Tunnel Manual

5/21/2018 Tunnel Manual

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ReluxTunnelMarch 2010


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Relux Informatik AG, ReluxTunnel, 17.03.2010

CONTENTS

Contents ......................................................................................................... 21

Activating the module .............................................................................. 3

2 General information ................................................................................. 33 Quick Guide ............................................................................................. 64 Entering the tunnel details ...................................................................... 74.1 Tunnel geometry ........................................................................................ 74.2 Roadway ................................................................................................... 84.3 Walls ........................................................................................................ 85 Entering Caculation specifications ........................................................... 95.1 Establishing the tunnel class to SLG 201 ..................................................... 106 Luminaires ............................................................................................. 116.1 Selecting the luminaires ............................................................................ 116.2 Regulating steps ....................................................................................... 146.3 Control group strategies ............................................................................ 166.4 Positioning the luminaires .......................................................................... 186.5 Extended function: Reverse row ................................................................. 206.6 Importing an EXCEL luminaire list ............................................................... 226.7 Importing a TUNLIGHT2-XML file ................................................................ 227 Calculation ............................................................................................. 237.1 Measurement ranges ................................................................................ 237.2 Automatic positioning of interior lighting ..................................................... 257.3 Automatic positioning of entrance lighting ................................................... 267.4 Normal calculation .................................................................................... 318 Output of results .................................................................................... 318.1 Screen .................................................................................................... 318.2 Printer .................................................................................................... 388.3 Export ..................................................................................................... 38


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1 ACTIVATING THE MODULEYou will need to purchase the corresponding licence before you can use the tunnelmodule. You will find detailed information atwww.relux.ch.

2 GENERAL INFORMATIONThe ReluxTunnel tunnel calculation program has been developed for tunnel lightingexperts. The program is based on standards CIE 88:2004 "Guide for the lighting ofroad tunnels and underpasses", CIE 140:2000 "Road lighting calculations", SLG201:2005 "Richtlinien ffentliche Beleuchtung Strassentunnels, -galerien und unterfhrungen"and DIN 67524-1:2008 "Lighting of street tunnels and underpassesPart 1: General quality characteristics and guide values". Knowledge of thesestandards is essential in order to be able to asses the calculation results and plan thetunnel lighting on a practically-oriented basis.

Once the tunnel module has been activated, ReluxPro can be started and the Tunnelbutton selected from the start menu.

Fig. 1: The start button for a tunnel project

The parameters in a tunnel project are controlled primarily via the Scene barand theTunnel bar. These appear automatically on the left side of the user menu once theprogram has been started. It is possible that the Scene bar and Tunnel barcouldhave been switched off or deactivated.
http://www.relux.ch/http://www.relux.ch/http://www.relux.ch/http://www.relux.ch/


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Fig. 2, 3: Scene bar and Tunnel bar activated (left) and deactivated (right)

To switch on the Scene barand Tunnel bar, you should click on the Windowmenu.The bars can be activated again by placing a tick in front of the Sceneand Tunnel

options.

Fig. 4: Scene bar and Tunnel bar activated

Later on, when different elements (such as luminaires and measurement ranges) havealready been positioned, the Tunnel barwill always show the appropriate window for

the element that has been selected in the Scene bar.

Figs. 5, 6, 7: Different elements in the Scene bar and the corresponding Tunnel bar

Sc e n e b a r

T u n n e l b a r


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By way of a guide, the parameters clicked in the Tunnel bar (marked blue) areexplained right at the bottom.

Figs. 8, 9: Explanation of the concepts in the Tunnel bar (left) or other dialog windows

(right)It can happen in some cases that a window display is not updated after entries havebeen made or actions carried out. You can have the windows updated and shown intheir latest version by selecting View Redraw.


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3 QUICK GUIDEThis chapter sets out the steps involved in a tunnel planning process. More detailedinformation on the individual steps may be found in the chapters that follow.

Steps involved in tunnel planning:

1. Enter the tunnel details (geometry, roadway, walls)2. Enter the calculation specifications3. Make any adjustments to the general settings that may be necessary for the

length of the threshold and the transition zones, etc.

4. Position the row of luminaires for the interior lighting5. Read in luminaire types6. Allocate the luminaire types to the entrance lighting or interior lighting7. Specify the regulating steps and control groups8. Automatically position the interior lighting9. Check the results for the lighting engineering values and make any further

adjustments that may be necessary to the interior lighting until the requiredvalues are attained

10. Position the row of luminaires for the entrance lighting11. Automatically position the entrance lighting12. Check the results for the lighting engineering values and make any further

adjustments that may be necessary to the entrance lighting until the requiredvalues are attained

13. Output the project


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4 ENTERING THE TUNNEL DETAILSThe details of the tunnel geometry and the calculation parameters can be entered inthe Tunnel baron the left side of the user interface.

