legal status of a private road important?
It determines whether ordinary road-traffic rules, insurance requirements, traffic signs and enforcement powers apply in the same way as they do on a public road.
74. 通路
通路は、主に歩行者向けの比較的狭い経路で、許可されている場合はその他の道路利用者や小型車両も利用できます。市街地、農村、公園、森林、道路間などに設けられ、舗装されている場合と未舗装の場合があります。
通路は必ずしも歩道や自転車道と同じではありません。利用できる道路利用者は、その法的区分、幅、交通標識、地域規則によって決まります。
What is a path?
A path is a relatively narrow route intended primarily for pedestrians and, where permitted, other road users or small vehicles.
Is a path the same as a footpath?
Not necessarily. A footpath is specifically intended for pedestrians, while a path may also permit cyclists or other users according to local rules.
Is a path the same as a cycle path?
No. A cycle path is specifically designated for bicycles and other permitted users. An ordinary path does not automatically have that legal status.
Can cyclists use a path?
This depends on the legal status, width and signs applying to the path. Some paths permit cyclists, while others are reserved for pedestrians or particular users.
Can motor vehicles use a path?
This depends on local law. Some paths prohibit motor vehicles entirely, while narrow vehicles may be permitted on other paths unless traffic signs restrict access.
Can a path be part of the public-road network?
Yes. A narrow path can legally form part of the public-road network even when it is unsuitable for ordinary cars.
Does a path need to be paved?
No. Paths can be paved, gravelled, compacted or unsurfaced depending on their location and purpose.
Can traffic signs restrict access to a path?
Yes. Signs can reserve a path for particular road users or prohibit certain vehicles, regardless of whether they could physically fit on it.
Who has priority when a path joins a larger road?
The applicable local priority rules determine who must give way. Special rules often apply when a minor path joins an ordinary road.
Can pedestrians and cyclists share a path?
Yes, where both are permitted. Faster users should adapt their speed and avoid endangering or unnecessarily obstructing pedestrians.
Can a path cross another road?
Yes. At the crossing, users must follow the applicable priority signs, traffic lights, road markings and general right-of-way rules.
Is every narrow route legally a path?
No. Its legal classification depends on the definitions and regulations of the country concerned. A narrow route might instead be a footpath, cycle path, private access road or another type of facility.
75. 粒子状物質
粒子状物質(particulate matter、PM)は、空気中に浮遊する微小な固体粒子または液滴です。道路交通では、排気ガス、ブレーキ摩耗、タイヤ摩耗、路面摩耗のほか、通過車両が巻き上げるほこりからも発生します。
粒子状物質は一般に粒径で分類されます。PM10は直径およそ10マイクロメートル以下、PM2.5はおよそ2.5マイクロメートル以下のより細かい粒子を指します。車両排出ガス基準、粒子フィルター、大気質対策などにより、これらの汚染物質への曝露低減が図られます。
What are particulates?
Particulates, or particulate matter, are very small solid particles or liquid droplets suspended in the air.
What are PM10 and PM2.5?
PM10 refers to particles with a diameter of up to approximately 10 micrometres. PM2.5 refers to finer particles with a diameter of up to approximately 2.5 micrometres.
Where do traffic particulates come from?
Road traffic can produce particles through engine exhaust, brake wear, tyre wear and road-surface wear. Passing traffic can also resuspend dust already present on the road.
Are diesel vehicles a source of particulates?
Yes. Combustion in diesel engines can produce very small soot particles. Modern diesel vehicles commonly use particulate filters to capture a large proportion of these exhaust particles.
What is a particulate filter?
A particulate filter is an exhaust-treatment device designed to trap particulate matter produced by an engine. Diesel particulate filters are commonly known as DPFs.
Do petrol engines produce particulates?
Yes. Petrol engines can also produce particulate emissions, particularly certain direct-injection engines. Appropriate emission-control systems may therefore include particulate filters.
Do electric vehicles produce particulates?
Fully electric vehicles produce no exhaust particulates from a combustion engine, but particles can still result from tyre wear, road wear and braking.
Are brake and tyre particles regulated?
Vehicle-emission regulation is increasingly addressing non-exhaust emissions. The European Euro 7 framework includes requirements concerning brake-particle emissions and tyre abrasion.
Is particulate matter the same as CO2?
No. Particulate matter consists of tiny airborne particles, while carbon dioxide is a gas. They are different types of vehicle emissions and are regulated for different environmental reasons.
How can vehicle particulate emissions be reduced?
Measures include effective particulate filters, cleaner vehicle technologies, correctly maintained emission-control systems and reductions in brake, tyre and road-wear emissions.

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