CN102122436A - Design method of urban highway with peak line - Google Patents

Abstract

The invention discloses a design method for a peak line of an urban highway. By adopting the method, the utilization rate of the highway can be effectively improved, and the problem of urban highway congestion can be well solved. The design method of the peak line mainly includes three parts: the setting of the peak line, the setting of road signs and the operation management of the peak line. Simply put, the peak line is on a peak-off road. One or even several traffic lanes that follow the peak direction (up or down) will regularly shift the separation line between the two directions. According to the actual driving situation, the Suifeng Line allocates the two-way road width according to the needs, so as to maximize the time traffic. In addition to the necessary notification signs, there is no need for road widening, road elevation, or under-road culvert construction. It only needs to shift the double yellow lines during off-peak periods to obtain a considerable amount of traffic.

Description

Design method of urban highway with peak line

technical field

The invention belongs to traffic science, and specifically relates to a design method for urban highway peak lines that plan vehicle traffic order, allocate two-way road surface width and number of traffic lanes as required, make full use of the operating potential of the existing road surface, and solve traffic jams.

Background technique

Urban road traffic congestion is a common social phenomenon. Congestion levels continue to rise as the private car becomes an integral part of people's lifestyles today. Especially in big cities, road traffic congestion has even become an urgent and difficult social problem.

Current status of pavement planning and design. A road is divided into left-bound (upbound) lanes and right-bound (downbound) lanes from the middle of equal width. As long as they are completed and opened to traffic, they will perform their respective traffic functions in each direction at all times and forever.

Analysis of highway traffic efficiency. Needless to say, the traffic volume of each road (left and right) is counted in units of time such as year, month, week, and day, and the utilization rate of each road is equal or basically equal. The larger the time unit, the more equal the traffic efficiency value is. However, if the time unit is narrowed down to morning, afternoon, when going to work, and when leaving get off work, the traffic volumes of the left and right lanes are very different, even multiple differences, showing an extremely unbalanced road utilization state.

The phenomenon of urban highway traffic congestion is brief. Regular congestion is not the same as roads; roads with large traffic volume and serious congestion are not congested all the time, and have their peak congestion periods and relatively normal periods every day; for a road, the left lane is congested within a certain time period , the right channel must also have another period of congestion, but when the congestion period of each side channel is different, there is a very strong rule to follow.

The social impact of urban traffic congestion cannot be ignored. First, it affects the quality of life. As a means of transportation, automobiles have greatly shortened time and space, and have also changed people's lifestyles. The phenomenon of traffic congestion causes a serious difference between the planned travel time and the actual time, which often causes accidents and work delays, and brings people's psychological restlessness, which seriously affects people's quality of life. At the same time, it affects economic development. Purchasing restrictions, time restrictions, and travel restrictions are helpless measures to solve traffic congestion, which not only hinders the process of people entering a modern society, but also runs counter to the economic development of society. Because the development of the automobile industry has led to the improvement of the overall level of the national economy and the development of related industries, the development of the automobile industry has effectively promoted the modernization of cities, promoted labor employment, and so on.

Contents of the invention

In order to overcome the above-mentioned disadvantages, the present invention provides a design method for urban highway peak lines, which can effectively improve the utilization rate of highways and solve the problem of urban highway congestion.

Enables the principle of following the peak line.

1. The principle of proceeding from reality. Proceeding from the reality of road congestion: Only roads with obvious slant front congestion are suitable for building peak lines. What kind of follow-up line should be built? The construction of several Suifeng lines must be combined with the reality of road width and traffic needs. In the driving with two lanes and several lines all the way, find a new balance point for the two-way driving demand and make the best use of the road.

2. The principles of simplicity, intuition, and ease of management. The establishment of the Suifeng line should be simple and intuitive for both the manager and the driving user, so as to facilitate driving and avoid the occurrence of erroneous entry and wrong driving. The functions that can be realized by simple methods should not be complicated. For example: establishing a constant-length peak-following line can solve the congested roads of the slant front, and there is no need to establish a period-following peak line; if the problem can be solved through a single type, there is no need to use a double type. It's the same in a city, if you can use one method to solve the problem, you don't need to use two methods, which will create a mental set for users, and they will follow the peak on whichever road they go.