Fig. 10: Tunnel bar

4.1 Tunnel geometryThe tunnel cross-section can be set as rectangular or a semi-circle in the Shapeinputfield.

Fig. 11: Select tunnel cross-section

In ReluxTunnel, a distinction is drawn between Lengthand Length total. The actuallength of the tunnel is entered in the Length totalinput field, while the Length inputfield shows the tunnel length displayed in the program. For the sake of clarity, it does

not make sense to display very long tunnels in their entirety, since after the adaptationlighting, only the interior luminaires are located inside the tunnel, with a constantspacing. The value for Length is calculated automatically (twice the length of thethreshold zone plus the length of the transition zone) and is thus displayed with a greybackground. In line with the default, the value is 300 m to begin with and isrecalculated and displayed after Speedand Luminances Lhave been entered underCalculation specifications. If the real tunnel is shorter than the one that iscalculated automatically, the value entered for Length total will be entered in theLength input field. If you wish to determine the length of tunnel displayed yourself,

you should click on the icon and, under General settings, remove the tick againstCalculate the length of the model automatically. Following this, the Length inputfield will no longer be shown with a grey background, and you can enter a value ofyour own.


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Fig. 12: The automatic calculation of the length of the model has been deactivated

The height of the tunnel (underside of the tunnel ceiling) is entered under Heighttotal.

4.2 RoadwayFor the roadway, it is possible to enter the width, the number of lanes, the width of anemergency lane (if available) to the right of the roadway, and the properties of theroadway covering (R table and q0).

Fig. 13: Input options for the roadway

4.3 WallsFor the right and left tunnel wall, it is possible to enter the width and height of thefootpath, the height of the wall to be calculated and the diffuse reflectance of the wall.

Fig. 14: Input options for the tunnel walls

The inputs for the tunnel geometry can be readily observed and checked in the 3Ddisplay.


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Figs. 15, 16: Normal view (left) and wire frame view (right)

5 ENTERING CACULATION SPECIFICATIONSFor the calculation, it is possible to enter the speed and the specified luminances for

threshold zone 1 and the interior zone of the tunnel (by day).

Fig. 17: Input options for the calculation specifications

The length of the threshold zone is calculated automatically from the input parameters,on the basis of CIE 88:2004, and is thus shown with a grey background. If you wish to

have the length of the threshold zone calculated on the basis of SN 640090b or DIN67524-1, or wish to specify this length yourself, you can press on the icon. UnderGeneral settings, you can then select SN 640090b or DIN 67524-1. If you wish toenter the length of the threshold zone yourself, you must remove the tick againstCalculate the length of threshold zone automatically. The Threshold zoneinputfield will then no longer be shown with a grey background, and you can enter your ownvalue.

Fig. 18: Options for calculating the length of the threshold zone

In addition, it is also possible to change the friction coefficient of the roadway, thelongitudinal gradient of the roadway or the reaction time. If the tick in front of Frictioncoefficient wet pavement (recommended)is removed, the length of the threshold

zone will be calculated for a dry roadway (not recommended in the standard).Note: The calculation of the threshold zone length is performed differently in thedifferent countries, which means that major variations can result. Knowledge of the


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valid standard and making correct allowance for this is thus a prerequisite for correctplanning.

In the Options window, under the General settings option, it is possible, underExtended settings, to determine the factor for the luminance differential between the

end of the transition zone and the interior zone, and also the exponent of the functionin the transition zone.

Fig. 19: Options for calculating the length of the transition zone

Note: The calculation of the transition zone length is performed differently in thedifferent countries, which means that major variations can result. Knowledge of thevalid standard and making correct allowance for this is thus a prerequisite for correctplanning.

5.1 Establishing the tunnel class to SLG 201In the Tunnel baryou can click on the icon, and the Optionswindow will openwith Calculate the class of the tunnel. By entering certain parameters, it is possibleto establish the tunnel class as per SLG 201. The details of the tunnel length, speedand number of lanes are automatically taken from the tunnel geometry entries. Theother parameters have to be entered in order to establish a tunnel class for thethreshold and interior zones and the resultant lighting engineering requirements(luminances, uniformity, threshold increment) and to have these displayed on theright.


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Fig. 20: Establishing the tunnel class as per SLG 201

If inadmissible parameters (an excessively low or excessively high speed) are entered,then no values will be shown on the right, and the fields will switch from green to red.

