To make a left turn, a driver must bring a vehicle as close as possible to the left edge of the road beforehand, and proceed along that edge for as long as possible (or down the part of the road specified by road signs or markings, if any) at a reduced speed.
To make a right turn, the driver of a motor vehicle, general motorized bicycle, or trolleybus must bring it as close as possible to the center of the road beforehand, and drive at reduced speed through the intersection just inside its center point (or through the part specified by road signs or markings as that to be used, if any).
To make a right turn, the driver of a specified small motorized bicycle or light road vehicle must bring the vehicle as close as possible to the left edge of the road beforehand, and drive at reduced speed through the intersection along its outer edge.
特定小型原動機付自転車等は、右折するときは、あらかじめその前からできる限り道路の左側端に寄り、かつ、交差点の側端に沿つて徐行しなければならない。
Notwithstanding paragraph (2), to make a right turn on a one-way street, the driver of a motor vehicle, general motorized bicycle, or trolleybus must bring it as close as possible to the right edge of the road beforehand, and drive at reduced speed through the intersection inside its center point (or through the part specified by road signs or markings as that to be used, if any).
Notwithstanding paragraph (2) and the preceding paragraph, to make a right turn on a road for which road signs or markings designate that, for a right turn of a general motorized bicycle at an intersection where traffic control is carried out, the bicycle must proceed along the side edge of the intersection, and on any other road with three or more vehicle traffic lanes on the left side of the road (or on the road itself, if it is a one-way street) (hereinafter referred to in this paragraph as a "multi-lane road") (but only when turning right at an intersection where traffic control is carried out), the driver of a general motorized bicycle must bring it as close as possible to the left edge of the road beforehand, and drive at reduced speed along the side edge of the intersection; provided, however, that this does not apply when road signs or markings designate, on a multi-lane road, that a general motorized bicycle must move beforehand towards the center or the right edge of the road for a right turn at an intersection where traffic control is carried out.
一般原動機付自転車は、第二項及び前項の規定にかかわらず、道路標識等により交通整理の行われている交差点における一般原動機付自転車の右折につき交差点の側端に沿つて通行すべきことが指定されている道路及び道路の左側部分（一方通行となつている道路にあつては、道路）に車両通行帯が三以上設けられているその他の道路（以下この項において「多通行帯道路」という。）において右折するとき（交通整理の行われている交差点において右折する場合に限る。）は、あらかじめその前からできる限り道路の左側端に寄り、かつ、交差点の側端に沿つて徐行しなければならない。ただし、多通行帯道路において、交通整理の行われている交差点における一般原動機付自転車の右折につきあらかじめ道路の中央又は右側端に寄るべきことが道路標識等により指定されているときは、この限りでない。
When the driver of a vehicle uses a hand or turn signal to indicate the intention to move towards the left edge, center, or right edge of the road pursuant to the preceding paragraphs before turning left or right on a road, the driver of a vehicles behind that vehicle must not obstruct the change of course unless avoiding this would make that driver have to suddenly change speed or direction.
Read this with the articles around it
(Turning Left and Right)
To make a left turn, a driver must bring a vehicle as close as possible to the left edge of the road beforehand, and proceed along that edge for as long as possible…
車両は、左折するときは、あらかじめその前からできる限り道路の左側端に寄り、かつ、できる限り道路の左側端に沿つて（道路標識等により通行すべき部分が指定されているときは、その指定された部分を通行して）徐行しなければならない。
Open this provision(Turning Left and Right)
To make a right turn, the driver of a motor vehicle, general motorized bicycle, or trolleybus must bring it as close as possible to the center of the road beforehand…
自動車、一般原動機付自転車又はトロリーバスは、右折するときは、あらかじめその前からできる限り道路の中央に寄り、かつ、交差点の中心の直近の内側（道路標識等により通行すべき部分が指定されているときは、その指定された部分）を徐行しなければならない。
Open this provision(Turning Left and Right)
To make a right turn, the driver of a specified small motorized bicycle or light road vehicle must bring the vehicle as close as possible to the left edge of the road beforehand…
特定小型原動機付自転車等は、右折するときは、あらかじめその前からできる限り道路の左側端に寄り、かつ、交差点の側端に沿つて徐行しなければならない。
Open this provision(Turning Left and Right)
Notwithstanding paragraph (2), to make a right turn on a one-way street, the driver of a motor vehicle, general motorized bicycle, or trolleybus must bring it as close as possible to the right edge…
自動車、一般原動機付自転車又はトロリーバスは、一方通行となつている道路において右折するときは、第二項の規定にかかわらず、あらかじめその前からできる限り道路の右側端に寄り、かつ、交差点の中心の内側（道路標識等により通行すべき部分が指定されているときは、その指定された部分）を徐行しなければならない。
Open this provision(Turning Left and Right)
Notwithstanding paragraph (2) and the preceding paragraph, to make a right turn on a road for which road signs or markings designate that, for a right turn of a general motorized bicycle at an…
一般原動機付自転車は、第二項及び前項の規定にかかわらず、道路標識等により交通整理の行われている交差点における一般原動機付自転車の右折につき交差点の側端に沿つて通行すべきことが指定されている道路及び道路の左側部分（一方通行となつている道路にあつては、道路）に車両通行帯が三以上設けられているその他の道路（以下この項におい…
Open this provisionroad
「道路」
A road as defined in the Road Act, a motor vehicle road (自動車道) as defined in the Road Transportation Act, and any other place used for general traffic.
