I took Johnny on his first 4 mile ride down the roads today! He just loved it, the cars didn't spook him at all, he just got a little excited once in a while and when he did I would hum, and he would calm down right away.
I love the roads around the barn, I used to board about a mile away from the one we are at now, the roads are perfect for riding, not to many cars and they are gravel with tiny rocks.
Congratulations on your ride! Trail riding is addictive, as long as you have the right horse for it (it sounds like you do!). I am riding the roads too, until the forest dries out enough that we don't sink to china.
I just find it a special and wonderful thing to be out riding with your best friend- your horse!