Fig. 21: Inadmissible parameter entry

Note: The lighting engineering requirements established in accordance with SLG 201are valid for Switzerland. Other standards apply in other countries.

6 LUMINAIRES

6.1 Selecting the luminairesPrior to the calculation, it is necessary for at least one row of luminaires to have beenpositioned. To do this, you should go to the Scene bar and select the Roomstructureoption, clicking on it with the right mouse button, so that the context menuopens. You should then select the New luminaire row option. When this option isactivated in the project for the first time, the Product selection window for theselection of a luminaire type will automatically open. It is also possible to proceed viathe standard route for selecting a luminaire.


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Figs. 22, 23: Positioning a new luminaire row (left) and adding luminaires (right)

Note: In the Product selectionwindow, you can select the Individual luminairetab in order to import individual Eulumdat files. Digital light distribution curves from awide range of manufacturers can then be imported in a highly flexible manner.

In the standard case, there will be a light distribution curve for each luminaire/lamptype, which you can read in. If you only have one light distribution curve and wish touse this with different lamps, then you must read in this light distribution curve asoften as required, and, in the Product selectionwindow, click on the luminaires to bemodified. You should next click on the Modify typebutton; you can then open theModify luminairewindow where you can change the desired data (e.g. the luminiarename and number, the lamp type, lamp power, luminous flux and installed power).After the change has been made, it is important for the lamps read in to displaydifferent luminous fluxes in line with the lamp employed.

Fig. 24: Modify luminaire


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After entering one or more luminaires in the project, you should close the luminaireselection. The Optionswindow will then open automatically. At a subsequent point in

time, you can also open this window directly in the Tunnel barby means of theicon.

Here you have the opportunity to define alternative equipment and different regulatingsteps.

In the Alternative equipmentdialog, it is possible to classify the luminaire types thathave been read in as adaptation or interior lighting. Under Unused luminaires youcan see all the luminaire types that have been read in and not allocated. TheAdaptationbutton can be used to allocate a luminaire type to the adaptation lighting,while the Interior button will allocate a luminaire to interior lighting. The Deletebutton is used to cancel the allocation, and the luminaire type will appear underUnused luminairesagain.

Fig. 25: Three allocated luminaire types and two non-allocated luminaire types

It is possible to make more than one entry in each field. The order in which the

luminaires are entered does not matter, since this will be reconfigured automatically onthe basis of the luminous flux each time the Options window is closed and opened.Each luminaire type can only be used once.

In the Maintenance factor input field, all the luminaires can be allocated the samemaintenance factor. By using the individualbutton, the maintenance factor for eachluminaire can also be specified separately.

If you see that certain luminaire types are still missing, you can press the Selectluminairesbutton to go directly to the Product selectionwindow and read in newluminaire types.


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6.2 Regulating stepsAfter selecting the luminaires, or when the regulating steps dialog is opened for thefirst time, the Configure luminaire controlling window will appear automatically.

Here, you can select the kind of control and the number of regulating steps for theadaptation and interior lighting. Relux Tunnel currently supports three control types.

Switch (On/Off)

Switch (On/50%/Off)

Free dimming (cannot be selected, since not relevant for the calculation)

Fig. 26: Specifying the regulating steps and control groups

After the desired parameters have been entered, you should close the window with theOKbutton. The Optionswindow with the Regulating stepsdialog will then open.

Fig. 27: Specifying the regulating steps

Here, you can specify the luminous fluxes of the luminaires for the individual regulatingsteps, as a function of what has been specified (100%, 50% or off), or you can enterindividual values in the field.


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Figs. 28, 29: Determining the luminous flux in line with the specified value (left) orindividually (right)

The particular regulating step to be calculated is determined by placing a tick in theCalculateline. Once the desired parameters have been entered, the window is closedwith the OKbutton, and a row of luminaires will be placed automatically. This will beshown as Group 1 in the Scene barand also in the Tunnel barand will additionallybe visible on the floor plan or in the 3D view.

At a subsequent point in time, the icon can be used to open the Optionswindowand the Regulating steps dialog directly in the Tunnel bar. You can use theConfigurebutton to open the Configure luminaire controllingwindow.

Note: A control group can contain different types of luminaire. You will see whichluminaire type in a control group is mounted at which point from the Luminaire list

once the calculation has beenperformed.

Fig. 30: Luminaire list and control groups


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6.3 Control group strategiesThe combination of switching type and number of control groups gives rise to a

natural number of regulating steps in the entrance zone. With the On/Off strategyand four control groups, it is possible to implement four regulating steps, for example.

