N scale layout design

Model Railroader Layouts and layout building
1

Hello, i’m trying to decide if i should have two seperate mainlines or just stick to a double main. Right now both are in a double dogbone.

https://onedrive.live.com/redir?resid=EF85458D6AFFD74E!7373&authkey=!AEJXrpe0uQPTOQo&v=3&ithint=photo%2Cjpg

2

Just inserting the above picture: