JPH10212900A - Road-tunnel ventilation controller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To maintain the polluted state of air in a tunnel with a crossroad and a junction excellently, and to operate ventilation facilities accurately. SOLUTION: In a wind-direction anemometer 3 in a junction tunnel, wind velocity Vr3 in the junction tunnel is measured, and a measured signal is output to a jet-fan operation-number arithmetic means 5 through a switch 7. The arithmetic means 5 checks wind velocity Vr3, a jet-fan operation-number command value NJF* is increased by ΔNJF (number) from a current value when the value of the Vr3 is made lower than a preset value Vr3L, and the value NJF* reduced by ΔNIF (number) from the current value is output to a jet-fan driving device 6 as a new command value when the value of the Vr3 exceeds a preset value Vr3U. When the wind-direction anemometer 3 in the junction tunnel cannot be used by trouble, etc., the switch 7 is turned off and a switch 8 is turned on, and the arithmetic means 5 arithmetically operates the number of jet fans operated by using the arithmetic result of a wind-direction wind-velocity arithmetic means 4 in the junction tunnel.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation control system for a road tunnel having a junction and a junction.

[0002]

2. Description of the Related Art In a road tunnel, ventilation equipment such as a ventilator or a jet fan is installed in accordance with the size of the tunnel, using a blower and an exhauster to ventilate through a tunnel duct for both air supply and exhaust. By operating these ventilation systems as needed, the concentration of pollutants (smoke, carbon monoxide, etc.) in the tunnel is maintained below acceptable levels.

[0003] It is necessary to control the operating air volume of the ventilator so that the concentration at the point where the concentration of the pollutant is highest in the road tunnel is below the allowable level. Further, the wind speed in the road tunnel also has a spatial distribution and varies depending on the traffic volume, the running speed of the vehicle, the operating air volume of the ventilator, and the like.
In controlling the ventilation state in the tunnel, a method is used to control the operating air flow rate and the number of operating ventilators according to the output of the pollution concentration meter installed in the tunnel or the traffic volume passing through the tunnel. Have been.

[0004]

A conventional road tunnel for a vehicle generally has no branching or merging between the entrance and the exit of the tunnel, and such a tunnel is ventilated by the above-described method. There was no particular problem with the control. However, recently, in order to make effective use of underground airspace in metropolitan areas, attention has been paid to tunnels that have junctions or confluences in the middle of the tunnel. If the method was applied as it was, it was impossible to perform effective ventilation control.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a road tunnel ventilation control capable of properly maintaining the state of contamination of air in a tunnel having a junction and a junction and enabling proper operation of ventilation equipment. It is intended to provide a device.

[0006]

Means for Solving the Problems As means for solving the above-mentioned problems, the invention according to claim 1 is based on a main line tunnel,
In a one-way road tunnel, which is composed of a branch tunnel and a merging tunnel, and a tunnel duct having a large number of air inlets and outlets is provided on the sides of these tunnels, at least one or more of the merging tunnels Based on the anemometer in the merging tunnel provided in the, based on the input of the measurement value from the anemometer in the merging tunnel,
Jet fan operating number calculating means for calculating the number of operating jet fans provided in the merging tunnel so that the wind in the merging tunnel is directed to the main tunnel,
It is characterized by having.

According to a second aspect of the present invention, there is provided a one-way tunnel comprising a main tunnel, a branch tunnel, and a merging tunnel, and a tunnel duct having a large number of air inlets and air outlets is provided at the side of each of the tunnels. In the road tunnel, the merging point upstream anemometer and the merging point downstream anemometer provided respectively on the merging point upstream side and the merging point downstream side on the main line tunnel, the merging point upstream anemometer and Based on the input of the measurement value from the downstream wind direction anemometer at the merging point, the wind direction in the merging tunnel calculating the wind direction in the merging tunnel, and the input of the calculated value from the wind direction in the merging tunnel And calculating the number of operating jet fans provided in the merging tunnel so that the wind in the merging tunnel is directed to the main tunnel. And Ttofan operation number calculation means, characterized by comprising a.

According to a third aspect of the present invention, there is provided a one-way tunnel comprising a main line tunnel, a branch tunnel, and a merging tunnel, and a tunnel duct having a large number of air inlets and outlets is provided at the side of each of the tunnels. In a road tunnel, a plurality of pollution concentration meters for measuring the concentration of pollution in the main line tunnel, and a main line for estimating a pollution concentration distribution in the main line tunnel based on input of measurement values from the plurality of pollution concentration meters. Based on the estimation results of the contamination concentration distribution estimation means in the tunnel and the contamination concentration distribution estimation means in the main line tunnel, the air volumes of a plurality of air inlets and exhaust ports provided inside the tunnel upstream of the main line tunnel are set to zero. The upstream natural ventilation length determining means for extracting a section in which natural ventilation is to be performed, and the conversion in the section extracted by the upstream natural ventilation length determining means are performed. Wherein the air volume is and a ventilating air amount adjusting device for adjusting the ventilation power to be zero.

The invention according to claim 4 is the invention according to claim 3, wherein the upstream natural ventilation length determining means is replaced with
A main line for extracting a section in the middle part of the main line tunnel in which the air volume of a plurality of air inlets and exhaust ports provided inside the tunnel is to be reduced based on the estimation result of the contamination concentration distribution estimating means in the main line tunnel. Tunnel middle ventilation air flow narrowing section determination means, wherein the ventilation air volume adjustment device performs adjustment to narrow down the ventilation air volume in the section extracted by the main line tunnel middle ventilation ventilation air volume narrowing section determination means by a predetermined amount, It is characterized by the following.

According to a fifth aspect of the present invention, there is provided a one-way tunnel comprising a main line tunnel, a branch tunnel, and a merging tunnel, and a tunnel duct having a large number of air inlets and exhaust ports is provided on the sides of these tunnels. In the road tunnel, the traffic per unit time flowing into the main tunnel is measured based on the measurement result of the main tunnel inflow traffic measuring device for measuring the traffic flowing into the main tunnel. A main line tunnel inflow traffic volume transition pattern creating means for creating a time-series traffic volume transition pattern; a branch tunnel outflow traffic volume measuring device for measuring traffic volume flowing from the main line tunnel to each branch tunnel; A unit that flows out of the main line tunnel to each branch tunnel based on the measurement result of the traffic volume measurement device Branch tunnel outflow traffic volume transition pattern creating means for creating a time-series traffic volume per hour transition pattern, a merging tunnel inflow traffic volume measuring device for measuring the traffic volume flowing from each of the merging tunnels into the main tunnel, A merging tunnel inflow traffic volume transition pattern creating means for creating a time-series transition pattern of traffic volume per unit time flowing into the main tunnel from each merging tunnel based on the measurement result of the merging tunnel inflow traffic measuring device; Based on the input of pattern signals from the main line tunnel inflow traffic transition pattern creating means, the branch tunnel outflow traffic transition pattern creating means, and the merging tunnel inflow traffic transition pattern creating means, the traffic volume of each section in the main line tunnel is calculated. The traffic calculation device for each section in the main tunnel to be calculated and the traffic for each section in the main tunnel Based on the calculation result of the arithmetic unit, characterized in that and a ventilation air volume adjusting unit for controlling the ventilation power of said main tunnel.

