OOC Discussion II
Seeing reluctance among the others, Ser Ragnall will drive the cart. His prisoner, his responsibility and all. (He's like Fost - he much prefers the saddle.) He'll gladly take occasional relief, though, even to just stretch his legs in transit.
So, it looks like we have Wendoll & Arnie scouting head, Fost on horseback just ahead of the tumbrel, Ser Ragnall driving, Tyrus alternately riding passenger or walking alongside, and Erin walking alongside (and, to Ser Ragnall's hope, occasionally spelling him as driver).
On a side note, you would all know that the Old Imperial Highway isn't fully intact (and some of you would know it wasn't fully completed by the Tevinter Empire; some sections were completed later). There are sections that have fallen beyond modern capabilities to shore up or repair, requiring travelers to go to ground from time-to-time. A number of stretches on the west bank of Lake Calenhad and some sections traversing the Frostbacks are in disrepair, but there is at least one section on the east bank of Calenhad (your route) that requires bypassing; it's supposed to be marked.