The automatic positioning arranges the luminaires in clusters in accordance with theircontrol group.

For example: On/Off strategy with four control groups

4-2-3-1|4-2-3-1|4-2-3-1......

In order to achieve the regulating steps, the control groups are switched off one afterthe other. In our example, each time a group is switched off, the luminous flux andhence the luminance level is reduced by 25%. At the lowest step, only the luminaires

in Group 4 are still switched on.Since the overall length of the adaptation zone is reduced when the entrance level isreduced, no luminaires from the higher-number group may be placed in the rearsection of the tunnel. The overall picture is then as follows:

S1 = 100%

4-2-3-1|4-2-3-1|4-2-3-1......2-3-1|2-3-1.....2-1|2-1....1-1-1-1

S2 = 75%

4-2-3-X|4-2-3-X|4-2-3-X......2-3-X|2-3-X.....2-X|2-X....X-X-X-X

S3 = 50%

4-X-3-X|4-X-3-X|4-X-3-X......X-3-X|X-3-X.....X-X|X-X....X-X-X-X

S4 = 25%

4-X-X-X|4-X-X-X|4-X-X-X......X-X-X|X-X-X.....X-X|X-X....X-X-X-X

The individual switching strategies:

Switch ON / OFF

See above.

The number of regulating steps is identical to the number of control groups.Switch ON /50%/ OFF

This arrangement is identical to Switch ON/OFF, but since provision is made for anintermediate step, there are twice as many possible regulating steps as control groups.

Dim 50%

It is assumed here that the luminance levels of between 100% and 50% are achievedthrough dimming. After this, half the luminaires in a cluster are switched off, and theremaining luminaires are dimmed in the 100%-50% range again, which now

corresponds to a luminance level of 50%-25%.The number of regulating steps similarly corresponds to the number of control groups,


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The width of the clusters, however, is now 2(n-1) (n= number of control groups)

For example: with three control groups, it is possible to achieve the 50% and 25%levels by switching.

S1 = 100%

3-1-2-1 | 3-1-2-1|3-1-2-1......2-1|2-1....1|1

S2 = 50%

3-X-2-X | 3-X-2-X|3-X-2-X......2-X|2-X....X|X

S3 = 25%

3-X-X-X | 3-X-X-X|3-X-X-X......X-X|X-X....X|X

In this case, it is now possible to dim down to 12.5% of the initial luminance level.

Dim 30%It is assumed here that the luminance levels between 100% and ~30% are achievedby dimming. After this, 2/3 of the luminaires in a cluster are switched off and theremaining luminaires dimmed in the 100%-30% range, which now corresponds to aluminance level of ~30%-~10%.

The number of regulating steps similarly corresonds to the number of control groups,

The width of the clusters is now 3(n-1) (n= number of control groups)

For example: with three control groups, it is possible to switch down to levels of 30%and 10%.

S1 = 100%3-1-1-2-1-1-2-1-1 | 3-1-1-2-1-1-2-1-1|......2-1-1|2-1-1....1|1

S2 = 30%

3-X-X-2-X-X-2-X-X | 3-X-X-2-X-X-2-X-X|......2-X-X|2-X-X....X|X

S3 = 10%

3-X-X-X-X-X-X-X-X | 3-X-X-X-X-X-X-X-X|......X-X-X|X-X-X....X|X

Note: The maximum distances for the highest control group at the start of the

tunnel are limited by the uniformity required at the lowest regulating step. As a result,the maximum cluster width and hence the number of control groups is generallylimited. Please also note the specifications concerning the Maximum distance betweenluminaires for automatic positioning.

Note: The patterns listed here are used as defaults by the program and providedwith the appropriate support for Automatic positioning. Independently of this, theuser can set up additional regulating steps in the dialog or adjust the intermediatevalues through individual dimming settings for each regulating step.

Note: At all events, the user must make sure that the prescribed uniformities andrequired levels are achieved and must monitor these. The automatic positioning facility

cannot guarantee this, and it may be necessary to position an additional row, etc.


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6.4 Positioning the luminairesOnce you have generated a row of luminaires, it is possible to set the basic parametersfor this row. To do this, you must mark the corresponding row of luminaires in theScene bar. The parameters will then be shown in the Tunnel bar, where you can

change them. In the Illuminance type input field, you can allocate the row ofluminaires to interior or adaptation lighting.

Fig. 31: Allocating the luminaire type to interior or adaptation lighting

It is also possible to specify the luminaire coordinates and orientation angle, thenumber of luminaire rows, the distance between luminaires and the number ofluminaires. If a luminaire row is generated together with a number of other rows,these rows will automatically be synchronised (if the luminaire type or the coordinatesare modified, for example).