According to a sixth aspect of the present invention, in accordance with the fifth aspect of the present invention, there is provided an apparatus for measuring a traveling speed of a vehicle flowing into the main line tunnel, and a measuring device for measuring the traveling speed of the vehicle flowing into the main line tunnel. Based on the measurement results of the device, a main line tunnel inflow vehicle traveling speed transition pattern creating means for creating a time-series transition pattern of a traveling speed of a vehicle flowing into the main line tunnel, and outflow from the main line tunnel to each branch tunnel. A branch tunnel outflow vehicle traveling speed measuring device for measuring the traveling speed of the vehicle,
Means for generating a time-series transition pattern of a traveling speed of a vehicle flowing out of the main line tunnel into each of the branch tunnels based on a measurement result of the branch tunnel outflow vehicle traveling speed measuring device; And, based on the measurement results of the merging tunnel inflow vehicle traveling speed measuring device that measures the traveling speed of the vehicle that flows into the main tunnel from each of the merging tunnels, based on the measurement results of the merging tunnel inflow vehicle traveling speed measuring device, A traveling speed transition pattern creating means for creating a time-series transition pattern of traveling speed of a vehicle flowing into the main line tunnel; and Traffic volume transition pattern creation means, branch tunnel outflow traffic volume transition pattern creation means, merging Input of each pattern signal from the tunnel inflow traffic volume transition pattern creating means, the main line tunnel inflow vehicle traveling speed transition pattern creating means, the branch tunnel outflow vehicle traveling speed transition pattern creating means, the merging tunnel inflow vehicle traveling speed transition pattern creating means On the basis of,
The traffic volume of each section in the main line tunnel is calculated.

According to a seventh aspect of the present invention, there is provided a one-way tunnel comprising a main tunnel, a branch tunnel, and a merging tunnel, and a tunnel duct having a large number of air inlets and outlets is installed on the sides of these tunnels. In the road tunnel, the branch tunnel outflow traffic volume measuring device that measures the traffic volume flowing out of the main line tunnel to each branch tunnel, and based on the measurement result of the branch tunnel outflow traffic volume measuring device, A branch tunnel outflow traffic transition pattern creating means for creating a time-series transition pattern of traffic flow per unit flowing into the tunnel;
Based on an input of a pattern signal from the branch tunnel outflow traffic volume transition pattern creating means, a traffic volume calculation means in the branch tunnel that calculates the traffic volume in the branch tunnel,
Based on the input of the main line tunnel junction concentration meter provided in the vicinity of the branch in the main tunnel, the calculation result of the traffic volume calculation means in the branch tunnel and the measurement value of the main line tunnel junction concentration meter. A ventilation air volume adjusting device for adjusting the ventilation air volume in each branch tunnel.

The invention according to claim 8 comprises a main tunnel, a branch tunnel, and a merging tunnel, and a one-way tunnel in which a tunnel duct having a large number of air inlets and exhaust outlets is installed in the side of these tunnels. In the road tunnel, based on the input of the measurement value of the exit side anemometer in the main line tunnel provided near the exit in the tunnel of the main line, and the amount of air flow in the tunnel of the main line, An airflow / exhaust air unbalance section determining means in the main line tunnel that determines an unbalanced operation in which the relationship with the exhaust air amount is unbalanced, and an airflow / exhaust air unbalance section determining means in the main line tunnel based on the determination. And a ventilation air volume adjusting device for controlling the ventilation air volume in each section of the main line tunnel.

According to a ninth aspect of the present invention, there is provided a one-way tunnel comprising a main tunnel, a branch tunnel, and a merging tunnel, and a tunnel duct having a large number of air inlets and outlets is provided on the sides of these tunnels. In the road tunnel, the main line tunnel inflow traffic measuring device for measuring the traffic flowing into the main line tunnel, the traffic volume averaging processing means for averaging the output from the main line tunnel inflow traffic measuring device, the main line A main line tunnel inflow vehicle traveling speed measuring device for measuring a traveling speed of a vehicle flowing into the tunnel; a traveling speed averaging processing means for averaging an output from the main line tunnel inflow vehicle traveling speed measuring device; The contamination concentration meter at the most upstream section of the main line tunnel provided in the most upstream section, and the pollution concentration meter at the most upstream section of the main line tunnel. Pollution level averaging processing means for averaging the output of the vehicle, and pollutant generation in the uppermost stream section in the main line tunnel based on the outputs from the traffic volume averaging processing means and the traveling speed averaging processing means. A pollutant generation amount calculating means for calculating the amount using a predetermined calculation formula having a correction coefficient; and, based on outputs from the pollutant generation amount calculation means and the wind direction / wind speed averaging processing means, the inside of the main tunnel. Means for calculating the pollution concentration distribution in the length direction of the most upstream section of the main line tunnel, the output of the pollution concentration distribution calculating means for the most upstream section of the main line tunnel, and the averaging of the pollution concentration. A contamination generation amount calculating formula correction means for correcting a correction coefficient of the predetermined arithmetic expression used by the contaminant generation amount calculating unit based on a comparison with an output from a processing unit; Characterized by comprising a and.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of the first exemplary embodiment of the present invention. As shown in FIG.
The embodiment of the present invention comprises a merging point upstream anemometer 1 provided on the upstream side of the merging point in the main line tunnel, a merging point downstream anemometer 2 provided on the downstream side of the merging tunnel in the main line tunnel, It comprises an anemometer 3 in the merging tunnel provided in the tunnel, a wind direction / wind speed calculating means 4 in the merging tunnel, a jet fan operating number calculating means 5, a jet fan driving device 6, and switches 7,8. ing. Normally, the switch 7 is turned on and the switch 8 is turned off. However, when the anemometer 3 in the junction tunnel is disabled due to a failure or the like, the switch 8 is turned on and the switch 7 is turned off.

FIG. 14 is a schematic diagram of a target tunnel according to the first embodiment. In the example of this figure, sections 1, 2 and 3 form a main tunnel and subsection 1
Form a branch tunnel, and subsection 2 forms a merge tunnel.

FIG. 15 is an explanatory view showing the arrangement of the ventilation equipment of the tunnel shown in FIG. In the example of FIG.
It is assumed that air is supplied and exhausted through a large number of air inlets and outlets (points corresponding to arrows in the figure) provided in the tunnel duct. Then, the amount of air blown and the amount of air blown when performing air supply and exhaust are variable, and the normal ventilation direction is a direction from section 1 to section 3 in FIG.

