There's a geometry error on Bedford road that won't let you intersect anything with it. I've reported the problem multiple times and it hasn't been fixed yet. Best to just avoid the area for now!
I'm also trying to avoid doing edits that create unnecessary intersections. Where you've ended the track before Nyberg, for example (and presumably where you ended it at the CN tracks) would leave 2 extra endpoints that need would need to be adjusted later should someone choose to edit that segment of track. I've been ending mine at the closest completed intersection to avoid this.
I'm also trying to avoid doing edits that create unnecessary intersections. Where you've ended the track before Nyberg, for example (and presumably where you ended it at the CN tracks) would leave 2 extra endpoints that need would need to be adjusted later should someone choose to edit that segment of track. I've been ending mine at the closest completed intersection to avoid this.