Two options are available in the In part listinput field. The list normaloption meansthat the selected row of luminaires is listed in the luminaire part list. The alreadylisted option means that the selected row of luminaires is not listed. This option isused, for example, in the case of a tunnel with two-way traffic where a Reluxcalculation is conducted for each tunnel portal. Since the interior luminaires are takeninto account for both calculations, they would be included in both luminaire part listsfor the Relux projects and thus give an incorrect overall number of luminaires for theinterior luminaires. For this reason, the interior luminaires in the second Relux projectwill be defined with the already listedoption.

Note: If a value of -1 is entered in the Numberinput field, the row of luminaires

will be continued up to the end of the tunnel with the specified spacing of Delta.


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Fig. 32: Compiling a row of luminaires for the whole tunnel

If you click on the icon in the menu bar, the luminaire row will be shown in a listwith details of the x-coordinate (distance from the tunnel portal), the distance (delta)from the preceding luminaire, the control group and the luminaire power/luminous flux

of the lamp. You can change back to the preceding view with the icon.

Fig. 33: List view of the row of luminaires

In the list view, you can make manual changes to all the listed parameters for eachindividual luminaire.

The x-coordinate and the distance from the preceding luminaire can be changed byentering individual values. If a luminaire is to be moved by a specific value, it is alsopossible to position the cursor at the extreme right of the input field and then enter aplus or minus sign and the desired distance by which the luminaire is to be moved. The

program will then calculate the new value automatically.

Figs. 34, 35: A displacement of 2 m is entered (left), and the automatically calculatednew value then displayed (right)

It is only possible to change the control group and the luminaire power/luminous flux

of the lamp if there are other options for these. If only one control group or oneluminaire type, for example, has been specified for the interior lighting, then it will notbe possible to make any change. If four luminaire types have been specified for theadaptation lighting, for instance, then the specified luminaire type can be replaced byone of the other three luminaire types.

It is also possible to change several luminaires at one and the same time. To do this,the desired input fields must be marked. To mark an area, you should click to the leftof the luminaire number on the first line to be marked, keep the left mouse buttonpressed and then move down, with the mouse, to the last line that you wish to mark.To mark several sections, you should click to the left of the number of the first line to

be marked and then mark further luminaires by simultaneously pressing the Ctrl keyand making further clicks with the left mouse button.


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Figs. 36, 37: Marking one area (left) and several areas (right)

When you have selected one or more luminaires, you can use the following icons. With

the icon, you can enter a copy of a selected luminaire. With the icon, you can

delete the luminaire that you have selected. The icon activates move mode. Youshould mark the first luminaire to be moved and change its x-position and then, at thesame time, all the subsequent luminaires will be similarly moved by the same amount.

You have to click on the icon again to end the move mode.

If you wish to change the values in the input fields for more than one luminaire, youmust mark the desired lines in the manner set out above, press the Ctrl key andsimultaneously click on the input field that is to be changed. You can then enter thenew value, and this will then be adopted automatically for all the other input fields thatare marked.

Figs. 38, 39: Marking more than one input field (left) and changing the values (right)

The options for automatic positioning are described in the Calculation chapter.

6.5 Extended function: Reverse rowIn the case of tunnels with two-way traffic, it is possible for these to be so short thatthe transition zones of the two portals overlap in the centre of the tunnel. Theextended function of Reverse rowis provided to ensure that this middle zone can becalculated rapidly. If both portals are to be illuminated in the same manner, the row ofluminaires for the adaptation lighting can be duplicated. After this, you should press on

the icon to open the Optionswindow. In the Extended functionsdialog, you canthen use the Reverse rowbutton to rotate the luminaires in a row of luminaires by180 and move them to the other tunnel portal, maintaining identical distances fromthis second tunnel portal.


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Fig. 40: The Options window with the Extended functionsdialog


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6.6 Importing an EXCEL luminaire listYou should press on the icon to open the Optionswindow.

In the Excel Importdialog, you can import a luminaire list in the form of an Exceltable. To do this, it is necessary to select the Excel file and specify the worksheet androws/columns in which the data is located. Alongside the x-coordinates, it is alsopossible to import the control groups. The Previewsection on the right shows whichdata is being adopted. You should then press the Assume databutton to import thedata into the program.

Fig. 41: Options window and Excel Import dialog

6.7 Importing a TUNLIGHT2-XML fileIn an empty Relux tunnel project (i.e. one into which no luminaires have so far been

read in) you should go to the Tunnel bar and press the icon to start the ffnen[Open] window. You should then select an XML file and press the ffnenbutton tohave the project data imported into the program.


