Roundabouts Vs Diverging Diamond...Who WIns in Cities Skylines?

so I'll regularly get comments from people saying that diverging diamond interchanges or DD eyes are the bee's knees they can solve everything can time traffic lights are the way to go but what is better a DDI with time traffic lights or roundabouts you know there's only one way to find out and if you know what I was gonna say next stick it in the comment below let's go hello everybody and welcome back to the next picture city with me biffer here we are in the city of Stephenson sent in by Leon thank you very much for sending it in uh even seen this this city is so huge it's approaching two hundred thousand people and what we are gonna do is we're gonna pick the one area as you saw in our little introduction there to work on I just thought we'd take a second just to look round at the rest of the city this is a nice-looking city I like this I like this island in the middle here as well with the nice trees and things down a Eve but a lot of time into this city I like it I like it very good very good and there will always be the links to the city's plea and post fix in the description below so if you want to go and check this city out yourself you can go and find him so we're going to take a look at this industrial area over here for two reasons one is that the traffic gets pretty backed up it gets pretty bad down here look at that it's all backed up all over the place and because it also has a diverging diamond interchange which is this interchange here man the amount of comments I get saying use a diverging diamond interchange it's the best thing ever yes and no and we'll talk about that as we go along let's just quickly check out what the percentage is that we're on on 73 percent so that is not bad but as you can see we've got a lot of traffic a lot of traffic here so we're gonna try and sort this out and a lot of traffic coming down and hitting a problem here so all of this we're gonna look at we're gonna leave the rest of the city because cargo areas are notoriously the worst so with the diverging diamond interchange it sort of goes the people that are coming up here go up and down and across and these ones going up here go through there on to the it's almost on to the other side of the road and back across again and they're sets of traffic lights in here now in a vanilla setting which is what this is this had just been put down nothing's been touched you have got traffic lights here as you can see the cars stopping and you've got traffic lights here and what will happen these are gonna change in a minute and let these guys through here ideally you'd want them to come all the way through go all the way out and get out the other side without stopping but these lights have changed see these cars are going through so if there was anybody going on they would then have to stop there like he had to there we go the red tractor which means it could start backing up over all this area this kept reasonably clean but look at all this back it out back you know backing up back it up all the way up there and all the way down here so we're gonna try and deal with that so ideally we want to give these guys and girls some more access over here there we go so cars if they wish can come up there and then just to make sure they don't start causing a problem over here we're gonna say for you guys that you can only go there let's take a look at this we probably could just do with upgrading a little bit down here to four lanes come on mouse click when I click you there we go just to let these guys there we go come out like that excellence they don't get anybody else's way so we're gonna say this outside lane there's for you you three can go straight on there we go like that and then I'm gonna say no switch in there no switch in there and then when you come out the four lane section you can switch and then I'll just do the same go in the other way and then we're gonna take a look at that diverging diamond interchange and see what we can do now for my I'm not a road expert I'm not a town planner or anything like that but for my understanding our diverging diamond interchange would normally have more than two sets of traffic lights here we go look starting to back up a little bit but we've got two no none there but there's traffic lights here there's also traffic lights here now normally I would just say make that the main road everybody asks us to give way and that would be it but we're going to do something a little bit different so first of all I am going to do is actually want to say they wouldn't do let's see how far that goes that's gonna go all the way outs are there okay so everybody coming on now has to give way by the way we do have despawning turned off for this one yeah let me ask you about that if you don't have traffic manager having despawning running so basically if there's too many cars the game would just remove some that is how vanilla city skylines works I don't normally fix traffic that way but as a lot of people are basically playing in vanilla I'm gonna do it for this one and as you can see even with despawning there's still a heck of a lot of cars so yeah that's the reason I've done it this time set that as the priority roads there we go it took this time but there's still a lot of cars coming down here and I think I am gonna set traffic lights at this Junction here so we're gonna go like that and put these traffic lights back in so we've got those traffic lights there these here and these here this button here timed traffic lights we're going to select our nose we want that one we want that one and we want this one so these are all going to be included in our little setup we're going to do and now we're gonna set up our time traffic lights so ideally what I would like is traffic to come down here be able to get through that light through that light and through that light before the lights change so let's just have a look down here we're gonna say in our first step add step that's gonna be green I'm gonna keep it nice and simple and just say that screen as well and then