Traffic System

A couple of us are working on a traffic system, we are wondering if anyone else would be interested in this so we can make it more flexible and powerful to suit everyone.

Currently I made a short video of supposedly traffic control lights:

This is just a test on how the cars interact with each other, picture that scene to have a road and traffic lights

If you have any questions about the system feel free to leave a comment

 

a car following the lane very smoothly, bare in mind that the road is actually 15 degrees to the right so his actually not going just straight

birds eye view

third person view

 

I'd be interested!

 

Looks good, I'd recommend having a "spawn" feature, where you have a traffic bubble around the player so you can support very large cities.
Also key will be ease of use for setting up roads.

 

Is this based on waypoints and are the cars using physics? I'm working on something similar and have my traffic lights and roads working, jus fine tuning my cars before i start onto peds

 

@ad456m This would be a completely random simulation, where the vehicle could go off road randomly but is aware that it is doing so, the vehicle would then at go back to the path when appropriate.

Since we are trying to make the system easy to implement into a open world game, there is a lot more challenges; car chases, police activity etc.

Way points would be good for car racing where the vehicle has a fixed path and avoid collision. But in this scenario we are attempting to create a more exciting existence.


@carking1996 Thank you for your interest, if you have any questions feel free

@CrazySi We are trying to figure out the best approach for busy intersections and of course how to handle 100+ vehicles, I mean I would love to be able to chase down a car all the way to the end of the mountain, but how? how can we make some vehicles stay relevant?

 

Sounds nice! A lot more robust than mine will likely end up, i just have the random choice of route, no pathfinding whatsoever other than where the road goes. I will be keeping an eye on this to see how you get on.

 

So can you just spawn vehicles at random within say 500m (but not closer than 400m) to the human player, any vehicles that leave this region get removed and respawned.

For roads setup what I would do is have each single road section have 2 invisble nodes that are placed on entry and exit points. Intersections have 4, T junctions have 3. Nodes that are close are judged by the vehicle as connected. Vehicles can travel to right or left of nodes depending on if going from entry to exit or vice versa.

A "traffic light" switches nodes on and off at will. Vehicles only travel on enabled nodes and will come to a stop if there are no more nodes. A traffic light can control the junctions this way.

For special cases like police and getaway vehicles - well these obviously dont obey traffic laws. So they just use whatever node they feel like all the while trying to avoid the other vehicles, perhaps using a raycast mechanism.

 

Any updates?

 

I currently need a solution like this, I would be all over it!

 

looking good - especially this grassy car
mainly you use raycast or something different?

 

Hello guys,

Right now I personally have been working on the traffic simulator at least 9 hours a day, so far I've made a little progress.

The reason why it's currently taking so long to get past first base is because I want this to be a traffic simulator that can also be driven by players as well as NPC's. Where as a player walks over to a car he can steal it. A NPC can walk over to the car and steal it.





Heres what I can promise will be included:
Source code, same price... I dont like the idea of selling source separately
Support - I will over work on support once its released
Updates - we will constantly try and improve it, way past perfection.
lots more....Brain isnt functioning at full capacity atm lol





@reddotgames
I'm glad your interested in the grassy car haha.... I've actually moved on from the grassy car already!
I'm including raycast's where needed

@carking1996
Yes boss I'm over doing it =D

@UnleadedGames
Thank you for your enthusiasm man, I really appreciate it



Thank you guys

 

Will be waiting for it. Although myself personally wouldn't need the car stealing.

 

First of all, I am very interested and I think this is a great base to go on with! I wrote a PM to you, shiftyz

I'm looking forward to see more of it soon! Thanks for sharing

 

Big question for me, will this be an independent system with its own physics, or will we be able to integrate with say UnityCar/Edys/Unity Tutorial rigged cars?

 

@UnleashedGames
Maybe thats a question you can answer, would you guys rather it uses its own physics, or a preferred existing one? just let me know asap though

@Rattlehead
Yeah thanks i got the PM, its pretty complicated so I'll reply tomorrow afternoon .. off to bed now. Thanks for your interest man

@carking1996
That's fine, but i think some people would love it.



Any suggestions on price?

 

Ok, no problem. Thanks for your effort!

I think it should have pretty easy and therefore fast physics, so you can have 100+ vehicles driving around without performance issues. High end physics for AI cars are pretty senseless (Exceptions prove the rule).

 

I made a new video of a test with some new physics it's really nothing special but just to keep everyone up to date.

The AI here has learnt that the road is important, but doesn't know which direction to go in, next is laning.

please watch in high quality and ignore the clock on the top left.. its just something else im working on

 

Thanks for keeping us up to date!
Looking forward to see the AI stay in the same lane

 

This implies you are using machine learning techniques, eg ANN.
Or this just your way of saying: I have programmed it to follow roads.

