you want to be looking at the automata files, there are several depending on your style of play, you'll be looking for the one called.
NetworkAddonMod_Automata_Plugin_Radical_Automata24 rasie eyecandy distance,
any of the NetworkAddonMod_Traffic_Plugin xxx plugins with higher capasity speed and or x10 comute will increase distance the sims actual travel in the simulator as per the pathfinding

use only 1 Traffic plugin at 1 time
not sure if this includes the trolley or if it's a seperate automata prop file though , sorry I don't use the GLR personelly.
ps need traffic volume and the graphics turned up to see the rail, more often the top two zoom levels (depends on your specs) the trains aren't visible too...