Beyond the safety of the walls, infrastructure is limited, at best. Goods and people primarily cross land in heavily-armed caravans, and it's those caravans that shoulder the burden of clearing and maintaining the roads and highways they travel. Paved roads are exceptionally rare, save for the busiest of routes, and passing skirmishes are quite common. Even minor pieces of infrastructure are destroyed so frequently that it's common for even the most minor of bridges or tunnels to support a small handful of people, including guards, engineers, and a quartermaster. These outposts are almost completely sustained by caravan traffic, though they seldom need to collect tolls. Caravans themselves typically sustain independent outposts as a matter of course, and those few greedy captains that attempt to shirk their responsibility often find themselves run out of business sooner, rather than later. Greater works of infrastructure are often the heart of the settlements that maintain them, from the floating cities and famed masons of the central gorges to the dazzling water tunnels maintained by a proud tradition of mages beneath the Capital River.
On the busiest or most dangerous of roads, caravan towns operate with scarcely more than a guard force and a simple civic authority responsible for maintaining and acting as an arbitrator for local disputes. Equal parts clearing house and open-air market, caravan towns began as fortified areas for caravans to rest through the nights in relative safety and rapidly developed into areas for caravan-to-caravan commerce, which naturally carried with it a repute for shady dealings and untrustworthy characters. Some of the more reputable towns have shaken the shadow of rumor, while a number of remote caravan towns are so infamously criminal that inexperienced captains frequently take substantial detours to avoid passing through their gates.
The most nimble of caravan riders are frequently just as skilled as climbing around all angles of the magically-driven carriages as they are in fighting fellbeasts without so much as breaking pace. A handful of daredevil runners ride two-wheeled outriders ahead of and around carriages, earing themselves a reputation equal parts thrill-seeking adrenaline junkie and fearless duelist. A caravan's driver controls the course of the entire convoy from the lead carriage, and his authority is second only to that of the captain.
Water travel shares many of the same organization, with the notable addition that harbors are considered some of the most heavily defended parts of a city. If a city can sustain the risk inherent to operating a harbor and contesting aquatic fellbeasts, naval commerce connects them to a much greater trade network than possible with even the swiftest of land-based caravans. Though air travel has been practically demonstrated, even outside of academic curiosity, the cost of such building and operating such craft is so impossibly high that they're seldom seen, save for the most desperate of emergencies.