 

No no neurals nets here, I haven't tried using neurals so I cant judge by it but it maybe possible. I have programmed it all

 

This is really good, looking as Traffic Edit, but really, you have to learn how to make trailers!!!

 

Well, I'm pretty sure it's not supposed to be a trailer. Just something to quickly show the progress and I really like that

 

@NewDevelopers -

Thank you for your feedback, I'm not entirely sure what you mean by Traffic Edit. Currently theres nothing to see here so I really don't have anything to make a trailer for! lol it's really in early development

@rattlehead -
thanks for clearing that up, I couldn't have said it better myself

 

Guys please take this poll regarding what physics to use, bare in mind if you choose third party physics you would have to buy it separately.

This will help me finalize which physics to use before I dive into that part, please think carefully and leave a comment.

 

Why not make the system physics independent? Most physics need only throttle-brake and steering inputs which are normalized.

This way you can implement LODs for physics. For example: near vehicle use Edy's or UnityCar, far vehicles use wheel-collider vehicles, 'out of view' vehicles follow a spline. This may enable you to support mobile platforms as well.

 

Honestly, I don't get the point of implementing highly detailed physics like Unity Car for traffic cars. Car tutorial physics are really enough for that.

When it comes to the players car (if you do something in GTA style) it would be great to have a choice between some well-known physics. So if someone purchase your asset he/she can choose what physics to use.

 

I'm going to get this for sure, I can't wait for it's release. Your system looks full of promise, and is perfect for an upcoming project we've been contemplating.

 

A lot has happened recently so I haven't been posting or replying to PM's. I apologize for the delay, the development is going very fast right now, I will be posting shortly with a new video etc.

- Using own physics.

 

looks interesting. Would it mean though that we would have to use your car physics and not other packages?

 

Can't wait to see how it turns out! Count me in for a purchase.

 

If this gets good enough, I may consider a purchase, as long as I can implement it into projects easily, and create speed limits.

 

"... the development is going very fast right now, I will be posting shortly with a new video etc."

Hope this still stands...

 

Hello guys, I've recently moved houses and I haven't had time to even come close to unity for a while since about 2 weeks since i last posted.

I will be replying to all PM's and emails tonight, I do truly apologize if anyone thinks they were ignored, I did read all the messages but I haven't had time to reply to them formally.

I'll be back on the project by tomorrow

Thank you for the support

-

Btw I have 100% decided to create physics from scratch (unless I can combine some examples or anything free you guys can think of)

So this means at the start the physics will be very basic, until the simulation area is treated nicely. This will also mean I won't be making appearances everyday to give updates, I'll be hard at work.

Cheers,

 

Hay im working on a traffic system having loads of trouble though. Maybe you could help?

 

If you sell it in Asset Store definitely I will buy it!

 

I'm currently prototyping a city builder game and naturally traffic is a huge factor. I, however, wouldn't need physics and only need a very basic AI to keep the agents on a pre-calculated route. Lane changes and such would have to be done in real-time, but the intersection to intersection path would already be known. The other catch is there would be thousands of vehicles, perhaps ten thousand plus with many intersections. The road network would also not be static as the player would be laying out new roads and intersections.

While your effort here is promising, it's been awhile since an update. Once the prototype is in a presentable state it will be used for a crowdsourcing effort.

 

http://www.traffic-simulation.de/

I really could need something like that on my job, transferred to 3D cars in Unity, and dynamic so we can make the roads and the car just drive on them. If you make a system that works we are certainly interested

 

for those who need simple waypoint based traffic system (with obstacle avoidance and such)
take a look at this
http://forum.unity3d.com/threads/142283-City-Traffic-System

 

Hello everyone, I've been away from unity for a while because of financial problems, I have received a lot of PM's over the traffic simulator. Unfortunately I dont have the money or support to continue the project... I've been avoiding posting this because I thought I'd get back into it but honestly its a mess.

I'm really sorry for those who were kind of looking forward to this project, what I can do is slowly work on improving the current version and simply send anyone interested the DL for free.

The system was suppose to be more then just a physics simulator but instead a complete AI system.

 

So far it has basic traffic light system, detection and avoidance and the basics obviously. But nothing would be easily implementable to a new project and thats what would take a lot of the time in this package.

There is another package which seemed to do the job, you guys should check it out I think you just type in Traffic simulator in the store. Though it wasn't as ambitious as this with all the features I prepared, looked like of what I've already implemented but mine currently would be hard to implement into another project(I could do skype chat to guide the first 3-10 people whos that keen, for free).

 

I can't find it, care to post the link please?

 

This is one I made, based off advice given on this thread.
http://vimeo.com/71577893

 

WAVEDRIVING®
Real terrain data.
Madrid.
Manual:

http://www.youtube.com/watch?v=TaqbCeyOTTM
Game:
http://www.wavedriving.com/WDRW__01
Theoric:

 

hey @shifty i have to build a driving simulator for testing drivers and i would like to use a template of yours if you could make it possible