WordNet

a point or set of points common to two or more geometric configurations
a junction where one street or road crosses another (同)crossroad, crossway, crossing, carrefour
the act of intersecting (as joining by causing your path to intersect your targets path)
a point where lines intersect (同)intersection point, point of intersection
the set of elements common to two or more sets; "the set of red hats is the intersection of the set of hats and the set of red things" (同)product, Cartesian product
the 20th letter of the Roman alphabet (同)t
a tough youth of 1950s and 1960s wearing Edwardian style clothes (同)Teddy boy

PrepTutorEJDIC

T字路(《英》T-junction)
〈C〉(特に道路の)交差点 / 〈U〉交差
tritiumの化学記号

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2012/04/18 15:17:24」(JST)

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For the type of railroad junction, see Wye (railroad).

A T-junction in Gole Market, Delhi, India.

A 3-way junction (or 3-way intersection) is a type of road junction with three arms. A Y junction (or Y intersection) generally has 3 arms of equal size. A T junction (or T intersection) also has 3 arms, but one of the arms is generally a minor road connecting to larger road.

Some T junctions are controlled by traffic lights, but others rely upon drivers to obey right-of-way rules. For example, a vehicle travelling on the major roads of the "T" typically has right-of-way, meaning that the vehicle approaching the "major" road must allow it to pass before joining the flow of traffic.

An experiment was done in Illinois, United States to allow going straight on red (like a right turn on red) when approaching a T junction on the main road, with the intersecting road on the left. It was a failure. However, at some T junctions where the main road includes at least two lanes on the side away from the intersecting road, the farthest (rightmost, in areas where traffic drives to the right) lane is given the right of way to proceed straight through the intersection at all times, denoted by a "green arrow" signal if a traffic light is installed at the intersection. In such cases, often that lane is also specially delimited with pavement markings or other lane separation devices, to keep left-turning traffic on the intersecting road from colliding with traffic proceeding through the intersection on the main road. There are now safer variations of this, called Continuous T-intersections, that have a left-exit off of the main road to completely separate those going straight, which allows for a traffic signal on only one side of the road.^[1]

In the People's Republic of China, going straight on red when approaching a T junction on the main road with the intersecting road on the left was permitted until outlawed by the Road Traffic Safety Law of the People's Republic of China effective on 1 May 2004.

In Taiwan administered by the Republic of China, when at least two vehicles reach a T intersection without a working traffic light, the vehicle on the side road is to yield to any other vehicle straight on the main road. If two vehicles want to turn left, the vehicle on the left is to yield.^[2]

Image gallery

T Intersection Sign in Taiwan with no more road straight ahead
T Intersection Sign in Taiwan with side road on the left
T Intersection Sign in Taiwan with side road on the right
Y Intersection Sign in Taiwan
3-way Intersection Sign in Taiwan with side road on the right but not right angle
3-way Intersection Sign in Taiwan with side road on the left but not right angle

References

^ An Applied Technology and Traffic Analysis Program ([1])
^ Clause 2 of Section 1 of Article 102 of the Road Traffic Security Rules (s:zh:道路交通安全規則)

UpToDate Contents

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1. 亜急性または慢性の手首の疼痛を有する成人の評価 evaluation of the adult with subacute or chronic wrist pain
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5. 膝の身体診察 physical examination of the knee

English Journal

How to present collision warnings at intersections?--a comparison of different approaches.

Werneke J, Vollrath M.SourceDepartment of Traffic and Engineering Psychology, TU Braunschweig, Gaußstraße 23, 38106 Braunschweig, Germany. julia.werneke@tu-braunschweig.de
Accident; analysis and prevention.Accid Anal Prev.2013 Mar;52:91-9. doi: 10.1016/j.aap.2012.12.001. Epub 2013 Jan 8.
Analyses of intersection accidents have shown that in most cases drivers overlook or see other road users with the right of way too late that they cannot react in time. Appropriate visual warning signals which support drivers in their attention allocation and driving behavior could be useful to impr
PMID 23305968

Motorcycle and scooter speeds approaching urban intersections.

Walton D, Buchanan J.SourceUniversity of Canterbury, New Zealand. darren@hsc.org.nz
Accident; analysis and prevention.Accid Anal Prev.2012 Sep;48:335-40. doi: 10.1016/j.aap.2012.02.001. Epub 2012 Mar 3.
Five urban, uncontrolled T-intersections known to be motorcycle crash 'black spots' were monitored using instrumentation and a roadside observer. Two sets of twelve-hour observations were collected for each site (N≈100,000). Instrumentation recorded the 'events' of vehicles passing to measure, spe
PMID 22664698

Photoreflectance study of strained GaAsN/GaAs T-junction quantum wires grown by metal-organic vapor phase epitaxy.

Klangtakai P, Sanorpim S, Onabe K.SourceDepartment of Physics, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand.
Journal of nanoscience and nanotechnology.J Nanosci Nanotechnol.2011 Dec;11(12):10584-8.
Strained GaAsN T-junction quantum wires (T-QWRs) with different N contents grown on GaAs by two steps metal-organic vapor phase epitaxy in [001] and [110] directions, namely QW1 and QW2 respectively, have been investigated by photoreflectance (PR) spectroscopy. Two GaAsN T-QWRs with different N cont
PMID 22408953

Japanese Journal

車車間・路車間通信を用いた交差点における渋滞軽減に関する一検討(交通センシング、通信、情報処理、一般)

和久井祐太,大野光平,伊丹誠
電子情報通信学会技術研究報告. ITS 111(219), 43-48, 2011-09-21
本稿では交通シミュレータを用いて丁字路での交通流の円滑化を目的とし,車車間・路車間通信を用いた交通モデルの評価を行った.交通状況を交通渋滞や事故が発生しやすい交差点に着目し,交差点の角にビルを想定した遮蔽物がある見通しの悪い丁字路を想定した.提案方式では交差点における車両の状況を車車間・路車間通信により各車両に送信することで,効率のよい交通流をつくり渋滞の軽減を目指す.交差点では右左折車両の減速や …
NAID 110008899484

Estimating Critical Gap Acceptance for Unsignalised T-Intersection Under Mixed Traffic Flow Condition

Wan Ibrahim Wan Hashim,Sanik Mohd Erwan
Proceedings of the Eastern Asia Society for Transportation Studies 2007(0), 314-314, 2007
… Critical Gap Acceptance procedure is still widely used for estimating capacity of unsignalised intersection. … In Malaysia, the critical gap acceptance is still being used as in the existing guideline for unsignalised intersection (Arahan Teknik (Jalan) 11/1987). … In this study, critical gap acceptances under normal saturation flow conditions were estimated for unsignalised T-Intersection in Malaysia using the Maximum Likelihood Method. …
NAID 130004588614

無信号T字交差点の容量算定式とマクロ交通流シミュレーションモデルへの適用

エスパダイアン,中辻隆,タナボリブンヨッポン
土木学会論文集 = Proceedings of JSCE 695, 177-186, 2002-01-20
NAID 10007659109

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