MXPA98005851A - Construction of traffic guides in road intersections to provide continuous traffic flows and methods for traffic control of mis - Google Patents

Abstract

The present invention relates to traffic guidance constructions at road intersections to provide fluid traffic flows thereof and traffic control methods with these traffic guidance constructions. The constructions mainly include elevated bridges and / or underground tunnels that extend parallel to the main road and one or more secondary roads that intersect with the main road to cross the intersections of the same in order to avoid traffic jams. Cars can move on the main and secondary roads straight ahead without interrupting at intersections. Cars moving on the main and secondary roads can make turns on either side using tunnels under elevated bridges or islands to circle over underground tunnels to avoid interference with cars moving forward directly and causing any traffic jams at intersections. These traffic guidance constructions at road intersections do not need spacious terrain nor will they be affected by constructions around the Intersections and therefore they are appropriate for topography and different spaces in order to provide fluid traffic flows. Traffic guidance constructions at road intersections to provide smooth traffic flows from them and traffic control methods with these traffic guidance constructions. The constructions mainly include elevated bridges and / or underground tunnels that extend parallel to the main road and one or more secondary roads that intersect with the main road to cross the intersections of the same in order to avoid traffic jams. Cars can move on the main and secondary roads straight ahead without interrupting at intersections. Cars moving on the main and secondary roads can make turns on either side using tunnels under elevated bridges or islands to circle over underground tunnels to avoid interference with cars moving forward directly and causing any traffic jams at intersections. These traffic guidance constructions at road intersections do not need spacious terrain nor will they be affected by constructions around the Intersections and therefore are appropriate for topography and different spaces in order to provide fluid traffic flows.

Description

TO.

CONSTRUCTION OF TRAFFIC GUIDES IN INTERSECTIONS OF ROADS TO PROVIDE CONTINUOUS TRAFFIC FLOWS AND METHODS FOR TRAFFIC CONTROL OF THEMSELVES BACKGROUND OF THE INVENTION The present invention relates to. traffic guidance constructions at road intersections, to provide continuous traffic flows and, more particularly, with traffic guidance constructions appropriate for topographies and different spaces, to guide traffic to move through intersections of roads directly and fluidly, without causing any traffic jams therein, or to stop for a traffic jam. There are patents that are going to know solutions to provide that there is no interruption at an intersection of a main road and a secondary road, an example being the North American patent number 4,986,692 entitled "CONSTRUCTION OF ROAD INTERSECTION FOR TRAFFIC CONTROL" granted to Yang Yin-Lung on January 22, 1991 (to which reference will now be made as the "cited patent"). Figure 1 of the cited patent illustrates a main road AB that extends from north to south and two secondary roads CD, EF that extend from east to west to drive on the right side. The secondary roads CD, EF that extend from east to west are to drive on the right side. The secondary roads CD, EF connect with the main road AB at right angles and their intersections are flat. Safety islands I and J are placed at intersections in such a way that the longitudinal axes of the safety islands that are parallel to the main road also divide the main road to block the transversal traffic on the secondary roads. The circular deviation paths ab, cd, ef and gh are provided on both sides of the main road, near the secondary roads. To avoid a conflict between vehicles and motorcycles at intersections, underground passages for motorcycles or pedestrians are constructed below the intersections o, p, q, r, s, t, u and v of the circular diversion paths. The main road AB has four lanes of traffic and arrows 1, 2, 3 and 4 that represent the driving direction in these lanes. Dashed lines and numbers and dashes represent lanes for vehicles. It is evident that inside vehicles lanes 2, 3 vehicles can pass directly through intersections without obstruction, but vehicles in these lanes can not make turns to the right on the secondary road CD or EF, unless to change lanes to the external lane; nor can these vehicles make turns to the left or "U", unless they go through the circular deviation road cd or gh through the tunnel or the elevated bridge. Vehicles on lanes 3 and 4 must go through the diversion path , 'á- * circular ef or ab for turns to the left or "U". ^ w The secondary road CD has two lanes 5 and 6. Vehicles in lane 5 can make a right turn onto main road AB, but can not make a left turn, nor move directly through the intersection due to safety islands I and J. Vehicles must take the circular road cd to • 5 through the tunnel or the elevated bridge, then make a : - 'turn right onto highway D or continue on main road AB. Vehicles in lane 6 must similarly take a circular deviation path AB for turns to the left or "U". In the cited patent, the circular deflection paths ab, cd, ef and gh are used to avoid traffic jams at the intersections of the secondary roads CD and EF on the main road AB and to eliminate traffic signal lights in the intersections Nevertheless, there are the following disadvantages in the cited patent: 1. The circular deflection paths ab, cd, ef and gh must have a sufficiently large curvature and sufficient lanes for the vehicles to be safely driven therein. In other words, the intersections of the main road and the secondary roads must be wide enough, while there is no building or structure, some in the areas where intersections of circular diversion roads and secondary roads are placed to allow the construction of circular diversion roads. These circular diversion paths are not appropriate for the intersection that is small and has many buildings around it. 2. Since security islands I, J are used to block traffic on roads • Secondary, vehicles that run on secondary roads must use circular diversion roads to cross intersections with the main road. However, since the width and flow of secondary road traffic and circular bypass roads are not always the same, circular bypass roads tend to have traffic jams at their entrances and still detrimentally interrupt continuous traffic on the roads. the secondary roads. That is, the safety islands that impede traffic on secondary roads that directly cross the main road, can only solve the traffic jams on the main road at intersections with secondary roads, but not the traffic jams on the roads high schools. 3. The construction of elevated tunnels or bridges on both sides of the main road, near intersections with secondary roads and with circular diversion roads, is technically complicated and causes the roads to run repeatedly up and down. In addition, the construction costs will be very high.