Next, the operation of the first embodiment configured as described above will be described. The wind tunnel anemometer 3 in the junction tunnel measures the wind speed Vr3 in the junction tunnel, and outputs a measurement signal to the jet fan operating number calculation means 5 via the switch 7. Jet fan operating number calculation means 5
Checks the wind speed Vr3 in the confluence tunnel,
If the value of r3 is below the preset value Vr3L,
Set the command value of the number of jet fans operated to △ NJF
The value NJF * increased by (unit) is output to the jet fan driving device 6 as a new jet fan operating number command value. Also, if the value of Vr3 is a predetermined value V
If it exceeds r3U, the value NJF * is the command value of the number of jet fan operation units reduced by △ NJF (unit) from the current value.
Is output to the jet fan drive device 6 as a new jet fan operating number command value.

The jet fan drive unit 6 changes the number of jet fans operated based on the input of the command value NJF *. In addition, the number of the anemometers 3 in the merging tunnel installed in the merging tunnel can be set to one or more arbitrary numbers according to the length and shape of the tunnel.

If the anemometer 3 in the confluence tunnel is disabled due to a failure or the like, the switch 7 is turned off and the switch 8 is turned on as described above, and The number of operating jet fans is calculated using the calculation result of the wind direction / wind speed calculation means 4 in the tunnel. That is, the merging point upstream wind direction anemometer 1 and the merging point downstream wind direction anemometer 2 respectively measure wind speeds Vr1 and Vr2 in the main line tunnel, and output the measurement signals to the merging tunnel inside wind direction and wind speed calculating means 4. Then, the merging tunnel inside wind direction / wind speed calculating means 4 calculates the wind speed Vr3 in the merging tunnel by substituting these measured values into the following equation (1) which is established by the air volume balance at the merging point. Regarding the positive and negative wind speeds, the direction of the arrow in FIG. 14 is the positive direction.

Vr3 = (Ar2 · Vr2−Ar1 · Vr1) / Ar3 (1) where, Ar1: cross-sectional area of the main line tunnel upstream of the junction (m2) Ar2: cross-sectional area of the main line downstream of the junction point (m2) Ar3: Cross-section area of the merging tunnel (m2) Vr1: Wind speed in the main line tunnel upstream of the merging point (m / s) Vr2: Wind speed in the main line tunnel downstream of the merging point (m / s) Vr3: Wind speed in the merging tunnel Wind speed (m / s). The jet fan operating number calculating means 5 generates NJF * using the Vr3 thus calculated by the merging tunnel inside wind direction and wind speed calculating means 4 and outputs it to the jet fan driving device 6 as described above. .

FIG. 2 is an explanatory diagram showing the flow of air in the main tunnel and the merging tunnel. If the wind in the merging tunnel flows on the opposite side to the branching direction, the contaminated air near the merging point in the main tunnel will flow into the merging tunnel. However, according to the above-described first embodiment, fresh air outside the entrance of the merging tunnel is always taken into the main tunnel, which is effective in lowering the contamination concentration of the main tunnel, and also reduces the contamination concentration of the merging tunnel itself. Can also be kept low.

In the first embodiment described above, the means for calculating the number of operating jet fans 5 uses the switches 7 and 8 to output signals from both the anemometer 3 in the merging tunnel and the wind direction / wind speed calculating means 4 in the merging tunnel. Although it is configured to allow input, the configuration shown in FIG. 1 does not include the upstream anemometer 1 at the junction, the downstream anemometer 2 at the junction, the wind direction / wind speed calculating means 4 in the junction tunnel, and the switches 7 and 8. The configuration or the configuration shown in FIG. 1 may be such that the anemometer 3 and the switches 7 and 8 in the junction tunnel are deleted.

FIG. 3 is a block diagram showing the configuration of the second embodiment of the present invention. As shown in this figure, the second embodiment has a plurality of pollution concentration meters 9a, 9b... For measuring the pollution concentration in the main tunnel, and a pollution concentration distribution in the main tunnel for estimating the pollution concentration distribution in the main tunnel. Estimating means 10
And the upstream natural ventilation section that determines the length of the natural ventilation section upstream of the main tunnel (a section in which the airflow at the plurality of air inlets and exhaust ports provided inside the tunnel without operating the ventilator is zero). Ventilation length determining means 11 and ventilation air volume adjusting device 1
2 and a ventilator drive 13.

Next, the operation of the second embodiment will be described. When a measurement signal is input from each of the plurality of pollution concentration meters 9a, 9b,..., The contamination concentration distribution estimation means 10 in the main line tunnel estimates a rough distribution of the contamination concentration over the length direction of the main line tunnel based on the measurement signals. . Specifically, the above distribution is estimated based on a characteristic diagram obtained by plotting output values of the respective pollution concentration meters with the horizontal axis representing the position in the main line tunnel and the vertical axis representing the contamination concentration.

In response to the distribution estimated in this way,
The upstream natural ventilation length determining means 11 extracts an upstream section in which the value obtained by the estimated distribution is lower than the allowable concentration by a certain level or more. In response to the extraction result, the ventilation air volume adjusting device 12 outputs to the ventilator driving device 13 a command to set the ventilation air volume for the extraction section to zero. The ventilator drive device 13 changes the ventilator operation stop section on the upstream side of the main line tunnel based on this command.

According to the second embodiment, in a section where only fresh air flowing from the upstream entrance of the main line tunnel can be used, useless ventilator operation can be avoided, and the power required for ventilator operation can be greatly reduced. Can be reduced.

FIG. 4 is a block diagram showing the configuration of the third embodiment of the present invention. The configuration of FIG. 4 is provided with a main line tunnel middle section ventilation air volume narrowing section determining section 14 for narrowing the ventilation air volume in the middle section of the main tunnel, instead of the upstream natural ventilation length determining section 11 in FIG. is there. Here, the ventilation air volume narrowing section is a section in which the ventilation air volume is suppressed more than other sections.

Next, the operation of the third embodiment will be described. As in the case of the second embodiment, the contamination concentration distribution estimating means 10 in the main line tunnel includes a plurality of contamination concentration meters 9a, 9
When a measurement signal is input from each of b, a rough distribution of the contamination concentration is estimated over the length direction of the main tunnel based on the measurement signal. Specifically, the above distribution is estimated based on a characteristic diagram obtained by plotting output values of the respective pollution concentration meters with the horizontal axis representing the position in the main line tunnel and the vertical axis representing the contamination concentration.

In response to the distribution estimated in this way,
Ventilation air volume narrowing section determination means 14 in the middle of main line tunnel
Then, an upstream section in which the value obtained by the estimated distribution is lower than the allowable density by a certain level or more is extracted. In response to the extraction result, the ventilation air volume adjusting device 12 adjusts the ventilation air volume (blowing volume and exhaust volume) for the extraction section.
Is output to the ventilator drive device 13. The ventilator drive device 13 changes the ventilation air volume during the operation of the ventilator in the daytime part of the main line tunnel based on this command.

