Be attentive to the extra space requirements of commercial vehicles, and be ready to leave the roadway if necessary. Remember that these professional drivers are earning their living on the road, while you are using it for recreation. But, the classic cycling accident occurs when a cyclist stops for a rest or to take a photo, and remains right on the shoulder travel lane. A second cyclist, who perhaps is looking at the scenery or just concentrating on the road, runs into the first. While usually not life threatening, these accidents can lead to bruises and perhaps damaged equipment.
Stationary hazards account for the majority of cycling accidents.
Watch out for oil, wet leaves, hot tar, parked cars, rocks, broken pavement, and railroad crossings. Watch for loose gravel, especially at intersections and where side roads or driveways enter your shoulder. This is a series of 5-8 railroad rails spaced 3 to 6 inches apart so that cattle won't try to cross. In Montana, the bicycle is recognized as a legal vehicle on the roadways, so you as the cyclist are subject to all of the same traffic laws you would obey as a motorist. But, there are also rules of the road dictated by common courtesy.