3. The principle of safety. The establishment and use of the Suifeng line should take ensuring the safety of the use process as the top priority. It should be simple and intuitive, avoid unnecessary complications, and also: there are notifications, instructions, and prohibitions. There are hidden dangers of insecurity.

4. forward-looking principles. In the process of road construction, although there is no need to deal with the problem of slant front congestion at present, it is also necessary to consider leaving the foundation for rebuilding the peak line, such as the construction of road islands. In the process of rebuilding the Suifeng Road from an old road to a new one, if the current simple peak-successing scheme can solve the problem of congestion, it is also necessary to consider the more efficient peak-successing method that may be adopted in the future.

5. principles of modernization. Modernization has two meanings, namely, automation and informatization. Of course, it is worthwhile to increase manpower to solve traffic congestion, but it should be in line with the high standards of modern management, adopt modern management methods as much as possible, and reduce manpower participation. In the signal management of the Suifeng Line and the capture of online driving information, dynamic management information is added on the basis of static information. For example, if you enter the Suifeng Line by mistake in the reverse direction, there will be a flashing red light on the roadside ahead and a no-go signal notification. , so that the automatic management can achieve a high level of error-free error prevention and error correction. The establishment of the Suifeng Line may also arouse a new hot topic of traffic signal control. With the improvement of the level of automation and informatization, the utilization rate of urban traffic roads will be further improved, even to the extreme.

Technical scheme of the present invention is realized like this: the design method of city road with peak line, step is as follows:

Suifeng line marking setting: the Suifeng line is a lane in the central part of the highway with a variable driving direction, and the Suifeng line marking is a marking line set on both sides of the Suifeng line to separate two-way traffic. The marking line of the following peak line is filled with a white dotted line in the middle of the double yellow line;

Highway sign setting: set signs at the entrance and exit of each Suifeng line, and the signs indicate the time period of Suifeng line operation and the driving direction of vehicles on the Suifeng line;

Operation management of the Suifeng Line: before and after the Suifeng period, it is necessary to enter the steering buffer period. Vehicles that have not entered the Suifeng line are prohibited from entering this lane.

The peak-following line is a constant peak-following line, except that the steering buffer period is always in the peak-following period, and the constant peak-following line is uplink within a certain time range, and is downlink during the rest of the time.

The peak-following line is a peak-following line of a period, and the peak-following line of a period goes up or down with the peak in a certain period of time, and is normal at other times.

Several road post signal lights are set on the marking line of the peak line to inform the driving direction, and the road post signal lights are provided with face lights and backlights; the entrance and exit of the peak line are respectively installed with entrance signal lights and exit signal lights to inform the driving direction, and the entrance signal lights And the exit signal light is arranged on the top of the lane with the peak line, including a face light and a back light, the face light is a head-on light for changing the direction of travel of the rear vehicle, and the back light is a back light of the face light.

When a vehicle on the Suifeng line needs to change direction, both the face light and the back light of the Suifeng line entrance signal light will turn red, the surface light of the Suifeng line exit signal light will be green, and the back light will be red light, and the Suifeng line outer column signal light will turn red. The front lights and back lights are both red. Vehicles that have not entered the Suifeng line are prohibited from entering this lane. Vehicles that have been driving on this lane within the Suifeng line must merge into a lane with the same driving direction. When it is necessary to change direction After the vehicles in the driveway are cleaned up, they enter the peak-success period. The front light of the signal light at the entrance of the Suifeng Line is green and the back light is red. The front light of the signal light at the exit of the Suifeng Line is green and the back light is red. The front light is green, and the back light is red. When the follow-up period is over, it needs to enter the line-clearing period first. The control method is the same as when the follow-up line is enabled.

Induction signs are placed on both sides of the road at the entrance of the Suifeng Line to inform vehicles that they are about to enter the Suifeng Line.

The beneficial effect of the present invention is that: the following peak line allocates two-way road width according to the actual driving situation, and maximizes the time traffic volume. For the Suifeng line, it is the regular shift of the two-way traffic separation line, coupled with the necessary notification signs, so there is no need for road widening, road elevation, or under-road culvert construction, only the double yellow line needs to be shifted during off-peak periods You can get a considerable amount of traffic.

Description of drawings

Figure 1 is a schematic diagram of the road surface when the peak line goes up and the peak is constantly followed.