Next, the effects of the second and third embodiments will be specifically described. FIG. 5 is a schematic view of a tunnel to which the second and third embodiments are applied. This tunnel is a 10000 m long one-way tunnel having three branch tunnels and three merging tunnels as shown.

FIGS. 6 and 7 are characteristic diagrams obtained by simulating the effects of the second and third embodiments. In this characteristic diagram, the VI value (visi) generally used as an index indicating the state of contamination in the tunnel is shown.
(Bilty) in the main line tunnel extension direction. The VI value is a value representing the degree of visibility of the air in the tunnel. 0% represents a state in which the air is contaminated with soot and has no visibility, and 100% represents a state in which the air is not contaminated at all and is transparent. . Ventilation facilities (exhaust fan, blower) as shown in Fig. 15 over the main line tunnel
Shall be installed.

In the graphs of FIGS. 6 and 7, the portion where the VI value rises in a stepwise manner indicates that the fresh air is introduced from the outside at the confluence to improve the air permeability. . Further, in the graph, a section in which the VI value rises to the right (a section in which the transparency in the tunnel gradually improves as it goes downstream) and a section in which the VI value falls to the right (as the visibility in the tunnel goes downstream). Section that gradually worsens). Whether the vehicle goes upward or downward depends on the balance between the amount of smoke generated from the passing vehicle and the ventilation effect of the ventilation equipment.

FIG. 6 showing a simulation example according to the second embodiment compares the following two cases, Case 1 and Case 2.

Case 1: A case where the air volume of the exhaust fan and the air blower is set to 80% of the rated air volume over the entire main line tunnel.

Case 2: Main line tunnel entrance (position 0)
m), natural ventilation (exhaust fan and blower is stopped) only in the section at 1080 m from position
When the air volume is 0%.

Normally, if the VI value is maintained at 60% or more,
It is considered sufficient as a safe driving environment for passing vehicles. According to the simulation results, for some sections on the upstream side, ventilator is not always operated and natural ventilation is applied as / V
It is shown that the I value can be maintained at 60% or more. As described above, it can be understood that use of the second embodiment can suppress useless operation of the ventilator in maintaining a safe traveling environment of the passing vehicle, and can achieve reduction in required power. . On the other hand, FIG. 7 showing a simulation example according to the third embodiment is a comparison of the following two cases, Case 1 and Case 3.

Case 1: A case where the air volume of the exhaust fan and the air blower is set to 80% of the rated air volume over the entire main line tunnel.

Case 3: Main Line Tunnel 2730m
In the case where the airflow is set to 40% only in the section at the position 5330m from the, and the airflow is set to 80% in the other sections as in the case 1.

According to the simulation results, it is not always necessary to increase the air volume of the ventilator to 80% for a part of the middle section of the main line tunnel, and the VI value is maintained at 60% or more even when the air volume is reduced to 40%. We can see that we can do it. By narrowing the ventilation air volume in the middle of the main line tunnel shown in the third embodiment in this way, it is possible to suppress unnecessary operation of the ventilator in maintaining a safe driving environment of the passing vehicle, and to reduce the required power. It can be seen that it can be realized.

FIG. 8 is a block diagram showing the configuration of the fourth embodiment of the present invention. As shown in this figure, in the fourth embodiment, a main line tunnel inflow traffic volume measuring device 15 that measures the traffic volume flowing into the main line tunnel, and a traffic volume per unit time flowing into the main line tunnel based on the measurement result are shown. A main line tunnel inflow traffic volume transition pattern creating means 16 for creating a time-series transition pattern, a branch tunnel outflow traffic volume measuring device 17 for measuring the traffic volume flowing out of the main line tunnel to the branch tunnel, and a main line based on the measurement result. A branch tunnel outflow traffic volume transition pattern creating means 18 for creating a time-series transition pattern of traffic volume per unit time flowing out of the tunnel to the junction tunnel, and a junction tunnel inflow for measuring the traffic volume flowing from the junction tunnel to the main line tunnel. Based on the traffic measurement device 19, the traffic flowing from the merging tunnel to the main tunnel And merging tunnel inflow traffic transition pattern creating means 20 for creating a time-series transition pattern hourly traffic, said means 16,
The traffic flow calculating device 21 for calculating the traffic volume of each section in the main line tunnel based on the input of the pattern signals from 18, 18 and the main line tunnel, the ventilation air volume adjusting device 12, and the ventilator driving device 13 It is configured. It is assumed that the traffic volume measured by each of the measuring devices 15, 17, and 19 is measured for each of large vehicles and small vehicles, and further for each of up and down lines.

Next, the operation of the fourth embodiment will be described. The traffic volume transition pattern creating means 16, 18, and 20 statistically create a temporal transition pattern of each traffic volume based on the measurement signals from the measuring devices 15, 17, and 19. Specifically, the output data of the measuring device over the past several tens of days is accumulated, and this is averaged to create a temporal transition pattern of each traffic volume on the day.

The traffic volume calculation device 21 in each section of the main line tunnel
Fetches pattern signals from the traffic volume transition pattern creating means 16, 18, and 20, and calculates the traffic volume of each section shown in FIG. Specifically, the traffic volume in section 1 is based on the main line tunnel inflow traffic volume transition pattern creation means 1
6 as an output. The traffic volume of the section 2 is obtained by subtracting the output of the branch tunnel outflow traffic volume transition pattern creation unit 18 from the output of the main line tunnel inflow traffic volume transition pattern creation unit 16. further,
By adding the output of the merged tunnel inflow traffic volume transition pattern creating means 20 to this result, the traffic volume of section 3 is obtained.

The ventilation air volume adjusting device 12 receives the output from the traffic volume computing device 21 in each section in the main line tunnel, and outputs the ventilation air volume (from each duct in FIG. 15) in each section of the main line tunnel according to the traffic load of each section. Command values for the air blowing amount and the exhaust air amount. The ventilator driving device 13 corrects the ventilation air volume in each section of the main line tunnel according to the command value.

According to the fourth embodiment, it becomes possible to set the ventilation air flow according to the traffic load of each section in the main line tunnel in which branching and merging are repeated, thereby reducing the required power of the ventilator. It can contribute to the conversion.

FIG. 9 is a block diagram showing the configuration of the fifth embodiment of the present invention. The configuration shown in FIG. 9 is different from the configuration shown in FIG. 8 in that a traveling speed measuring device 23 for measuring the traveling speed of the vehicle flowing into the main line tunnel and a traveling of the vehicle flowing into the main line tunnel based on the measurement result are provided. A main line tunnel entering vehicle traveling speed transition pattern creating means 24 for creating a time-series transition pattern of speed, a branch tunnel outgoing vehicle traveling speed measuring device 25 for measuring a traveling speed of a vehicle flowing out of the main line tunnel to the branch tunnel, A branch tunnel outflow vehicle traveling speed transition pattern creating means 26 for creating a time-series transition pattern of the traveling speed of the vehicle flowing out of the main line tunnel to each branch tunnel based on the measurement result, and flowing into the main line tunnel from the merging tunnel. A vehicle traveling speed measuring device 27 for measuring the traveling speed of the vehicle, based on the measurement result; And merging the tunnel inlet vehicle traveling speed transition pattern creating means 28 for creating a time-series transition patterns of running speed of the vehicle entering the main tunnel from the merging tunnel Te, is obtained by adding a.

