The road to better lighting: your route mapped out

at this point we're talking about lower traveling speeds lower traffic flow but we have to pay special attention to the fact that these are going to include people running their everyday lives so children playing in the street people are out running cyclists you'll have parked cars potentially blocking your view all these things have to be considered hello and welcome along to this let's talk light session by thor the road to better lighting your route mapped out my name is daniel pars i am the national account manager in the uk public lighting team if you have any questions after the presentation please feel free to drop me an email my email is daniel.parse at zumtobelgroup.com this session is the second in a five part series we've already had session one presented by martin thompson which was key considerations and top tips we have session three to follow which is introducing the rpec optic lighting system this will be presented by peter thorns and maxine purdue we then have two further sessions which will be presented by waldemar becker this is zagar be ready be future proofed and urban sense the outdoor lighting control system we're kicking off with major roads traffic routes this type of road we have mixed vehicle use wherever this is cars buses van drivers truck drivers all of which need to be considered and all of these vehicles will be traveling at high speeds typically you will see column heights of 8 to 12 meters on a major traffic route some examples of some column configurations on the left hand side here twin central which would be often used for dual carriageways where you have columns centrally positioned with twin arm brackets lighting either side alternatively you have opposite arrangement columns where you have columns on either side of the dual carriageway the key part for any road lighting scheme but in particular for major roads is how do you determine the most appropriate lighting class this is done by assessing the road in terms of traffic flow speed of the vehicles whether it's mixed use are there pedestrians are there cyclists are there footpaths all of these are key factors and all of them deserve special attention so in this particular example on the right hand side you can clearly see we have crossings we have pedestrians we have the major traffic routes you can look at these two areas separately so you can have one loom in there lighting the traffic route and you can also have an additional luminaire at the back of the column to light the footpath and both of those you can use two different lighting classes so you may use an m class for the traffic route and then an appropriate alternative class a p class for example to like the footpath minor roads so at this point we're still talking about traffic routes although compared to a major road you will have a lower uh traffic flow lowered travelling speed but you've still got all the same types of vehicles and also pedestrian use so due to the lowered traffic flow you would therefore select a lower lighting class by comparison there are some additional considerations to be made typically this could be in a more rural location rather than let's say a city center so you may need to also consider that the additional environmental impacts that you may have with your lighting scheme and as you can see from this picture here we've got the surrounding areas which are very rural compared to the previous picture which was more city center-based okay so for minor roads you typically have a column height of five to eight meters you'd have single single lane usage rather than your carriageway and you would possibly also have a footpath or a cycle path as you can also see from this example you'll also have rural uh considerations to be made so starting with the road we're looking for a lighting class that would be appropriate for the traffic flow and the speed of that road which as i've said would be lower compared to a major road and you also have the consideration for the people using the footpath and the cyclist using the footpath you may want to add into this point considerations for facial recognition so that people feel safe this can be done through selecting luminaires with a good color rendering and you also have the additional opportunity to light the footpath with an additional luminaire which you can see in this example here conflict areas are conflict areas you have all of the vehicles that we've already spoken about traveling at relatively high speeds all coming into one area from different directions now for that reason you can imagine that the awareness and the alertness required for the drivers and the users is therefore required to be of a higher level and because the alertness level is increased the lighting level should therefore be increased now what this means within the standards is that the conflict zone or the roundabout junction whatever it might be should be lit to one lighting class higher than the highest approach road so if you have an m2 class road this would lead to a c1 class conflict zone you must pay special attention for the exits and the access areas and you could even consider using a higher color temperature in combination with a higher light level the combination of these two things will give you a an all-round more alert picture for the drivers approaching the design the example that you can see here is a typical layout columns will be positioned around the outside of the conflict zone residential roads so at this point we're introducing more everyday life into the equation this can be in a city center in a residential area such as a housing estate so as you can imagine at this point we're talking about lower traveling speeds lower traffic flow but we have to pay special attention to the fact that these are going to include people running their everyday lives so children playing in the street people out running again cyclists you'll have parked cars potentially blocking your view uh pets all these things have to be considered two examples that we can see here uh in other areas of the continent outside the uk continuing style lighting it could be quite common particularly in the nordics it's a very efficient way of lighting a street uh in more more commonly it moves particularly in the uk and other areas of europe you would see the example on the right so it's a very typical scene you've got houses you've got cars you've got pedestrians so at this point not only are you selecting the right class for the road and for the users of the road but you have to pay special consideration to the residents this can be for security reasons