Defined inArticle 2, paragraph (1), item (i)· applies throughout the law
road sign or markingmachine translation
「道路標識等」
A road sign (道路標識) or a road marking (道路標示).
Short name set inArticle 2, paragraph (1), item (iv)
intersection
「交差点」
The part where two or more roads meet at a crossroads, T-junction or other junction; where a road has separate sidewalks and roadway, the part where the roadways meet.
Defined inArticle 2, paragraph (1), item (v)· applies throughout the law
vehicle traffic lane
「車両通行帯」
Where road markings (道路標示) show that vehicles are to travel in set parts of a road, the part of the road those markings show.
Defined inArticle 2, paragraph (1), item (vii)· applies throughout the law
vehicle
「車両」
Motor vehicles (自動車), motorized bicycles (原動機付自転車), light road vehicles (軽車両) and trolleybuses (トロリーバス).
Defined inArticle 2, paragraph (1), item (viii)· applies throughout the law
motor vehiclemachine translation
「自動車」
A vehicle that runs on a motor without rails or overhead wires, or that carries out specified automated operation (特定自動運行), other than motorized bicycles (原動機付自転車), light road vehicles (軽車両), small mobility vehicles (移動用小型車), vehicles for persons with physical disabilities (身体障害者用の車), remotely operated small vehicles (遠隔操作型小型車), and walking-aid carts, prams and other small vehicles used while walking that a Cabinet Order (政令) specifies (歩行補助車等).
Defined inArticle 2, paragraph (1), item (ix)· applies throughout the law
trolleybus
「トロリーバス」
A vehicle that runs on electric power supplied from overhead wires and does not run on rails.
Defined inArticle 2, paragraph (1), item (xii)· applies throughout the law
driving at reduced speed
「徐行」
A vehicle or streetcar (車両等) moving at a speed at which it can stop immediately.
Defined inArticle 2, paragraph (1), item (xx)· applies throughout the law
left side
「左側部分」
The part of a road, or of its roadway where it has separate sidewalks, to the left of its center; the center leaves out a streetcar track laid along the road's edge, and is the center line where road signs or markings set one.
Short name set inArticle 17, paragraph (4)
one-way street
「一方通行」
The state of a road on which vehicles are prohibited from travelling in a particular direction.
Defined inArticle 17, paragraph (5), item (i)
general motorized bicyclemachine translation
「一般原動機付自転車」
A motorized bicycle (原動機付自転車) of the kind in Article 2, paragraph (1), item (x)(a): one with an engine or motor no larger in total displacement or rated output than a Cabinet Office Order (内閣府令) sets, other than one meeting the standard in item (x)(b) for small vehicles that need no great skill to drive.
Defined inArticle 18, paragraph (1)
specified small motorized bicycle or light road vehiclemachine translation
「特定小型原動機付自転車等」
Specified small motorized bicycles (特定小型原動機付自転車) and light road vehicles (軽車両).
Short name set inArticle 18, paragraph (1)
multi-lane roadmachine translation
「多通行帯道路」
In Article 34, paragraph (5), a road with three or more vehicle traffic lanes on its left side (on a one-way road, three or more in all), other than one where road signs or markings (道路標識等) already require general motorized bicycles (一般原動機付自転車) to turn right along the edge of the intersection.
Short name set inArticle 34, paragraph (5)· applies only in this paragraph