Next, the operation of the fifth embodiment will be described. As in the case of the fourth embodiment, the traffic volume measuring device 1
5, 17, and 19 measure the traffic volume of each tunnel, and the traffic volume transition pattern creation means 16, 18, and 20 create each traffic volume transition pattern based on these measurement results.

Further, the vehicle traveling speed measuring devices 23 and 2
5 and 27 measure the traveling speed of the vehicle in each tunnel, and the traveling speed transition pattern creating means 24, 26 and 28 create each traveling speed transition pattern based on the measurement results.

The traffic volume calculation device 22 in each section of the main line tunnel
Fetches each pattern signal from the traffic volume transition pattern creating means 16, 18, 20 and the vehicle traveling speed transition pattern creating means 24, 26, 28, and calculates the traffic volume and the vehicle traveling speed of each section.

The ventilation air volume adjusting device 12 receives the output from the traffic volume computing device 22 in each section in the main line tunnel, and according to the traffic volume load of each section (the traffic volume load considering the vehicle traveling speed). Ventilation air volume of each section (Fig. 15
Of the respective ducts). The ventilator driving device 13 corrects the ventilation air volume in each section of the main line tunnel according to the command value.

In the fifth embodiment, similar to the fourth embodiment, the ventilation air flow is set according to the traffic load in each section of the main line tunnel where branching and merging are repeated. Since the traveling speed of the vehicle is considered, the accuracy of estimating the traffic ventilation power is improved as compared with the fourth embodiment,
The ventilation air volume can be adjusted more accurately.

FIG. 10 is a block diagram showing the configuration of the sixth embodiment. As shown in this figure, in the sixth embodiment, the traffic flow measuring device 17 at the branch tunnel, the traffic volume transition pattern creating means 18 at the branch tunnel, the traffic calculation device 29 within the branch tunnel, and the branching of the main tunnel. It comprises a main line tunnel branch section contamination concentration meter 30, a ventilation air volume adjusting device 31, and a ventilator driving device 32 provided in the section.

Next, the operation of the sixth embodiment will be described. In the traffic volume transition pattern creating means 18, the measuring device 1
Based on the measurement signal from 7, a temporal transition pattern of each traffic volume is statistically created. Specifically, the output data of the measuring device over the past several tens of days is accumulated, and this is averaged to create a temporal transition pattern of each traffic volume on the day.

The intra-branch tunnel traffic volume calculating means 29 takes in the pattern signal output from the branch tunnel outflow traffic volume transition pattern creating means 18 and calculates the traffic volume in the bifurcated tunnel. On the other hand, the main line tunnel branch contamination concentration meter 30 measures the contamination concentration near the branch of the main line tunnel. The ventilation air volume adjusting device 31 receives the traffic volume calculated by the traffic volume calculating means 29 in the branch tunnel, and according to the pollution concentration measured by the main line tunnel branch portion pollution concentration meter 30,
The command value about the ventilation air volume in the branch tunnel is output. The ventilator drive device 32 corrects the ventilation air volume in the branch tunnel according to the command value.

According to the sixth embodiment, it becomes possible to set the ventilation air volume in the branch tunnel in accordance with the traffic load in the branch tunnel, which can contribute to a reduction in the power required for the ventilator.

FIG. 11 is a block diagram showing the configuration of the seventh embodiment. The present embodiment is intended to suppress the discharge of polluted air from the exit of the main tunnel in order to prevent environmental pollution around the tunnel. In the seventh embodiment, as shown in FIG. 11, the relationship between the air flow rate and the exhaust air volume in the main line tunnel and the wind direction anemometer 33 in the main line tunnel provided near the exit of the main line tunnel is unbalanced. It comprises an airflow / exhaust air imbalance section determining means 34 in the main line tunnel for determining a section for performing an unbalanced operation, a ventilation air volume adjusting device 12, and a ventilator driving device 13.

Next, the operation of the seventh embodiment will be described. The main wind tunnel exit side wind direction anemometer 33 measures the wind direction and wind speed at the main line tunnel exit, and outputs the measured value to the main line tunnel air flow / discharge imbalance section determination means 34. Here, regarding the sign of the wind direction and the wind speed, the wind speed value toward the exit side of the main line tunnel is defined as positive, and the wind speed value toward the opposite side is defined as negative. The airflow / exhaust air unbalance section determining means 34 in the main line tunnel outputs a different command to the ventilation air volume adjusting device 12 according to the sign of the wind speed value.

That is, if the sign of the measurement value from the main tunnel exit side anemometer 33 is positive (contaminated air is discharged from the tunnel exit), the air flow and exhaust air imbalance in the main line tunnel is unbalanced. The section determining means 34 outputs a command to lengthen a section in which the amount of exhaust air is set to be larger than the amount of air blow in the vicinity of the exit in the main line tunnel in accordance with the absolute value of the measured value. At this time, a command to increase the value of the amount of exhaust air and decrease the value of the amount of air may be output together.

On the other hand, the anemometer 3 on the exit side in the tunnel in the main line
If the sign of the measurement value from Step 3 is negative (contaminated air is not exhausted from the tunnel exit), the airflow / exhaust air imbalance section determining means 34 in the main line tunnel determines the absolute value of this measurement value. In accordance with the size, a command is output to shorten the section in which the amount of exhaust air is set to be larger than the amount of air blow in the vicinity of the exit in the main line tunnel. At this time, a command to decrease the value of the amount of exhaust air and increase the value of the amount of air may be output together.

Then, the ventilation air volume adjusting device 12 outputs to the ventilator driving device 13 a command 76 for changing the balance between the exhaust air volume and the air ventilation volume near the main line tunnel exit.

According to the seventh embodiment, it is possible to adjust the balance between the amount of air blown and the amount of air exhausted in the tunnel of the main line so that the polluted air near the exit of the main line tunnel is not discharged out of the tunnel. In addition, it can contribute to prevention of environmental pollution around the tunnel.

FIG. 12 is a block diagram showing the configuration of the eighth embodiment. This embodiment is intended for automatic learning of a calculation model used for calculating a ventilation state of a tunnel having a branch and a junction, and in particular, it is possible to correct an equation for calculating an amount of pollutants generated from a passing vehicle. Is what you do. That is, in a tunnel having a branch and a junction, the pollution concentration distribution in the main tunnel shows a complicated shape due to the influence of the branch and the junction. However, for sections where natural ventilation is performed in the section from the tunnel entrance to the main line to the first branch point or junction, there is no influence of branching and merging and no effect from the tunnel duct, so the pollution concentration distribution has a simple shape. Become. Therefore, it is possible to check the accuracy of the contamination generation amount calculation formula from the actual data of this section and learn the calculation formula.