Fig. 2 is a schematic diagram of the road surface when the constant follow-peak line descends and follows the peak.

Fig. 3 is a schematic diagram of the road surface when driving along the peak line during the period.

Figure 4 is a schematic diagram of the road surface when the peak line goes up with the peak during the period.

Figure 5 is a schematic diagram of the road surface when the peak line descends with the peak during the period.

Fig. 6 is a schematic diagram of the road surface when the compound follow-the-peak line A line goes up the follow-peak, B line and C line conventionally.

Fig. 7 is a schematic diagram of the road surface when the compound peak line A goes up with the peak and C goes up with the peak.

Fig. 8 is a schematic diagram of the road surface when the A line of the compound Suifeng line goes down with the peak, and the B line goes down with the peak.

Figure 9 is the induction flag.

Figure 10 is the identification of the time-dependent peak line A.

Figure 11 is the constant peak-following line identification.

Figure 12 is the B-line identification of the time-dependent peak line.

Detailed ways

The present invention will be further explained below in conjunction with accompanying drawing.

Example 1 follows the peak line constantly.

As shown in Figures 1 and 2, the entire highway has 6 lanes, of which the two lanes in the center of the highway are the peak-sui lines, and the peak-sui line marking line 1 is a marking line set on both sides of the peak line to separate two-way traffic , the marking line 1 of the following peak line is filled with a white dotted line in the middle of the double yellow lines.

The constant peak-following line is the lane that is always in the peak-following period except for the turning buffer period, that is, the peak-following line is not uplink following the peak (as shown in Figure 1) or downlink following the peak (as shown in Figure 2).

There are 2 peak-following line markings in total. When going up following the peak, the white dotted line in the peak-following line marking on the right has the same effect as the white dotted line separating the traffic lanes, and the double yellow lines have no effect; the peak-following line marking on the right The double yellow lines in the vehicle are used to separate the driving direction of the left and right two-way traffic, and its function is equivalent to all the functions of the double yellow lines. The change of the marking function of the follow-peak line is notified by the time mark, direction mark and signal indicator light on the follow-peak line.

Signs are set at the entrance and exit of each peak-suiping line (as shown in Figure 11), indicating that during the time period of 00:00-12:00, vehicles go down following the peak; during the time period of 12:00-24:00, vehicles Go up with the peak.

Induction signs are set up on the road next to the entrance of the Suifeng Line and the exit of the Suifeng Line to remind drivers that they are about to enter the Suifeng Line lane. The style of the guidance signs is shown in Figure 9.

Operation management of the Suifeng Line: during the time period from 00:00 to 12:00, the direction of the Suifeng Line is down, as shown in Figure 2. From 00:00 onwards, vehicles that have not entered the Suifeng line are prohibited from entering this lane, and uplink vehicles that have already traveled within the Suifeng line must be merged into the right lane according to the camera, and enter the downlink following the peak period after the vehicles are cleared; During the peak season, the vehicles on the peak line go down; during the time period from 12:00 to 24:00, the traffic direction of the peak line is up, as shown in Figure 1, starting from 12:00, it does not enter the peak line Vehicles are prohibited from entering this lane, and downlink vehicles that have been traveling within the peak-sui line must be merged into the left lane.

A number of road post signal lights 2 are installed on the marking line 1 of the Suifeng line to inform the driving direction. 3 and exit signal lamp 4 are located at just above the peak line lane, and comprise face light and back light, and described face light is the head-on light that changes direction of rear vehicle, and described back light is the backlight of face light.

When the vehicle in the Suifeng line needs to change direction, the surface light and the back light of the Suifeng line entrance signal light 3 all turn red, the surface light of the Suifeng line exit signal light 4 is a green light, and the back light is a red light, and the road post signal light 2 The front lights and back lights are all red. Vehicles that have not entered the Suifeng line are prohibited from entering this lane. Vehicles that have been driving on the Suifeng line must merge into the lane with the same driving direction. When the vehicles in the Suifeng line are cleared After the completion, enter the follow-peak period, the surface light of the signal light 3 at the entrance of the Suifeng line is green, the back light is red, the surface light of the exit signal light 4 of the Suifeng line is green, the back light is red, and the surface light of the post signal light 2 Green light, back light is red light.

