Chapter 20: Motorcyclist Design Considerations
20.1 Overview
This chapter discusses motorcycle-specific road safety advice to aid roadway designers when preparing plans for construction. The chapter is specific to motorcycling safety, the goal being to ensure that issues faced by motorcyclists are known when roadway plans are designed. The chapter is divided into three sections providing information on the following highway features:
- Pavement Features- Pavement features can include utility covers, pavement markings, and surface treatments, all of which can affect motorcycle stability.
- Roadside Features- These are physical objects in the cross section that can increase the severity of a collision such as trees, vegetation, posts, and longitudinal barriers.
- Highway Features -These are specific elements of the highway geometry such as horizontal curves and intersections where motorcyclists may be vulnerable to a collision.
This chapter describe various issues that impact motorcycle safety. Relevant mitigation measures are then identified that can help reduce the risk to motorcyclists. The chapter includes the following sections and subsections:
20.1 Overview
20.2 Pavement Features
- 20.2.1 Metal Covers;
- 20.2.2 High Friction Surfacing;
- 20.2.3 Removal of Pavement Markings; and
- 20.2.4 Pavement Markings.
20.3 Roadside Features
- 20.3.1 Vegetation;
- 20.3.2 Signs and Other Road Furniture;
- 20.3.3 Longitudinal Barriers;
- 20.3.4 Shoulders; and
- 20.3.5 Clear Zones.
20.4 Highway Features
- 20.4.1 Horizontal Curves (General);
- 20.4.2 Horizontal Curves (Specific);
- 20.4.3 Intersections;
- 20.4.4 Roundabouts; and
- 20.4.5 Signs Related to Motorcyclists.
20.5 Motorcycle Safety During Construction
- 20.5.1 Pavement; and
- 20.5.2 Construction Maintenance.
20.6 Summary of Recommendations