How to use ue4 splines like blender curve modifire?

first of all sorry for my bad english.

how can make something like this in ue4

214142-blender.gif

dose it benefit in performance if i use some road meshes and manipulate them on the spline it instead of spline mesh case i read somewhere that spline mesh cost performance, especially it gives me better control on what to appear on screen?

one more question dose the package size increase when i duplicate some objects like the road in the map or it dose not because its one mesh and dose not matter how much you add to the map?

I believe you might be looking for SplineMesh:

Here is a tutorial:

i know splinemesh i want to move the mesh on the curve in runtime in the game and the mesh deform on the curve.

I can’t test it right now, but I believe that the spline mesh has a property called “Start Offset”, which you can increase and with that the mesh will move along the spline and blend it. But again, I can’t test it now to confirm that.