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Fig. 42: Importing a Tunlight2-XML file

7 CALCULATIONIf at least one luminaire row has been positioned, there are two possible ways ofstarting a lighting calculation:

the icon will position luminaires automatically and then start the calculation

the icon will calculate the existing lighting situation

7.1 Measurement rangesPrior to the calculation, it is not necessary to position any measurement ranges tocalculate the relevant lighting engineering variables, since the three measurementranges of Adaptation, Entrance and Interiorare created automatically during the

first calculation.The three measurement ranges differ on the basis of the length, position, calculatedvalues and observer principle.

Fig. 43: Automatically-created measurement ranges

The Adaptationmeasurement range takes the whole adaptation section into account,and since changeable luminances occur in this area, it does not make sense tocalculate a mean value or overall and longitudinal uniformities. These calculations are


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thus not performed or output. In addition, the principle of a moving observer isadopted, in other words, the observer always looks at the point being calculated at anangle of 1. With an observer height of 1.5 m, this gives a distance of approx. 86 m.

The Entrancemeasurement range takes part of threshold zone 1 into account, while

the Interiormeasurement range covers part of the interior zone. Constant luminancesoccur in these two areas, which means that it makes sense to calculate a mean valueand the overall and longitudinal uniformity. These calculations are thus performed andthe values output. In addition, the principle of a fixed observer is employed. In otherwords, the observer is located 60 m away from the measurement range. Since theposition of the measurement ranges depends on the position of the luminaires, theposition of the measurement range is similarly specified anew each time there is anychange in the luminaire positions.

It is also possible to compile your own measurement ranges. To do this, you should goto the Scene bar and click on the Room structure option with the right mousebutton, so that the context menu opens. You should select the New measurement

rangeoption.

Fig. 44: Creating a new measurement range

You can then enter the name, the starting point, the length, the number of calculationpoints and the calculation specifications.

In the case of the calculation specifications, you have the options, in theActualization[Update] field, of Manual, Always create newand Correct lengthand X-Position.The Manualoption means that once parameters have been entered,they remain fixed for each calculation. The Always create newoption means that allthe parameters will be adapted to the new requirements for each new calculation (e.g.with an increased distance between the luminaires, the length of the measurementrange and the number of calculation points can also be increased). The Correctlength and X-Position option means that the length and position of themeasurement range will be aligned, but the number of calculation points will remain

the same.

In the Observer input field, you have the options of Manual, Each lane and Justright lane. The Manual option means that the observer can be positioned asrequired. With the Each laneoption, an observer is placed on the middle of each lane.The Just right laneoption means that an observer is only positioned in the middle ofthe right lane.

In the Moving observerinput field, the options of Yesand Noare available. The Yesoption means that the principle of a moving observer is adopted, i.e. the observermoves with the calculation points. The observer always looks at the point beingcalculated at an angle of 1. With an observer height of 1.5 m, this gives a fixed

distance of approx. 86 m from the calculation point. The No option means that theprinciple of a fixed observer is adopted, i.e. the observer is positioned 60 m from themeasurement range.


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Fig. 45: Parameters for a user-defined measurement range

7.2 Automatic positioning of interior lightingThe icon is used to position luminaires automatically and then start the calculation.In this mode, the program attempts to find ideal luminaire positions on the basis of thespecified parameters and standards.

You first position the luminaires for the interior lighting. After clicking on the icon,the Tunnel automatic placementwindow will open.

Fig. 46: Tunnel automatic placement window


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You must place a tick in the box next to Interior lighting. In the last line entitledPosition roundingyou can also specify how accurately (in mm) the luminaires are tobe positioned in respect of the x-coordinates. All the other input fields are only ofrelevance for optimising the entrance lighting.

Note: light distribution curves can be measured in different ways. This can lead to adifferent luminaire orientation in the program which, in turn, can lead to incorrectresults. For this reason, it is important to always check for the correct luminaire

orientation. In the 3D LDC view, you can check this with the icon; in the 3D view,you can check it in the context menu by means of the Wire frame view option.

Figs. 47, 48: Luminaire orientation for interior lighting (left) and counter-beam lighting(right)

Once the interior lighting has been automatically positioned, further optimisation canbe performed on this luminaire row, either in Tunnel automatic placementmodeagain or manually, until all the lighting engineering requirements are met.

