Indeed, since most races and nations have used hyperspace travel for centuries, verifying routes should be pretty routine. And we haven't read a hint that going translight in hyperspace is any different than just using hyperspace without translight in terms of danger. Almost all traffic obstacles are pretty huge and easy to see. Black holes will leave pretty obvious changes on gravity instruments. And since those don't just pop up out of nowhere, you can see them from far off. As mentioned before, since hyperspace jumping was already pretty fast in our own galaxy, securing safe jump lanes and mapping the galactic potholes should be pretty routine and wouldn't even need mentioning. It's like driving a car and knowing to use roads and if necessary maps. Nobody mentions that either, at best you get a "drive safe, honey".betatester wrote:Ya but once you have a length of the route verified; you can make that jump in a single instance. They could just send automated translight probes to map a galaxy; just like their hyperspace probes.
There are plenty of ways to enable fast translight travel

But what I don't like in your post is the part where you send automated translight probes. Just using translight will slow down the mapping work, better to jump as fast as possible in a grid pattern and scan all around you at every jump. If you send probes to go translight in hyperspace, you put yourself at a huge risk. If even one of those probes fails and remains behind to be found by someone else, you have a situation infinitely worse than if you just jump manned ships around, waste peoples time and perhaps even loose a scout or two.
Don't let sensitive technology out of your hands in form of automated anythings!