COMPENDIUM OF THE INVENTION Therefore, a main object of the present invention is to provide traffic guidance constructions at road intersections where only limited space is available, so that traffic flows at these intersections can be guided fluidly by elevated bridges or underground tunnels . Another object of the present invention is to provide traffic guidance constructions at road intersections, to allow vehicles on both main roads and secondary roads to run directly when passing intersections and thus avoid bottlenecks. of traffic on secondary roads caused by incorrectly designed circular diversion roads.

# BRIEF DESCRIPTION OF THE DRAWINGS 10 The aforementioned objects and others, the particularities and effects of the present invention, will be better understood from the following detailed description of the preferred embodiments, together with the accompanying drawings and in where:? Figure 1 is a conventional perspective view illustrating a first embodiment of traffic guidance constructions at a road intersection, in accordance with the present invention; Figure 2 is a conventional perspective view illustrating a second embodiment of the traffic guidance constructions at a road intersection, in accordance with the present invention; Figure 3 is a top plan view of the traffic guidance constructions of Figure 2 and the guides traffic of cars to drive on the right side; Figure 4_ is a conventional perspective view of the traffic guidance constructions at two continuous road intersections; and Figure 5 is a top plan view similar to Figure 3, showing the traffic guide constructions of Figure 2 and the traffic guides of the cars, but for driving on the left side.

DETAILED DESCRIPTION OF THE PREFERRED MODALITIES Referring to Figures 1, 2 and 4 where a main road JK extending from north to south and μna secondary road ML extending from east to west to intersect with the main road JK are illustrated. Both main and secondary roads JK and ML have two lanes of traffic divided by lines D and E, respectively. In a first embodiment, as shown in Figure 1, there is a first elevated bridge B that extends in a direction parallel to the secondary road ML and on the intersection of the secondary road ML with the main road JK, and a second and a third elevated bridges A, C built on the main road JK and parallel to it, placed near and perpendicular to each side of the first elevated bridge B of the secondary road ML. All the high bridges A, B, C have a # tunnel under them. There are also 1 underground passages for pedestrians only. In a second mode, as shown in Figure 2, there is a first underground tunnel Bl that extends in a direction parallel to the secondary road ML and through the intersection of the secondary road ML with the main road JK, and a second and third tunnels - ^ b subway Al, Cl built under the main road JK and in parallel with it, placed separately near and perpendicular to each side of the first underground tunnel Bl of the secondary road ML respectively. The elevated bridges W, X, Y and Z are built only for pedestrians and are provided with G, F islands to turn on the JK main road to center and stand on top And between two entrances to the underground tunnels Al, Cl, Vt respectively, forming a second and third islands to turn on the main road JK, above the second and third underground tunnels Al, Cl. Other islands are also provided Gl, Fl to go around, Figures 3 and 5, on the ML secondary road to center and stand above each entrance of the first underground tunnel Bl, without interfering with the JK main road, forming two first islands to turn on the ML secondary road, above the first underground tunnel Bl. Both the main road JK as the secondary road ML are provided on both sides of highway with road protectors H (Figures 3 and 5) to separate the vehicles from the - pedestrians. The stairs of the underground passages 1 and of the elevated bridges W, X, Y and Z can also be replaced by escalators. With the elevated bridges A, C and B or the underground tunnels Al, Cl and Bl built on the main road JK and on the secondary road ML, respectively, the following traffic control methods are provided: A. For driving on the right side: to. As shown in Figure 1, vehicles on main road JK and secondary road ML can advance directly through the intersection, without interruption by elevated bridges A, C and D . respectively and circle through the tunnels below bridges A, C and B, or in the case as shown in Figure 2, vehicles on the main JK road and on the ML secondary road can advance directly to through the intersection without interruption, through the underground tunnels Al, Cl and Bl, respectively and to make turns or turns in "U" on the islands to turn, above the underground tunnels Al, Cl and Bl, respectively. * b. Vehicles on the main road JK and on the ML secondary road, can make a turn or turn right to the adjacent secondary road and to the main road, respectively, changing from its lanes to an external lane. c. Vehicles on the JK main road, which want to make a left turn and onto the road ^ secondary ML, can be changed to an external lane and pass directly through the intersection, without having to pass through the elevated bridge or the underground tunnel, and then make a turn or "U" turn to the left in the tunnel or on the island to turn from the second or third elevated bridge or in the underground tunnel, towards a opposite external lane, and then make a turn to the right to the ML secondary road at the intersection. * d. Vehicles on the ML secondary road that wish to make a left turn onto the JK main road, can change to an external lane and then make a right turn onto the main road JK at the intersection. The vehicles keep moving and make a "U" turn to the left in the tunnel or on the island to turn from the second or third elevated bridge or in the underground tunnel, to an opposite external lane, and then continue directly into the main road JK. and. Vehicles moving directly on the JK main road or on the ML secondary road, can make a "U" turn in an opposite lane through the tunnels or the islands to turn from the elevated bridges A, C, B or in the underground tunnels Al, Cl, B, respectively. Specially provided a lane for motorcycles on the roads, for motorcycles to use it with the same rules mentioned above.