7.3 Automatic positioning of entrance lightingOnce you have completed the interior lighting, you should generate a new row ofluminaires for the entrance lighting. To do this, you can duplicate the existingluminaire group 1 by clicking on the right mouse button, opening the context menuand selecting the Duplicateoption. You can also open the Room structure contextmenu by means of a right mouse click and then select the New luminaire row option.

Once the new row of luminaires has been positioned, you must go to the Tunnel barand the Illuminance typeinput field and allocate the luminaires to the Adaptationoption. In this way, the only luminaire types used for the calculation will be thosespecified as adaptation luminaires in the Alternative equipmentdialog.


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Figs. 49, 50: Generating a new row of luminaires (left) and allocating these to theAdaptation luminaire type (right)

After clicking in the Tunnel baron the icon, the Tunnel automatic placementwindow will open. This must have a tick in the box next to Entrance lighting. The tickin the box next to Interior lightingis then removed.

Fig. 51: Tunnel automatic placement window for entrance lighting

You can enter a large number of settings for the automatic positioning of the entrancelighting.

In the Actualization [Update] input field, there are three options. With theContinuedoption, the luminaires are arranged in such a way that the CIE luminancecurve is attained in an optimum manner as far as possible. This is the option that is


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normally used. The As stagesoption arranges the luminaires in such a way that theCIE luminance curve is replicated in stages. This requires a higher lamp power. Thisoption should thus only be used for special cases. The Linear option allows theotherwise blocked input fields (grey) of Test luminance (linear) and Luminairetype to be selected. In this way, it is possible to establish the spacing betweenluminaires that is necessary to achieve a specific roadway luminance with the selectedluminaire type.

Figs. 52, 53: The Linear option (left) and the calculated luminaire spacing - Delta(right)

The Step factor input field should only be used if the As stages option has beenselected in the Aktualization [Update] input field. With a step factor of 1, theluminance curve comes close to the CIE luminance curve. With a maximum admissiblestep factor of 3, the luminance curve is considerably higher than the CIE luminancecurve, and the step shape of the luminance curve is clear to see.

Figs. 54, 55: Luminance curve with the As stagesoption: step factor = 1 (left) andstep factor = 3 (right)

The Maximum luminaire distance input field is used to specify the maximumpossible distance between the luminaires of an individual control group that will ensurethat sufficiently uniform lighting is still achieved. If this value is exceeded duringautomatic positioning, the program will automatically switch to the next smallest lamppower and shorten the distance between the luminaires again, in line with theluminous flux of the lamp.

Note: The maximum distance between luminaires has an influence on the uniformityof the lighting and the number of luminaires and must therefore be chosen verycarefully. You can select the maximum distance between luminaires with the Linearoption, for example.


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The Min. luminaire dist.input field is used to specify the minimum distance that ispossible between luminaires. This will depend on the size of the luminaire and anyintermediate space that may be necessary between two luminaires.

The Hold the initial luminaire distance input field offers two options. First of all,

you should perform a calculation with the No option, so as to achieve an optimumdistance between luminaires for threshold zone 1 with a constant luminance level. Ifthis has been calculated but the back section of the luminance curve (threshold zone 2and transition zone) is not yet optimum, you can run through a calculation with theYes option and hence fix the luminaire spacing in threshold zone 1 and only re-calculate the back section.

In the Luminaire dist. at the beginning input field, you can enter the luminairespacing for threshold zone 1. This value will only be taken into account if the Yesoption has been selected in the Hold the initial luminaire distance input field. Itmust be re-entered prior to each new calculation.

In the Factor lengthinput field, the luminance curve can be moved to the right so asto ensure that the target curve is attained. If you only wish to correct the back sectionof the luminance curve (threshold zone 2 and transition zone), you must select theYes option in the Hold the initial luminaire distance input field and enter apreviously determined value in the Luminaire dist. at the beginninginput field.

Figs. 56, 57: Luminance curve with a length adaptation factor = 1 (left) and a lengthadaptation factor = 1 .1 (right)

In the Factor luminanceinput field, you can shift the luminance curve upwards so as

to ensure that the target curve is attained. If you only wish to correct the back sectionof the luminance curve (threshold zone 2 and transition zone) you must select the Yesoption in the Hold the initial luminaire distanceinput field and enter a previouslydetermined value in the Luminaire dist. at the beginninginput field.


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Figs. 58, 59: Luminance curve with a luminance adaptation factor = 1 (left) and aluminance adaptation factor = 1 .1 (right)

In the Position rounding input field, you can specify how accurately (in mm) theluminaires are to be positioned in respect of the x-coordinates.

