If that is the case, you will run out of memory very quickly with that collection of mods. You do not mention if you are using the 4GB Patch with the Steam version or if you are using the GOG version instead (which already has that patch applied), but without it a 32-bit game like FNV is allocated only 2GB of memory from your system RAM. I understand i know that fallout nv is a mess that was rushed and all that history but i never though it would be this type of problem related to textures and its good to know i do use character overhaul a texture mod that changes the characters/npcs textures and EVE that enhances textures as well too but well i think its the only 2 mods i have for texture mods so if i getting this i might need to have only 1 texture mod installed and thats it? because i do have installed the 4gb patch installed and all these ''anti-crash'' mods/plugins installed and still the issue but as you can see i do not have 10000 mods installed but well i guess i will try play without these texture mods installed and see what will happen i appreciate your attention and help. Loading and crashing until I toned down on the texture sizes and mods number in general

I ran into similar issues pretty quick, not only when fast-travelling but whenever my character changed cells. But, if that involves quite a few texture mods you rapidly reach the edge of what the Gamebryo engine is capable of. I myself am a mod nut and tend to load the game with everything you can throw at it. Oblivion and Fallout 3 were still more or less okay on the Gamebryo engine but Fallout New Vegas should never have been released on that engine because of the scope the developers were aiming at.

The problem with assets and RAM use for FNV are more game-engine related. A crash when fast-travelling is usually a loading issue and loading issues are often related to RAM use, or more to the point, running out of RAM while loading the assets of the environment you're going to wind-up at.

Fallout new vegas fast travel crash