B. For driving on the left side: to. As shown in Figure 1, vehicles on the main road JK and on the secondary road ML, can advance directly through the intersection, without interruption, through the elevated bridges A, C and B respectively and turn the tunnels below bridges A, C and B. 0 in the case as shown in Figure 2, the vehicles on the main road JK and on the secondary road ML can advance directly through the intersection, without any interruption , through the underground tunnels Al, Cl, and Bl, respectively and make "U" turns on the islands to turn over the underground tunnels Al, Cl and Bl, respectively. b. Vehicles on the main road JK and on the secondary road ML, can make a turn to the left to the adjacent secondary road and to the main road, respectively, initially changing from its lanes to an external lane. fj »c. The vehicles on the JK main road that wish to turn right to the road secondary ML, can be changed to an external lane and pass directly through the intersection, without having to go through the elevated bridge or the underground tunnel, and then make a "U" turn to the right in the tunnel or in the Island to turn from the second or third elevated bridge or the underground tunnel, towards the opposite external lane, and then make a left turn to the secondary road ML at the intersection. d. The vehicles on the ML secondary road that wish to make a right turn onto the road main JK, can be changed to an external lane and then make a left turn to the main JK road at the intersection. The vehicles keep moving and make a "U" turn to the right in the tunnel or on the island to turn the second or third elevated bridge or in the underground tunnel, towards the opposite external lane and then proceed directly on the JK main road. and. Vehicles that move directly on the main road JK or on the secondary road ML, can make a turn in ?? U "in a lane opposite by the tunnels or the islands to turn of the elevated bridges A, C, B, or through the underground tunnels Al, Cl, Bl, respectively. Referring now to Figure 3, it will be recognized that in all cases, vehicles that turn onto a road or make a "U" turn must yield the right of way or via any incoming traffic. As shown in said Figure 3: a. The vehicles 1, 2, a; 3, 4, b and 5, 6, c; 7, 8, d are moving directly forward on main road JK and on secondary road ML, respectively. b. The vehicles 2, a; 4, b and 6, c; 8, d on the main road JK and on the secondary road ML, respectively, can make a right turn to the secondary road and to the adjacent main road respectively, initially changing from its lanes to an external lane. c. Cars 2, a; 4, b on the main road JK, who wish to make a right turn to the secondary road ML, can change to an external lane and pass directly through the intersection, without having to pass through the elevated bridge or the underground tunnel, and then make a "U" turn to the right in the tunnel or on the island to turn from the second and third elevated bridge or in the underground tunnel, towards the opposite external lane, and then make a left turn to the secondary road ML on the 9 intersection. 10 d. The vehicles 6, c; 8, d on the secondary road ML, which wish to make a right turn to the main road JK, can be changed to an external lane and then make a left turn towards the 'JK main road at the intersection. The vehicles are keep moving and make a "U" turn to the right in the tunnel or on the island to turn from the second or third third bridge elevated into the underground tunnel, towards an opposite external lane, and then continue directly on the highway main JK. 20 e. The vehicles e, f; g, h which move directly on the main road JK or on the secondary road ML, respectively, can make a "U" turn towards the opposite lane through the tunnels or the islands to turn from the elevated bridges A , C, B or in the underground tunnels Al, Cl, Bl, respectively. / lis. With the provisions of the present invention, traffic jams that are usually found at the intersections of a main road and a secondary road can be resolved, while the disadvantages existing in the patent cited as prior art can be avoided. Furthermore, the present invention consists only of building elevated bridges and / or underground tunnels, without & occupy spacious land and particularly low construction costs. It will be apparent to those skilled in the art that modifications and changes of this invention can be made, without deviating from the spirit and scope of the following claims. fifteen twenty