so they feel safe in their home environment but also for we have to consider light trespass obviously people's windows people's private property they don't want unnecessary obtrusive light light spill going on to their properties all of these things have to be considered now at this point you are more likely to be at a relatively low light a low level let's say a p4 class or a p5 class between three and five lux average so a significantly lower level than what you'd expect to see on a traffic route and again that goes back to the fact that you've got lower traffic speeds and lower traffic volume pedestrian crossings so the most important part of a pedestrian crossing is that you have to alert the driver to its existence so they have to be aware in advance that there is a crossing coming up whether that is in a city centre or a rural location the same applies essentially you want that crossing to be as safe at night as it would be in the day there's some special techniques in order to to achieve this we have the use of double asymmetric optics either side of the crossing the position of the columns is very important to create that positive contrast for the pedestrian within the calculation we are looking at vertical illuminance therefore we are lighting lighting the person and that is to give that advanced warning to a driver approaching that crossing that somebody is either on the crossing or about to enter that crossing typical example would be a five or six meter column as i said with a double a double asymmetric optic the light levels should be a higher level than the approach road and you may also consider a higher cct color temperature than the approach road so for example if the approach road is 3000 kelvin you may choose to move up to a 4000 kelvin light source for the crossing just to differentiate it from the road itself additional measures can be using additional signals just to highlight that crossing bridges now with bridges in terms of lighting the road the same applies to the other types of road we've already looked at you're looking to light that road in a safe way to the appropriate lighting level but there are some additional considerations when it comes to lighting a bridge and that is you have to highlight the extremities of the bridge in terms of the width and in terms of the height this will potentially highlight any any hazards for the drivers on the left hand side we have a comparison of a conventional lighting scheme using columns versus a lower mounted option now conventional lighting scheme would be as with other roads using columns particularly eight meter columns 10 meter columns 25 to 35 meters apart now one thing to consider is first of all will they fit on the bridge how are you going to fit them it might not be physically possible due to the design of the bridge other things to consider are what is the bridge traveling over so for example if it is a bridge in a city center this may be traveling over a residential area for example so if you put an eight meter column or a 10 meter column on top of a bridge that's already 10 meters in the air effectively you've got a luminaire 20 meters in the air which is going to create spill light and obtrusive light outside of the bridge that could potentially have a negative impact on the people around you an alternative to that could be a river where the authority for whatever reason might not want to light the river and only light the road so you have an option here of a low mounting option which is at 0.9 meters which means the light distribution is below the eye line of the incoming traffic below the eye line of the user this can be achieved through thorns flapping technology in the oris luminaire now what this gives you is increased control in terms of your obtrusive light your glare and also contribution to sky glow because the light is concentrated on exactly where it needs to go at a very low level we're now moving on to some examples of some of our road lighting products kicking off with bizarro pro this is a high performance high quality luminaire that has the full capability to like all the roads we have spoken about so far so whether it's a residential road or a major road the product is available in two body sizes ranging from 12 leds all the way up to 72 leds giving you that full range and capability to light whatever the class may be up to potentially m2 the luminaire itself has some key design features that are let's say installer friendly that is an important part of any product the product is accessed from the top without the use of tools tilting technology not only allows for the product to be tilted in an upward plane but also a negative plane this can be useful in cases where you are installing the luminaire onto an existing bracket that may have a 5 degree or a 10 degree tilt but you don't want the luminaire itself to be in a position of 5 or 10 degrees without having to change the brackets so in that case you have the ability to effect essentially minus the luminaire so if the degrees is set to 10 because of the bracket the luminaire can be brought back down to zero this helps you achieve your classes in terms of your glare classes and also takes into consideration reduction of upward light output another example of products within our range is bizarro now this luminaire is particularly designed for the residential applications it's a smaller lighter weight product where the residential sizes are split into two bodies this can be useful uh in one particular example would be the weight so in some cases you could be putting the luminaire onto a pole bracket onto an or some sort of bracket that is unable to take a certain weight maybe because of its age and there's this luminaire gives you that ability to put on a very very lightweight luminaire while still maintaining the performance that you need as with visaro pro at this point i just want to highlight that all of our luminaires as are ready to connect the industry is very much moving towards this type of technology saga based technology sensor ready system ready there's lots of different terminology that people will use essentially it means that the product is ready to connect to any system or sensor that you may want to use you can install multiple multiple sensors on multiple sockets and all of our target devices are d4i certified in terms of controls for offers a wide range of lighting control solutions wherever we're talking about remote and wireless control via our urban sense control system i've already touched on zaga you can also have standalone systems where you don't have a full control system you have a standalone system