As shown in FIG. 12, in the eighth embodiment,
A main line tunnel inflow traffic volume measuring device 15, a traffic volume averaging processing unit 35, a main line tunnel inflow vehicle traveling speed measuring device 23, a traveling speed averaging processing unit 36, a main line tunnel uppermost upstream section wind direction anemometer 37; , Wind direction and wind speed averaging means 38, and a contamination concentration meter 39 at the uppermost stream section of the main line tunnel
, A pollutant concentration averaging means 40, a pollutant generation amount calculating means 41, a pollutant concentration distribution calculating means 42 at the uppermost stream section of the main line tunnel, and a pollution generation amount calculation formula correcting means 43.

Next, the operation of the eighth embodiment will be described. The traffic volume averaging means 35 performs an averaging process on the output of the main line tunnel inflow traffic measuring device 15 (calculation of the average value of the large-vehicle traffic volume and the small-vehicle traffic volume flowing into the main line tunnel for the last T minutes). Do. The traveling speed averaging means 36 performs an averaging process on the output of the vehicle traveling speed measuring device 23 entering the main line tunnel (calculation of an average value of vehicles flowing into the main line tunnel during the past T minutes). In the wind direction and wind speed averaging means 38, the most upstream section of the main line tunnel installed in the most upstream section of the main tunnel (a section in which natural ventilation is performed from the entrance of the main line to the first branch point or the junction). An averaging process (calculation of the average value of the output of the anemometer for the past T minutes) is performed on the output of the anemometer 37. The pollution concentration averaging processing means 40 averages the output of the pollution concentration meter 39 at the most upstream section of the main line tunnel installed in the most upstream section of the main line tunnel (calculates the average value of the output of the pollution concentration meter for the past T minutes). I do.

The pollutant generation amount calculation means 41 calculates the generation amount of the pollutant generated in the uppermost stream section of the main line tunnel based on the outputs from the traffic volume averaging processing means 35 and the traveling speed averaging processing means 36. I do. Here, the amount of pollutants generated per unit time in the uppermost section of the main line tunnel ト ン ネ ル
Is represented by a function form of the following equation (2).

Ξ = K · F (Y 1, Y 2, Y 3, Y 4) (2) where K: correction coefficient (normally 1.0) F: function of Y 1, Y 2, Y 3, Y 4 Y 1: main line tunnel Y2: Traffic volume of small vehicles flowing into the main line tunnel per unit time Y3: Traffic speed of vehicles flowing into the main line tunnel Y4: Slope in the tunnel

Then, the contamination concentration distribution calculating means 42 at the most upstream section of the main line tunnel calculates the contamination concentration distribution C (x) (x: position in the tunnel length direction) in the tunnel length direction at the most upstream section of the main line tunnel. This is output to the pollution generation amount calculation formula correcting means 43. Here, C (x) is: (a) the amount of pollutants generated in the uppermost stream section of the main line tunnel, which is output from the pollutant generation amount calculating means 41, and (b) the output, which is output from the wind direction and wind speed averaging processing means 38. It is obtained as a function of wind direction and wind speed at the most upstream section of the main tunnel.

The pollution generation amount calculation formula correcting means 43 receives the outputs from the pollution concentration distribution calculating means 42 and the pollution concentration averaging processing means 40 at the uppermost stream section of the main tunnel, and receives the following outputs (c) and (d). Compare.

(C) The contamination concentration corresponding to the installation position of the contamination concentration meter 39 among the contamination concentration distribution calculation results from the contamination concentration distribution calculating means 42. (d) The average value of the output of the contamination concentration meter 39. Is greater than the value of (d),
Since the calculation result of the equation (2) is larger than the actual result, the correction coefficient K of the equation (2) is reduced. on the other hand,
If the value of (c) is smaller than the value of (d), it means that the calculation result of the expression (2) is smaller than the actual value.
The correction coefficient K in the equation (2) is increased.

According to the eighth embodiment, the calculation formula of the pollutant generation amount can be automatically corrected from the actual data, so that the distribution of the pollution concentration in the tunnel can be accurately estimated. It becomes possible.

FIG. 13 is an explanatory diagram showing the effect of each of the above embodiments when viewed from the entire tunnel plant. In the above embodiments, the tunnel of FIG. 15 has been described as an example, but the same effect can be obtained even if the number of junctions and junctions in the tunnel is changed. As shown in FIG. 13, in the present invention, in a tunnel having a branch and a junction, efficient operation of the ventilator (reduction in required power) and stabilization of the ventilation state are performed over the entire line from the upstream side to the downstream side of the tunnel. Is being planned. At the same time, control of the surrounding environment is prevented, and control accuracy is improved by automatically learning a mathematical model used for ventilation control. Here, the specific effects of each embodiment are summarized as follows.

(1) According to the first embodiment, the wind speed in the junction tunnel is controlled so as to flow in the same direction as the traveling direction of the vehicle, thereby preventing the wind speed from reversing. This allows
Prevents sudden deterioration of the pollution concentration that occurs when the wind speed reverses,
The ventilation state is stabilized. At the same time, by taking in fresh air from the outside into the main tunnel through the merging tunnel, the pollution concentration in the main tunnel is improved,
It is possible to reduce the operation load of the ventilator (reduction of required power).

(2) According to the second embodiment, useless ventilation of the ventilator is prevented in some sections upstream of the main tunnel (introduction of natural ventilation). This allows
The ventilation effect (see FIG. 6) of the fresh air flowing in from the entrance of the main line tunnel can be maximized, and the operation load of the ventilator can be reduced (required electric power).

(3) According to the third embodiment, control is performed to narrow down the operating airflow of the ventilator in some sections of the middle section of the main line tunnel compared to other sections. In this way, it is possible to suppress the useless operation load of the ventilator (reduce the required electric power) in consideration of the distribution of the contamination concentration in the middle part of the main line tunnel (the distribution of VI values: see FIG. 7).

(4) According to the fourth and fifth embodiments, the ventilation air volume can be set in consideration of the traffic load on the entire tunnel including the junction and the junction. As a result, efficient operation (reduction of required power) of the ventilator can be performed in consideration of outflow / inflow of the vehicle at the junction and the junction.

(5) According to the sixth embodiment, it is possible to set the ventilation air volume in the branch tunnel. This allows
Even if the contaminated air in the main line tunnel flows into the branch tunnel, the air pollution concentration in the branch tunnel can be kept below an allowable value, and a safe driving environment can be maintained.
In addition, it is possible to set the air flow rate of the ventilator in the branch tunnel in consideration of the traffic load in the branch tunnel and the contamination status of the branch section of the main tunnel, thereby preventing excessive operation of the ventilator (reducing the required power). ) Can be achieved.

