how to create & place 3D modle in virtual scene

I want to create a simulate game for Traffic Acciden located at

  • road junction
  • bridge or road

but I can’t create many many road or bridge model for 2 reasons

  • heavy work
  • still look not as good as the real picture.

so that’s what I said “virtual scene” means not created real road or bridge model in scene.then where the virtual model source form and where they come out?

  • the GIS model ? like Google map (I’m not sure whether is possible or not?)
  • the panorama camera picture
  • you hint or advice?

So I want the virtual model but need some real car model as prefab that can be drag & drop into scene.
And the final step and most important. The car can run in virtual scene just like they were real.

(Btw,I’m a newbie of unity,I search the asset store but failed found one as a example,I just don’t know whether it can be implement and where the direction )

any hint will be appreciated!

For your models and simulation, I suggest this : https://www.youtube.com/results?search_query=unity+3d+asset+car+simulation

For the remaining, I suggest you look in your other thread, I answered some of you questions there.

I hope it helps

ThunderMusic