we'll come back to this Junction in a moment these two have to stop and then they're gonna be coming up here around the corner and we're gonna say you were green that one's red then you're gonna be coming along here and be going this way so that's green and then you're going to go where you want to go so that is step one now I've got to work out our time how long are these lights gonna stay in this configuration before they switch to the next configuration step I reckon twenty as a minimum time actually let's go fifteen as a minimum time and it's go twenty as a maximum time there's a few other things you can do but that's what we're gonna do at the moment so let's go to add so that is step one then we're gonna go to our second step there we go so we've got the x in there so let's go back to our first traffic light so now we're going to which the mound and say you're gonna be red and you were gonna be green there we go so that's gonna give guys from the side chance to go and it's not that many coming down the sides there and then we're gonna do the same here that you're gonna be red you're gonna be green and then here you are gonna be green you're gonna be red so this will give the chance whether people come in this way to go up and to come down and as you can see there's not much traffic going in that direction so this is one of the beauties of the time traffic light we can say ten and a maximum 15 and we're gonna go for that so that's why the beauties you can set your traffic lights up different timings depending on how much traffic and also they will always one like that vanilla traffic lights will sometimes run a sync release they will go out of kilter I don't what the quick to me so instead of running at the same time you know this one green that one red that one weird that one green they will sort of go out of kilter so I think you get the idea with that so now we've got our two steps we can start our steps and then what I tend to do is just skip through them so now it's gonna do step one from the beginning click on there and then we're gonna do show counters and it's gonna put a little council on there for how long this is running for so that is going to green there we go which means this should be green these cars are going through and then it's green there as well and they're going through and that counts is gonna go down there we go in the meantime this traffic's building up and as long as it doesn't get down past here we're okay right now the lights have changed so now this can go through and these have to stop these can go through they can go through there ah we didn't add this one in here right okay that's fine so let's stop this so there may be better ways of doing this I'm not an expert I have used time traffic lights from time to time okay so I've been watching this for a few minutes now and although this part is running well and traffic certainly isn't backing up as you can see here look at the try and traffic lights are going and these guys are able to get through and come out the other side which is great this has been backing up a little bit over here what I'm think the durian is adding in some more traffic lights everybody gasps and falls over Biff is having traffic lights I can't believe it yes that is what we're gonna do because at the moment these guys have got quality if these want to turn left and go up here they can't because these are always block in there what I mean is a couple of things we could do we could say don't go through the junction like that so they'll stop in the middle we'll say the same no actually don't go through the junction and we'll probably say the same here and that might just be enough to get things moving through even though it's the main road I mean look at this traffic all because of that at the end there so this is why roundabouts are so good because you don't have to worry about all of that you can just say yep no problem go through the junction carry on keep driving no issues and you just you know the world's your oyster okay so let's add a little bit more complexity to our setup here let's pause the game a moment and I'm gonna use our lane connectors so coming down here I only want cars to be in a certain lane if they're gonna go either right and straight on can be that one and left can be this one here so we've got a dedicated left-hand lane which is good there's no art there is actually other nodes here so we're gonna say no Lane switch in there but I'm happy for them two lane switch here as they come into that Junction and that is already set up so that will help with things moving here and we're going to do the same over here and then we're gonna do the same over here going in the other direction so hopefully as the lights change that will help a bit now something else I've noticed that we need to fix with our Lane connectors is this truck here went round the corner we do not want that we want these guys to go straight on you go they're all there yeah and you go they're all there we'll do it that way there we go so that will stop them going around and you turning I don't know whether they're doing that there or not I haven't seen it anywhere else but we'll see how that goes and that will get things moving along hopefully the traffic here is not built up as much as it was before which is nice I'm also going to adjust this lane here coming onto the diverging diamond interchange cuz this one does left left and straight on I'd rather that just says straight on and nothing else I mean we could change that one down here as well there we go so we've got both covered just so people don't get in the wrong lane and get any shutters way there this is moving nicely which is good I mean what ideally I would like to do is add in a roundabout here and just take people away from this Junction going out going out and then say put a roundabout here it would mean we're moving one two three four five six seven eight farms and just turning this into a little roundabout I'm trying to avoid that try not to yeah deal with all your all your farm staff but hmm cargo does give a heck of a lot of traffic