Better idea, put trade routes in Gallia that aren't suicidal. The latest iteration of trading factions has discovered great use for freighters... as glorified countermeasure flares.
Activity follows profit. Simple rule. Where there is profit, there are pirates. Where there are pirates, there are lawfuls. I direct you to 4.83's Planet Harris, 4.84's Sigma-13, and 4.85's Omega-49, Pennsylvania, Tau-23, Dublin, and Omega-7, in that order.
For those of you newer than half my examples, let me explain. In 4.84, Dublin got perhaps one person to fly in it each day. Most I ever saw was two. Tau-23 was only active when Panzer and Eppy whipped out their... fleets and started measuring, something that happened every handful of days. Omega-7 had thru-traffic confined to the lanes, and not all that much compared to nearby Sigma-13. Yes, Sigma-13. You know that system that almost no one is in these days? 20 people at a time, and an empty S-13 was weird like an empty NY is weird. If cargo piracy wasn't bugged at the time, you could make a fortune in minutes. No less than four player factions based their entire activity off of patrolling the New Berlin-Sigma-13 jumphole. Four active player factions, at that- and that's not counting the hordes of indy BHG cattlebruisers that flocked to the place.
Now, as I said, Sigma-13 is pretty desolate. What happened? The profit moved elsewhere. The new profit is in mining, so the mining zones become the hotspots. It changes now and then, and can be fixed dynamically due to the magic of FLhook. But the principle is still true.
If you want someplace to be active, put profit in it. I guarantee people will flock to it.