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WO2012007796A1 - Échangeur routier - Google Patents

Échangeur routier Download PDF

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Publication number
WO2012007796A1
WO2012007796A1 PCT/IB2010/053339 IB2010053339W WO2012007796A1 WO 2012007796 A1 WO2012007796 A1 WO 2012007796A1 IB 2010053339 W IB2010053339 W IB 2010053339W WO 2012007796 A1 WO2012007796 A1 WO 2012007796A1
Authority
WO
WIPO (PCT)
Prior art keywords
roundabout
roads
lanes
road
travel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/IB2010/053339
Other languages
English (en)
Inventor
Gianmaria De Stavola
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IDROESSE INFRASTRUTTURE SpA
Original Assignee
IDROESSE INFRASTRUTTURE SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IDROESSE INFRASTRUTTURE SpA filed Critical IDROESSE INFRASTRUTTURE SpA
Publication of WO2012007796A1 publication Critical patent/WO2012007796A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C1/00—Design or layout of roads, e.g. for noise abatement, for gas absorption
    • E01C1/04—Road crossings on different levels; Interconnections between roads on different levels

Definitions

  • This patent is related to road intersections with roundabouts and in particular it concerns a new road intersection with at least two substantially concentric roundabouts at different levels, one at a lower level, external, another at an upper level, internal, for roads with high traffic flow.
  • This patent refers to three, four or more arm intersections, the arms of which intersect generating high traffic flow, to be managed, therefore, with intersections that take into account costs and available space.
  • intersections which are compared based on the importance assigned to different parameters, in particular: the area taken up, the capacity, safety and costs.
  • Cloverleaf intersections involve two major roads.
  • a cloverleaf configuration requires a significant footprint area: with the same radius of planimetric curvature it occupies all quadrants in which the main roads divide the territory.
  • Cloverleaf configuration generates irregularities in speed in the main roadways and consequently decreases traffic safety because of the exchange areas. Cloverleaf interchanges are inexpensive because the increased use of space is offset by the construction of a single structure, namely the main flyover of a main road.
  • This limitation depends on the length of the exchange area and the number of lanes that exchange; the length is usually limited to 200-300 m, that is, at a length that creates the need to limit the entry and exit to one lane.
  • ramps can be constructed with more than one lane, depending on the flow, and the capacity of the lanes themselves, not being limited by exchange areas, is not affected.
  • the first choice is represented by traffic lights, that is, a light signal placed at road intersections, pedestrian crossings and other locations where traffic control is needed.
  • Traffic lights coordinate traffic through the use of universally used optical signals consisting of colours: green to circulate, yellow for circulate with caution and red to stop. Intersections governed by traffic lights have advantages in that they:
  • the structure of the roundabout of a known type (Fig. 1) is thus taken into account, which comprises an intersection between two or more main roads, resulting in four roads where the intersection between them is replaced by a one-way loop road around a central island.
  • the traffic must slow down before entering the roundabout giving the right of way to the vehicles already in circulation, and, once in the roundabout, must move in one direction with respect to the central island.
  • the new intersection comprises in its main parts:
  • this configuration has no hybrid junctions or secondary structures. It is a basic, simple but effective structure which also does not create discomfort from the visual-aesthetic point of view;
  • Figures 2 and 3 show the new road intersection.
  • the new road intersection consists of five main roads (A, B, C, D, E) with both directions of travel, each consisting of two or more lanes, where said roads converge towards two concentric central roundabouts (1 , 2) on overlying planes, one of which is an external lower roundabout (1) with a larger diameter, and one is an internal upper roundabout (2) with a smaller diameter.
  • said external lower roundabout (1) has an internal diameter greater or at least equal to the outside diameter of said internal upper roundabout (2), which is built on an embankment.
  • Each of said access roads comprises at least one lane (Ae, Be, Ce, De, Ee) with a first entry (Al, B l , CI , Dl , El) on the right side with respect to the direction of travel, which leads to said external lower roundabout (1).
  • Said external lower roundabout (1) in turn has an exit (B12, C I 2, D12, El 2, A 12), on the right side with respect to the direction of travel for each of said main roads (B, C, D, E, A).
  • the new road intersection foresees that some of said main roads, for example three roads (A, B, C), each have at least one internal lane or preferably two internal lanes or more (Ai, Bi, Ci), beside said external one or more lanes (Ae, Be, Ce) that access said external lower roundabout (1), which go up to access said internal upper roundabout (2).
  • Said internal access lanes for said upper roundabout pass over said external lower roundabout thus creating a second entry (A2, B2, C2) for each incoming road (A, B, C) to said internal upper roundabout (2).
  • said internal upper roundabout (2) has an exit (B22, C22, A22) on the right side with respect to the direction of travel for each of said roads (B, C, A) that access said internal upper roundabout (2).
  • the flow of traffic can be adequately adjusted by appropriate and adequate road surface marking and road signs, whether fixed or variable.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Threshing Machine Elements (AREA)
  • Liquid Crystal (AREA)
  • Optical Communication System (AREA)
  • Traffic Control Systems (AREA)