okay so being a little bit of a bone a dive adjusted the traffic lights and yeah these are 99 I'll get to change those don't worry I adjusted your traffic lights and then I forgot so not forgot to turn back on again so we were getting lots of problems with the traffic and I thought it was me and it was the time traffic lights oh what a Wally so these guys he can never go we need to fix that by starting to work a little bit better we just got a busy patch coming in now but what a Wally what a Wally okay so just looking at the DDI itself and the two lanes coming on either side and of course the highway connections as well the way you've got it set up at the moment is not too bad things don't back up right down to the junctions which is good and everything is moving smoothly on the top we don't mind a little bit of traffic here waiting for the traffic lights that is just how it should work what the problem is is all of this traffic down here so what I have noticed is you've not used any cargo train hubs or anything like that in this area everything has to head out into the city either through here or up this why is that being used much not really so what I would like to do is attach to your railway line that we've got run in let's do that over here which we've got running down here and that is just a passenger train station there and put something at the top here to encourage all of these cars or a lot of them to come up this way hmm I'm thinking we're gonna get a lot of traffic you know coming down here so let me just have a little consideration here we come yeah we're not gonna piggyback on the back of that road we're gonna come off of that road and we're gonna use a little one-way road I mean take a pic what you would like to use any one-way road you like I've got this one lane one-way road it's just something I've got properly from Network extensions and we are gonna come up here and just set a little something up there we go we've got one little one-way road coming up here a bit of space to soak up any extra cargo traffic and then they can head down here and go back onto the highway whichever direction they want to go you might want to add a proper Junction now I've just flown that up there and so hopefully we're gonna start seeing trucks coming up here there we go I'm wanting to use this and that's gonna take away some of this traffic that's coming down here and causing all these bottlenecks now to me this is an interesting test because I would initially would have replaced this with a nice little roundabout but this isn't actually the problem it's just all these junctions down here and all the cars and the trucks getting in each other's way so now we know this works okay and we know it does because there's not loads of backed up traffic coming on and off of it let's just see where they're having this up here help some of these guys to come up this way now what I'm gonna do actually is just change the speed of this road because it's a very low speed 30 mile an hour what's all this 50 down there let's set this to 60 so shift and hold nut should just do that all the way ah yeah there we go excellent I would perhaps also as well change all of this through here's a 16 there we go and then I'm gonna run the game for couple of minutes and see here we go and look at that look at the traffic that's coming up here all of this a trucks that would have gone the other way and I'm hoping that there was enough room here to soak up these and of course you've got so much space you can make this really long curve it around and it won't be any problem and all of the his traffic that would have been down here and this is getting a lot clearer which is good if we keep this running I think that's gonna do a lot of good for so let's just have a look at this side now we did have a load of traffic coming down here but that seems to have sort of sorted itself out we've got this little thing going on here let's just see what's happening so what cars going up something going up and then turning around are coming back down again I'm assuming you don't want that to happen that just seems completely pointless to me I can see what you're trying to do so let's just change that to one lane one way in and out and then we're going to say on here you go up there and it you go down there there we go and don't stop just keep on going yet that's fine don't want you turns thank you very much so that will keep that flowing and then down here you want this continuing to flow don't you so what I'm gonna do is is take my leg connectors and say when you come in you can only go that way actually there's only one lane isn't there you can go there most of these are coming around and this only needs to be one lane down here as well so we're gonna take hmm yeah let's change it for this small one could you can still field on the side of that there we go and hopefully that won't miss anything out yeah most of those are going straight on so then what we can do as well is say you can go there or there or there and then we can take the traffic lights out and now just keep that flowing that'll keep flowing that'll keep flowing this will keep flowing all keeps flowing and moving and that'll stop all of this backing up up here cuz they can go in and then head other places into the city these are all coming down this way and that will stop all of that as well so yeah like something else I've just noticed here you've got this cargo terminal on this road but it's a one-way road so anybody coming up here they're stopped off at this cargo terminal first and then they've come this way and they're never going to use that one and unfortunately you've got the one-way road going the long ways look your cars are being blocked coming in and leaving I mean so that is really not what you want um so what I would say to do is is we'll get this road and we'll just turn that completely ran the other way but what that's gonna mean is is they're gonna use this one here but what I'm gonna do is a little something so we're gonna turn that load all the way round so they're not blocking each other in and let's