If you're a small vehicle and you want to cross the main flow of traffic, you pretty much have to wait until there's a clear spot to go. The only other option is to get a bunch of other small vehicles who are going the same direction, the more the better. Then you all slowly but surely inch forward into the cross traffic, together. Sooner or later one of the big vehicles is going to give way, then the others going that way have to stop, then you can all cross.