Abstract

L'invention concerne un échangeur routier comprenant trois routes ou plus entrant en intersection (A, B, C, D, E) dans les deux sens de trafic, et comprenant deux ronds-points (1, 2) auxquels on accède par une ou plusieurs voies desdites deux routes ou plus (A, B, C, D, E). Les ronds-points (1, 2) sont essentiellement concentriques et se situent sur des plans à des hauteurs différentes, le premier rond-point ou rond-point inférieur (1) se trouvant sur un plan à une hauteur moindre tandis que le second rond-point ou rond-point supérieur (2) se situe sur un plan à une hauteur plus élevée.
PCT/IB2010/053339 2010-07-15 2010-07-22 Échangeur routier Ceased WO2012007796A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000224A ITPD20100224A1 (it) 2010-07-15 2010-07-15 Intersezione stradale
ITPD2010A000224 2010-07-15

Publications (1)

Publication Number Publication Date
WO2012007796A1 true WO2012007796A1 (fr) 2012-01-19

Family

ID=43414246

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2010/053339 Ceased WO2012007796A1 (fr) 2010-07-15 2010-07-22 Échangeur routier

Country Status (2)

Country Link
IT (1) ITPD20100224A1 (fr)
WO (1) WO2012007796A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102720106A (zh) * 2012-06-27 2012-10-10 李天胜 多路口立交桥
CN103437257A (zh) * 2013-09-11 2013-12-11 申七三 通行无障碍十字路口
WO2014079153A1 (fr) * 2012-11-26 2014-05-30 Zhao Shufeng Échangeur de circulation pour séparer des piétons et des véhicules
WO2015027861A1 (fr) * 2013-08-28 2015-03-05 Wang Jenghise Système complet de division de voies à disques 3d et de stationnement
US9004808B2 (en) 2013-03-14 2015-04-14 design safety engineering, inc. Systems for converting an existing traffic intersection into an intersection having a roundabout, and related methods
CN104674624A (zh) * 2015-01-12 2015-06-03 王建山 重叠螺旋车道分流和停车综合系统
CN104929006A (zh) * 2014-03-21 2015-09-23 上海市政交通设计研究院有限公司 一种五路相交立体交叉结构
CN104963252A (zh) * 2015-03-27 2015-10-07 张文泉 城市多层环岛式立交桥
CN106758620A (zh) * 2017-01-16 2017-05-31 合肥工业大学 一种梅花式双层通行立交桥的五岔路口道路
WO2017167138A1 (fr) * 2016-04-01 2017-10-05 王朝阳 Échangeur et procédé de canalisation de circulation
CN109360412A (zh) * 2018-11-02 2019-02-19 吉林大学 基于车联网的城市多层车道环岛结构及其交通控制方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2941454A (en) * 1957-10-21 1960-06-21 Cedeno Arturo Olivero Traffic intersection
WO2003076723A2 (fr) * 2002-03-11 2003-09-18 Hollingdale Ltd. Noeud de circulation avec voies separees
EP1420114A2 (fr) * 1997-11-19 2004-05-19 Jang Hee Lee Système d'intersection
US20090035058A1 (en) * 2007-08-03 2009-02-05 Reuben Berman Interchange System

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2941454A (en) * 1957-10-21 1960-06-21 Cedeno Arturo Olivero Traffic intersection
EP1420114A2 (fr) * 1997-11-19 2004-05-19 Jang Hee Lee Système d'intersection
WO2003076723A2 (fr) * 2002-03-11 2003-09-18 Hollingdale Ltd. Noeud de circulation avec voies separees
US20090035058A1 (en) * 2007-08-03 2009-02-05 Reuben Berman Interchange System

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102720106B (zh) * 2012-06-27 2015-06-24 李天胜 多路口立交桥
CN102720106A (zh) * 2012-06-27 2012-10-10 李天胜 多路口立交桥
WO2014079153A1 (fr) * 2012-11-26 2014-05-30 Zhao Shufeng Échangeur de circulation pour séparer des piétons et des véhicules
US9004808B2 (en) 2013-03-14 2015-04-14 design safety engineering, inc. Systems for converting an existing traffic intersection into an intersection having a roundabout, and related methods
WO2015027861A1 (fr) * 2013-08-28 2015-03-05 Wang Jenghise Système complet de division de voies à disques 3d et de stationnement
CN103437257A (zh) * 2013-09-11 2013-12-11 申七三 通行无障碍十字路口
CN104929006A (zh) * 2014-03-21 2015-09-23 上海市政交通设计研究院有限公司 一种五路相交立体交叉结构
CN104674624A (zh) * 2015-01-12 2015-06-03 王建山 重叠螺旋车道分流和停车综合系统
CN104963252A (zh) * 2015-03-27 2015-10-07 张文泉 城市多层环岛式立交桥
WO2017167138A1 (fr) * 2016-04-01 2017-10-05 王朝阳 Échangeur et procédé de canalisation de circulation
CN106758620A (zh) * 2017-01-16 2017-05-31 合肥工业大学 一种梅花式双层通行立交桥的五岔路口道路
CN106758620B (zh) * 2017-01-16 2019-04-23 合肥工业大学 一种梅花式双层通行立交桥的五岔路口道路
CN109360412A (zh) * 2018-11-02 2019-02-19 吉林大学 基于车联网的城市多层车道环岛结构及其交通控制方法

Also Published As

Publication number Publication date
ITPD20100224A1 (it) 2012-01-16

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