go underground or consciously that one from there can't get that one let's go underground there we go do that one yet excellent but now they're gonna hit this one first but that means we're gonna have a lot of traffic backing up here so what I am thinking is is we're just gonna turn that one off so ignore that one and this is all gonna be a cargo sponge along here and then the cars are gonna come in and out or the trucks are gonna come in and out of there and that is gonna work much better as long as I have all the rows facing the right way so that's coming down that means that needs to go that way that needs to go that way yep there we go that's good and then do I need to change something the other side's going down going up yep that will work much better yeah here we go we're getting the traffic across the bridge again down here so I just want to do a little bit of lane management here and we're gonna do this first and say you coming up there can only go into that lane this is two lanes coming across there that really doesn't need to be two lanes let's get our one lane coming up there so that helps for lane management's so now if we go here we can say you can go into that lanes you're not going to get in each other's way that's good and we just make sure you can go straight through yeah and then when you come down here you want to make sure that you get priority to get out because as it stands at the moment a lot of traffic coming down here going up there waiting the thing yeah won't change that and you've obviously gone for a visual thing going on there ideally this needs to be around about it really does so we are gonna do that we're gonna take that we've got a two-lane road I'm gonna switch that for the highway roads and we're gonna pop that in there and we're gonna lose two buildings one on each side but that is infinitely gonna be worth it there we go they will disappear and then we'll just make sure that traffic manager has been set up correctly which it hasn't so we'll do you give way you give way that's one way going out that's one way that's good and then we do there you go through but not you you go through but not you that's fine and that's fine and hopefully that'll just get things are moving along a little bit quicker and let's just check the speed on that road it's a hundred yeah why not yeah we'll just see how that one goes it might be that these guys here neither little extra slip lane to come down but yeah hopefully that will help although at the minute these guys are just waiting for these constantly aren't they [Music] mm-hmm do you know what now that just was never gonna work all of these trucks are down the bottom here all they wanted to do was get up the top so I just added this little slip lane here change this to a three lane road and force with the lane connects of this one to go into this Lane and these two to go into the outside lane and it just clears all that up this is all cleared up yeah that's a much better use of that area okay let's just weasel all the way up here and see how this is go more me look at that look at how many people want to come and use this area we definitely need to make this even bigger because now the traffic is starting to back up down here well that is an easy fix that is an easy fix there we go excellent that's what we want to see all of that traffic being moved up here out of the way of the industry area so we've learned a few things in this episode that diverging diamond interchanges look nice they can be made to work but it's a flippin pain in the backside to get them to work correctly even with the time traffic lights and I'm sure I could have done the time traffic lights better but even so it's a real pain in the backside I just want to put a big round about here and to show you how good that can be so we can do a quick comparison between the two also don't forget you really want to make sure you've got cargo train cargos stations whatever they're called set up near your industry areas to take a lot of the traffic so I'm gonna save the game I'm gonna do this save this fix and put a link below but I'm now going to replace this with a big roundabout or an oval around more likely and let's see the difference in the traffic flow don't think that is too bad traffic keeps on moving and flowing which is the thing we're always aiming to do I mean you could do it with a little roundabout with slip lanes going across and all sorts of different things but I've just flown that together quickly and it's really keeping up with the traffic very well so have we learnt our lessons about diverging diamond interchanges after that video let's do some smart alecks out there that know and I don't mean that in a derogatory way I mean actually do know more about DD eyes and Ty and traffic lights than I do but on that subject I view me as an average player which I would say about 90% of the people that played City skylines are the average players average too good let's be fair but even doing stuff like that becomes very very difficult well thank you very much for watching if you enjoyed that don't forget to hit the subscribe button and alike as well that is always nice and check out the other video on the screen as well we've been doing lots of different city fixes i've got ones that cover vanilla and with mods and all different scenarios so check those out and I will see you very very soon for the next episode of fix your city take care everybody bye bye

Channel: Biffa Plays Indie Games

Views: 998,203

Rating: 4.8243213 out of 5

Keywords: biffa plays, biffa, biffaplays, biffa2001, cities skylines how to fix your city, how to fix your city cities skylines, cities skylines fix traffic, Cities Skylines, city skylines, how to fix traffic cities skylines, cities skylines how to fix traffic, city fix, cities: skylines, cities, skylines, how to fix traffic, city planner, cities skylines, cities skylines tutorial, cities skylines roundabout mod, cities skylines broken, cities skylines expert, diverging diamond interchange

Id: wx_cBD5bwas

Length: 23min 43sec (1423 seconds)

Published: Sat Jul 13 2019