(6) According to the seventh embodiment, emission of contaminated air on the exit side of the main line tunnel is suppressed. This is effective in preventing pollution of the environment around the tunnel.

(7) According to the eighth embodiment, automatic learning of a pollution generation amount model is performed. As a result, the accuracy of estimation of the concentration distribution of contamination in the tunnel is improved. Therefore, in the fourth and fifth embodiments, it is possible to accurately set the ventilation airflow corresponding to the traffic load, and it is possible to prevent deterioration of the ventilation state in the tunnel and excessive operation of the ventilator.

[0079]

As described above, according to the present invention, accurate operation (reduction of required power) of ventilation equipment can be performed in accordance with a change in ventilation state in a tunnel having a branch point and a junction. It is possible to realize a road tunnel ventilation control device capable of stabilizing the ventilation state and preventing pollution of the environment around the tunnel.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a first embodiment of the present invention.

FIG. 2 is an explanatory view showing the flow of air in a main tunnel and a merging tunnel according to the first embodiment of the present invention.

FIG. 3 is a block diagram showing a configuration of a second embodiment of the present invention.

FIG. 4 is a block diagram showing a configuration of a third embodiment of the present invention.

FIG. 5 is a schematic view of a tunnel to which the second and third embodiments of the present invention are applied.

FIG. 6 is a characteristic diagram obtained by simulating the effect of the second embodiment of the present invention.

FIG. 7 is a characteristic diagram obtained by simulating the effect of the third embodiment of the present invention.

FIG. 8 is a block diagram showing a configuration of a fourth embodiment of the present invention.

FIG. 9 is a block diagram showing a configuration of a fifth embodiment of the present invention.

FIG. 10 is a block diagram showing a configuration of a sixth embodiment of the present invention.

FIG. 11 is a block diagram showing a configuration of a seventh embodiment of the present invention.

FIG. 12 is a block diagram showing a configuration of an eighth embodiment of the present invention.

FIG. 13 is an explanatory diagram showing the effect of each embodiment of the present invention as viewed from the entire tunnel plant.

FIG. 14 is a schematic view of a target tunnel according to the embodiment of the present invention.

FIG. 15 is an explanatory view showing an arrangement state of ventilation equipment of the tunnel in FIG. 14;

[Explanation of symbols]

DESCRIPTION OF REFERENCE NUMERALS 1 upstream wind direction anemometer at junction 2 downstream wind direction anemometer 3 wind direction anemometer in junction tunnel 4 wind direction and wind speed calculation means in junction tunnel 5 jet fan operation number calculation means 6 jet fan drive 7, 8 switch 9a, 9b Pollution Concentration Meter 10 Concentration Concentration Distribution Estimation Means in Main Line Tunnel 11 Upstream Natural Ventilation Length Determinant 1 12 Ventilation Air Flow Adjuster 13 Ventilator Drive 14 Ventilation Air Flow Restriction Section Decision Means 15 Main Line Tunnel Inflow Traffic Measuring Device 16 Tunnel inflow traffic volume transition pattern creation means 17 Branch tunnel outflow traffic volume measurement device 18 Branch tunnel outflow traffic volume transition pattern creation device 19 Merge tunnel inflow traffic volume measurement device 20 Merge tunnel inflow traffic volume transition pattern creation device 21 Inside the main line tunnel Traffic volume calculation device for each section 22 Traffic volume calculation device for each section in the tunnel 23 Vehicle traveling speed measurement device for main line tunnel entry vehicle 24 Travel speed transition pattern creation device for main line tunnel entry vehicle 25 Vehicle traveling speed transition pattern measurement device for branch tunnel outflow vehicle 27 Combining device 27 Tunnel inflow vehicle traveling speed measuring device 28 Combined tunnel inflow vehicle traveling speed transition pattern creation means 29 Traffic flow calculation means in branch tunnel 30 Main line tunnel junction concentration meter 31 Ventilation air volume adjustment device 32 Ventilator drive unit 33 Main line tunnel exit side Wind direction and anemometer 34 Means for determining unbalanced air flow and exhaust air in main line tunnel 35 Traffic averaging processing means 36 Running speed averaging processing means 37 Wind direction anemometer for the most upstream side section of main line tunnel 38 Wind direction and wind speed averaging processing means 39 Main line tunnel Uppermost section contamination concentration meter 0 pollutant concentration averaging means 41 pollutant generation amount calculating unit 42 mains tunnel most upstream section pollutant concentration distribution calculating means 43 pollution quantity calculation formula correction means

Claims (9)