Claims (2)

R E I V I ND I CAC I ONE S

1. A method for controlling the flow of traffic at an intersection of a main road comprising multiple lanes in each direction, and on a secondary road comprising multiple lanes in each direction; the method comprising the steps of: a. provide the intersection with a first elevated bridge that extends in a direction parallel to the secondary road and through the intersection of the secondary road with the main highway, and a second elevated bridge and a third elevated bridge built on the main highway and in parallel with it, separated, • near each side of the first elevated bridge and on the secondary road; each of the first, second and third elevated bridges, has a tunnel under the bridge; b. allow vehicles on the main road and on the secondary road to travel directly through the intersection without interruption, through the first, second and third elevated bridges and make "U" turns through the tunnels under the elevated bridges; c. allow vehicles on the main road and on the secondary road to make a turn to an adjacent secondary road and to an adjacent main road, respectively, on one side which is the same as the driving side, changing from its lanes to a external lane, long before making the turn; d. allow vehicles on the main road, which wish to turn onto the secondary road on a side opposite the driving side, into an external lane, pass directly through the intersection, without having to pass through the second and the third elevated bridges, the vehicles on the main road then make a "U" turn in the tunnel under the second and third elevated bridges, towards the opposite external lane, and the vehicles on the main road then make a turn or turn in the intersection towards the secondary road on one side that is the same as the driving side; and e. Allow vehicles on the secondary road, wanting to make a turn to the main road on the opposite side to the driving side, switch to the outside lane and then make a turn at the intersection to the main road on one side which is the same as the driving side, the vehicles on the secondary road then continue to move and make a "U" turn in the tunnel below the second and third elevated bridge, to an opposite external lane, and the vehicles on the "*" the secondary road then go directly on the main road.

2. A method for controlling the flow of traffic at an intersection of a main road comprising 5 multiple lanes in each direction, and a secondary road comprising multiple lanes in each direction; the method comprising the steps of: a. provide the intersection with an underground tunnel that extends in a direction parallel to the secondary road 10 and through the intersection of the secondary road with the main road, a second underground tunnel and a third underground tunnel constructed below the main road and in parallel with it, placed separately near the side of the first underground tunnel of the 15 secondary road; being provided two first islands to turn being in the secondary road to center "and to be placed over each entrance of the first underground tunnel, without interfering with the main road, and a second island to turn and a third island to 20 turn are provided on the main road, the second and third islands to turn are centered and placed above and between two entrances of the second underground tunnel and the third underground tunnel, respectively, and form a second island to turn and a third island 25 to turn. above the second and third underground tunnels, respectively; b. allow vehicles on the main road and on the secondary road to pass directly through the intersection, without interruption through the first, second and third tunnels 5 underground and make "U" turns through the first, second and third islands to turn, over the underground tunnels; c. allow vehicles on the main road and on the secondary road to make a turn towards an adjacent secondary road and 10 to an adjacent main road, respectively, on the same side of the driving side, changing from its lanes to an external lane long before making the turn; d. allow vehicles on the main road, wanting to turn the road 15 secondary on one side opposite the driver's side, change to 2 > an external lane and pass directly through the intersection, without having to pass through the second and third underground tunnels, vehicles on the main road then make a "U" turn in the second or 20 third islands to turn, over the second or third underground tunnels, towards an opposite outer lane, and then the vehicles on the main road make a turn at the intersection towards the secondary road on one side which is the same as the side of conduction; and e. 25 allow vehicles on the secondary road, which wish to turn onto the main road on a side opposite the driving side, into an external lane to then make a turn at the intersection to the main road on the side that is the same that the driving side, these vehicles on the secondary road then keep moving and make a "U" turn on the second or third islands to turn, over the second or third underground tunnels, towards the outer lane opposite, and then the vehicles in the 10 secondary road advance directly on the main road. fifteen # twenty 25 SUMMARY OF THE INVENTION Traffic guidance constructions at road intersections, to provide traffic flows thereof, and methods to control traffic with these traffic guidance constructions. The constructions mainly include elevated bridges and / or underground tunnels that extend parallel to the main road and one or more secondary roads that intersect with the main road, to cross the intersections of the same, in order to avoid traffic jams in the same. Vehicles can move on the main and secondary roads straight ahead, without interruption at intersections. Vehicles moving on the main and secondary roads can make turns on either side, using the tunnels under the elevated bridges or the islands to turn, over the underground tunnels, in order to avoid interference with the vehicles that move directly forward and causing any traffic jams at intersections. These traffic guidance constructions at road intersections do not need spacious terrain nor will they be affected by constructions around intersections and, therefore, are appropriate for topographies and different spaces in order to provide continuous traffic flows.