that is either attached to the column or built within the luminaire so one option is is move you which is essentially motion detection so if you use a footpath as an example the light will only come on as it senses movement and presence of either a pedestrian or a cyclist after they have moved on the lighting would either then dim back down or or even turn off a bypower switch is a very simple way of increasing or decreasing your light output without the use of external controls all of our outdoor products with our best-in-class rpec optical system this is an in-house optical development this is a topic that will be covered by peter and by maxime in a later in a later session something that we take very very seriously with inform is corrosion resistance essentially this is making the products fit for purpose for the environment that they're going into now the easiest way to do that is to design them for the harshest environment so typically that would be a coastal environment with a high saline content so all of our luminaires as standard have a c5 class in accordance with iso 9223 and what this means is the product off the production line is designed to be in a very very harsh environment you might not need it to be in that environment but you've got that safety net there's also question marks as to what is coastal some people class it as the promenade in a in a coastal town other people class coastal as five ten kilometers from the coast it's a it's a little bit subjective and therefore to give us that complete comfort all of our products are designed for the harshest environment and we do that by using the best possibly best possible aluminium this is enac 44 300 which is has a very low copper content which copper is one of the main ingredients that leads to corrosion in addition and another important point to make is that this c5 class not only applies to the body the aluminium body and it also applies to the external fastenings anyway any installer will know if they have to go back to aluminum to try and remove it years down the line it's the external fastenings that will either corrode or or completely break down and therefore it's very difficult to adjust that luminaire or remove that luminaire so the c5 class is the body and the external fastenings which we believe is quite a unique offer another thing that we take very seriously within form is the environmental impacts of our schemes there are various ways that we can minimize that impact through the use of controls whether that's dimming trimming or potentially adding sensors so that the light is only on at the most appropriate times we also have the option of light shields this can be externally fitted retrofitted light shields or you also have the option of internal light shields which are actually built into the optical system itself color temperature is a hot topic the the industry has moved already from cool white to neutral white to warm white potentially this is this story is going to continue fallen are very much on board with this conversation and we believe it is the right thing to consider the right color temperature for the right application because of that we have developed two new technologies first being night tune now what nitune offers is a combination of two different color temperature leds within one luminaire so within this example you have 2 200 kelvin leds and also 4 000 kelvin leds and the light is actually mixed so when both led configurations are on together you have a mixed cluster of leds producing a mixed color temperature in this example you could be looking at 3000 kelvin whilst both are on and that might be the the most appropriate color temperature during the earlier hours when you still have cars on the road people on the streets in line with your lighting class you have a color temperature that is appropriate for the type of use as you get later into the evening there's less cars on the road people are in their homes so at that point you can question whether you still need to maintain that same color temperature particularly late at night is when nocturnal animals come into play and ecosystems within the local area most of this most of this goes on without without us noticing because it's when we're asleep so if we're asleep why does the street need to be lit as if it's still busy so at this point we can reduce the color temperature by essentially switching off the 4000 kelvin leds so this does two things it saves you energy because half of the leds are no longer on so you have an energy saving benefit but you also have only the 2 200 kelvin leds in play now nocturnal animals much prefer color temperatures towards the red end of the spectrum it has less impact on their traveling patterns and their general way of life and what we can do is later on in the night or in the early hours of the morning when people start to wake up go to work get go about their day we can then switch back on those 4 000 kelvin leds to give you a higher light level and maybe a more appropriate color temperature for the type of use so that's night tune another technology that we have developed is variable light distribution now what this means is you've got two different light distributions within one luminaire this can also be used in combination with different color temperatures so in the example on screen you can see that you have one of the optics pointing at the road with let's say a 4000 kelvin and then you have the footpath which would be for pedestrians or cyclists which could be three thousand kelvin or two thousand two hundred kelvin it's about selecting the right color temperature for the right application for the type of use and the combination of using two different optics within one luminaire gives you the the advantage of not necessarily needing two luminaires to do the same job now all of these can be used in combination together so you could have night tune and variable light distribution additionally at this point you could even talk about adding sensors so you've got nitrogen looking after the color temperature the appropriate light level you've got variable light distribution giving you the right distribution for the right application at the right time and then you could add sensors into the equation so for example the footpath on this particular scheme could maybe only be lit when it's needed well thank you for listening if you do have any questions please drop me an email at daniel.parse zoomtheworldgroup.com [Music] you

Channel: Lets Talk Light - Thorn Lighting

Views: 26,498

Rating: 5 out of 5

Keywords:

Id: 9hP42Acr7bk

Length: 26min 14sec (1574 seconds)

Published: Tue Oct 05 2021