[Claims] 1. A one-way road tunnel comprising a main line tunnel, a branch tunnel, and a merging tunnel, and a tunnel duct having a large number of air inlets and exhaust outlets is installed on the side of these tunnels. Based on an input of an anemometer in the merging tunnel provided at at least one location in the merging tunnel, and a measurement value from the anemometer in the merging tunnel, the wind in the merging tunnel is directed to the main tunnel. And a jet fan operating number calculating means for calculating the number of jet fans operated provided in the merging tunnel. 2. A one-way road tunnel comprising a main tunnel, a branch tunnel, and a merging tunnel, and a tunnel duct having a large number of air inlets and exhaust ports is provided on the sides of these tunnels. An upstream anemometer and an anemometer downstream of the junction provided respectively on the upstream and downstream of the junction on the main line tunnel; and an upstream anemometer and an anemometer of the junction upstream and downstream of the junction. Means for calculating the wind direction and wind speed in the merging tunnel based on the input of the measurement value from the meter, and the merging based on the calculation value input from the merging tunnel wind direction and wind speed calculating means. The number of jet fans operated to calculate the number of jet fans installed in the merging tunnel so that the wind in the tunnel is directed to the main line tunnel Road tunnel ventilation control apparatus being characterized in that and a calculation unit. 3. A one-way road tunnel comprising a main tunnel, a branch tunnel, and a merging tunnel, and a tunnel duct having a large number of air inlets and exhaust ports is installed on the sides of these tunnels. A plurality of pollution concentration meters that measure the concentration of contamination in the main tunnel, based on the input of the measurement values from the plurality of pollution concentration meters,
A pollutant concentration distribution estimating means in the main line tunnel for estimating a pollutant concentration distribution in the main line tunnel; and Upstream natural ventilation length determining means for extracting a section where natural ventilation is to be performed by setting the air volumes of a plurality of air outlets and exhaust ports to zero, and the ventilation air volume in the section extracted by the upstream natural ventilation length determining means is A ventilation tunnel airflow control device, comprising: a ventilation airflow volume adjustment device that adjusts a ventilation airflow volume to zero. 4. The road tunnel ventilation control device according to claim 3, wherein the upstream side natural ventilation length determining means is replaced with the main line tunnel contamination concentration distribution estimating means based on the estimation result. In the middle part, a main line tunnel middle part ventilation air flow narrowing-down section determining means for extracting a section for narrowing the air flow of a plurality of air inlets and exhaust ports provided on the inner side of the tunnel, the ventilation air flow adjusting device comprises: A road tunnel ventilation control device for adjusting the ventilation air volume in a section extracted by a tunnel intermediate portion ventilation air volume narrowing section determination unit by a predetermined amount. 5. A one-way road tunnel comprising a main tunnel, a branch tunnel, and a merging tunnel, and a tunnel duct having a large number of air inlets and exhaust ports is provided on the side of these tunnels. A main line tunnel inflow traffic measuring device that measures the traffic flowing into the main tunnel, and a time-series traffic flow per unit time flowing into the main tunnel based on the measurement result of the main tunnel inflow traffic measuring device. A main line tunnel inflow traffic volume transition pattern creating means for creating a transition pattern; a branch tunnel outflow traffic volume measurement device for measuring the traffic volume flowing from the main line tunnel to each branch tunnel; and a measurement of the branch tunnel outflow traffic volume measurement device. Based on the results, the traffic volume per unit time flowing out of the main tunnel into each branch tunnel A branch tunnel outflow traffic volume transition pattern creating means for creating a sequential transition pattern; a merging tunnel inflow traffic volume measuring device for measuring the traffic volume flowing from each of the merging tunnels into the main line tunnel; and the merging tunnel inflow traffic volume measurement. Based on the measurement results of the device, a merging tunnel inflow traffic volume transition pattern creating means for creating a time-series transition pattern of the traffic volume per unit time flowing from each merging tunnel into the main tunnel, Based on the input of pattern signals from the pattern creation means, the branch tunnel outflow traffic volume transition pattern creation device, and the merged tunnel inflow traffic volume transition pattern creation device, each traffic flow in each main road tunnel is calculated based on the input of the pattern signal. The calculation results of the section traffic calculation device and the section traffic calculation devices in the main line tunnel. And a ventilation air volume adjustment device for controlling the ventilation air volume in the main line tunnel based on the result. 6. The road tunnel ventilation control device according to claim 5, wherein the vehicle traveling speed measuring device for measuring the traveling speed of the vehicle flowing into the main line tunnel, and the vehicle traveling speed measuring device for measuring the vehicle flowing into the main line tunnel. Based on the measurement result, a main line tunnel entering vehicle traveling speed transition pattern creating means for creating a time-series transition pattern of the traveling speed of the vehicle flowing into the main line tunnel, and a vehicle flowing out of the main line tunnel to each branch tunnel. A branch tunnel outflow vehicle traveling speed measuring device that measures the traveling speed, and, based on the measurement result of the branch tunnel outflow vehicle traveling speed measuring device, a time series of traveling speeds of vehicles flowing out of the main line tunnel into each branch tunnel. Means for creating a transition pattern of a vehicle traveling speed at a branch tunnel outflow vehicle for creating a transition pattern; A merging tunnel entering vehicle traveling speed measuring device for measuring a traveling speed of a vehicle flowing into the main line tunnel from the tunnel, and flowing into the main line tunnel from each of the merging tunnels based on the measurement result of the merging tunnel entering vehicle traveling speed measuring device. A merging tunnel inflow vehicle traveling speed transition pattern creating means for creating a time-sequential transition pattern of the traveling speed of the vehicle, and
The main line tunnel inflow traffic volume transition pattern creating means, the branch tunnel outflow traffic volume transition pattern creation device, the merging tunnel inflow traffic volume transition pattern creation device, and the main line tunnel inflow vehicle traveling speed transition pattern creating device, the branch tunnel outflow vehicle traveling speed A road pattern for calculating a traffic volume of each section in the main line tunnel based on input of each pattern signal from the transition pattern creating means and the merging tunnel inflow vehicle traveling speed transition pattern creating means. Ventilation control device. 7. A one-way road tunnel comprising a main line tunnel, a branch tunnel, and a merging tunnel, and a tunnel duct having a large number of air inlets and outlets is provided on the side of these tunnels. A branch tunnel outflow traffic volume measuring device that measures the traffic volume flowing out of the main line tunnel to each branch tunnel, and a unit per unit flowing out of the main line tunnel to each branch tunnel based on the measurement result of the branch tunnel outflow traffic volume measuring device. A traffic flow transition pattern creating means for creating a time-series transition pattern of traffic volume, and a traffic volume in the branch tunnel based on a pattern signal input from the traffic flow transition pattern creating means for branch traffic flowing out of the branch tunnel. A traffic volume calculation means in the branch tunnel for calculating And adjusting the ventilation air volume in each branch tunnel based on the calculation result of the traffic concentration calculating means in the branch tunnel and the measurement value of the main tunnel tunnel pollution concentration meter. A ventilation control device for a road tunnel, comprising: 8. A one-way road tunnel comprising a main tunnel, a branch tunnel, and a merging tunnel, and a tunnel duct having a large number of air inlets and exhaust ports is provided on the side of these tunnels. The relationship between the amount of air blown and the amount of exhaust air in the main line tunnel is determined based on the input of the measured values of the exit side anemometer in the main line tunnel provided near the exit in the main line tunnel and the measured value of the exit side anemometer in the main line tunnel. An airflow / exhaust air unbalance section determining means in the main line tunnel for determining a section where an unbalanced unbalance operation is performed; and A ventilation air flow control device, comprising: a ventilation air volume adjustment device that controls a ventilation air volume in each section. 9. A one-way road tunnel comprising a main tunnel, a branch tunnel, and a merging tunnel, and a tunnel duct having a large number of air inlets and exhaust ports is provided on the side of these tunnels. A mainline tunnel inflow traffic volume measuring device that measures the traffic volume flowing into the mainline tunnel; a traffic volume averaging processing unit that averages an output from the mainline tunnel inflow traffic volume measurement device; and A main line tunnel inflow vehicle traveling speed measuring device for measuring a traveling speed; a traveling speed averaging processing means for averaging an output from the main line tunnel inflow vehicle traveling speed measuring device; and an uppermost upstream section in the main line tunnel. Averaged from the pollutant concentration meter measured at the most upstream section of the main line tunnel Pollution concentration averaging processing means, based on the output from the traffic volume averaging processing means and the traveling speed averaging processing means, the amount of pollutants generated in the most upstream section in the main line tunnel, the correction coefficient A pollutant generation amount calculating means that calculates by using a predetermined calculation formula having, based on an output from the pollutant generation amount calculation means and the wind direction and wind speed averaging processing means, based on an output from the most upstream section in the main tunnel. Means for calculating the contamination concentration distribution in the length direction, the most upstream side section contamination concentration distribution calculating means for calculating the contamination concentration distribution in the length direction; Based on the comparison of the above, the contamination generation amount calculating means for correcting the correction coefficient of the predetermined arithmetic expression used when the contaminant generation amount calculating means performs the calculation. Road tunnel ventilation control apparatus according to claim.