Embodiment 2 period follows the peak line.

As shown in Figures 3-5, the entire highway has 6 lanes, of which the 2 lanes in the center of the highway have 2 peak-suiping lines, the peak-suiping line A and the peak-suiping line B, and the marking line 1 of the peaking line On both sides of the follow-peak line, there are marking lines separating two-way traffic. The follow-peak line marking line 1 is filled with a white dotted line in the middle of the double yellow lines. The period-following peak line goes up or down with the peak in a certain period of time, and it goes in a normal direction at other times.

Figure 3 is a schematic diagram of the road surface when driving along the peak line during the period. At this time, the line A goes up with the peak line and the line B goes down with the peak line. Each Suifeng line entrance and Suifeng line exit is provided with a sign. Figure 10 is the sign of Suifeng line A, and Figure 12 is the sign of Suifeng line B. Go down with the peak (as shown in Figure 5), and follow the normal direction during the rest of the time, that is, go up with the peak; during the time period from 15:00 to 20:00, follow the peak line B to go up with the peak (as shown in Figure 4), and follow the routine for the rest of the time The direction of travel is to go down with the peak. The operation management mode is the same as that in Embodiment 1.

Embodiment 3 compound follow peak line.

As shown in Figures 6-8, the entire highway has 9 lanes, of which the 3 lanes in the center of the highway are equipped with 3 peak-sui lines, the peak-sui line A line, the peak line B line and the peak line C line, and the peak line line C. Line A is a constant peak-following line, peak-following line B and peak-following line C are period-following peak lines. The compound follow-up line is nested with the constant follow-up line and the period follow-up line, and its operation and management mode is the same as when it is used alone.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.

Claims (5)

1. The design method of urban highway with peak line is characterized in that: the steps are as follows: Suifeng line marking setting: the Suifeng line is a lane in the central part of the highway with a variable driving direction, and the Suifeng line marking is a marking line set on both sides of the Suifeng line to separate two-way traffic. The marking line of the following peak line is filled with a white dotted line in the middle of the double yellow line; Highway sign setting: set signs at the entrance and exit of each Suifeng line, and the signs indicate the time period of Suifeng line operation and the driving direction of vehicles on the Suifeng line; Operation management of the Suifeng Line: before and after the Suifeng period, it is necessary to enter the steering buffer period. Vehicles that have not entered the Suifeng line are prohibited from entering this lane. 2. The design method of the urban highway according to claim 1, characterized in that: the peak-following line is a constant peak-following line, except that the buffer period is always in the peak-following period, and the constant peak-following The line goes up with the peak within a certain time range, and goes down with the peak in the rest of the time. 3. The design method of the urban highway peak line according to claim 1, characterized in that: the peak line is a peak line in a period, and the peak line in a certain period goes up or down with the peak in a certain period of time , the rest of the time is the regular direction. 4. the design method of urban highway according to claim 1 with the peak line, it is characterized in that: several road post signal lights are set on the described line with peak line marking to inform the driving direction, and the road post signal lights are provided with face lights and backlights The entrance and exit of the Suifeng line are equipped with entrance signal lights and exit signal lights respectively to inform the driving direction. The head-on light in the direction of vehicle travel, the back light is the back light of the front light; When a vehicle on the Suifeng line needs to change direction, both the face light and the back light of the Suifeng line entrance signal light will turn red, the surface light of the Suifeng line exit signal light will be green, and the back light will be red light, and the Suifeng line outer column signal light will turn red. The front lights and back lights are both red. Vehicles that have not entered the Suifeng line are prohibited from entering this lane. Vehicles that have been driving on this lane within the Suifeng line must merge into a lane with the same driving direction. When it is necessary to change direction After the vehicles in the lane are cleaned up, they enter the peak-success period. The front light of the signal light at the entrance of the Suifeng Line is green and the back light is red. The front light of the signal light at the exit of the Suifeng Line is green and the back light is red. The front light is green, and the back light is red. When the follow-up period is over, it needs to enter the line-clearing period first. The control method is the same as when the follow-up line is enabled. 5. The design method of the Suifeng line of urban highway according to claim 2 or 3, characterized in that: the both sides of the highway at the entrance of the Suifeng line place guiding signs to inform vehicles that they are about to enter the Suifeng line.

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