Again: Be carefull here.
Consider:

For the blue connections it will work. But with the red connection, you create additional crossings while traversing the middle spline.
A good parameter would be a minimum road length value.
Again: Be carefull here.
Consider:

For the blue connections it will work. But with the red connection, you create additional crossings while traversing the middle spline.
A good parameter would be a minimum road length value.