Once all the input fields in the Tunnel automatic placement input field have beenselected, you can start the calculation with the Place button. The program places theluminaires with the highest light flux at the start of the tunnel for threshold zone 1,with a constant spacing between luminaires. In threshold zone 2 and the transitionzone, the luminance level is reduced by increasing the distance between theluminaires. If the maximum possible distance between luminaires is exceeded, theprogram will switch to the luminaire with the lower luminous flux, etc.

Note: With a low luminance level, it can happen that the highest lamp power (e.g.

400 W) cannot be used, since this would mean that the maximum possible distancebetween luminaires was exceeded.

After the calculation, you can look at the luminaire list in the Tunnel bar. Theluminaires are allocated to the corresponding control groups as a function of thenumber of regulating steps and groups. With 3 control groups in the adaptation zonethis can be as follows, for example:

3 2 1 3 2 1 3 2 1 3 2 1.2 1 2 1 1 1 1

Figs. 60, 61: Luminaire list for 3 control groups (left) and 4 control groups (right)

Depending on the lighting engineering results obtained, further corrections can bemade after the automatic positioning and calculation has been performed, either using


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the Tunnel automatic placementmode again, or by making manual corrections tothe luminaire arrangement.

Note: With luminaire arrangements where interior and adaptation luminaires arepositioned on the same axes (y-coordinate), it is necessary to make sure, once all the

luminaires have been placed, that the luminaires do not collide with each other. In theevent of a collision, these luminaires must be moved in the x-direction.

7.4 Normal calculationThe existing lighting situation is calculated with the icon. This calculation modemakes sense if you have made manual changes and these are not to be overwritten bythe Tunnel automatic placementmode.

8 OUTPUT OF RESULTS8.1 ScreenOnce the calculation has been performed, you can select the most important lightingengineering results for all the measurement ranges in the Outputs symbol bar

and have these displayed. The full range of outputs for the tunnel areavailable in the Output bar.

Note:Whenever an output window is open, you can open the Propertieswindowwith the ALT-ENTER key combination, or with the right mouse button and the contextmenu. You can then make different adjustment to the outputs here.

The icon is used to show a results overview for each regulating step calculated.This contains a summary of all the calculated measurement ranges with all therelevant lighting engineering results.


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Fig. 62: Results overview

When the results overview is open, you can use the ALT-ENTER key combination toopen the Properties window. You can now select with a tick which lightingengineering values are to be specified.

Fig. 63: Properties window in the results overview

The icon is used to output the calculated illuminances and luminances in table formfor all the regulating steps that have been calculated.


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Fig. 64: Results table

You can use the icon to have the luminance curve shown on a graph for eachregulating step calculated. The red curve is the target curve and the blue curve theactual curve.


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Fig. 65: Luminance curve

When the luminance curve is displayed, you can use the ALT-ENTER key combinationto open the Properties window. You can now make various adjustments to theoutput, such as having the curve displayed on a logarithmic scale. You can also havethe curve displayed in such a way that it starts just before the measurement range atthe tunnel entrance. Deviations between actual curves and target curves can be shownin colour (with green signifying above the target curve and red below it). It is alsopossible to have all the luminance curves of the calculated regulating steps shown on adiagram.


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Fig. 66: Properties window of the luminance curve

The icon is used for outputting the calculated illuminances and luminances for allthe regulating steps that have been calculated, on a diagram with pseudo colours.

Fig. 67: Display in pseudo coloursFurther outputs on the tunnel are available in the Output bar.


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Under the project data, the data on the tunnel geometry and the calculationspecifications are shown.

Fig. 68: Output of the project data

In the luminaire list, all the data is given separately for the adaptation and interiorzones and for the individual row of luminaires. Details are included of the luminairetypes used, the overall number of luminaires, the system power and the flickerfrequency (only with a constant luminaire spacing). The luminaire list contains the x-coordinates, the power step, the lamp luminous flux, the control group and theluminous fluxes in the individual regulating steps for all the luminaires.

Note:The calculated system power is based on the data for the installed power ofthe luminaires that have been read in and must be checked there to ensure that it iscorrect.


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Fig. 69: Output of the luminaire list


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8.2 PrinterThe icon is used to open the Print managerwindow. You can then select thepages that are to be printed in the same way as in the Relux program to date.

Fig. 70: Print manager

8.3 ExportYou can save the luminaire list as an XLS file with File Export Excel list.

You can export the Relux calculation as an XML file for the tunnel calculation programwith File Export Scene as TunLight XML. To do this, you need to beconnected up to the internet, and Java must be installed on the computer. After

entering a file name and activating the Speichern[Save]button, the TunLight tunnelcalculation program will open automatically.

Date post:	13-Oct-2015
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Tunnel Manual

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