It also includes case studies from States that have tried and evaluated shoulder rumble strips. According to Jim Growney of the FHWA New York Division, more than 60 requests for information have already been filled. We get a wide variety of requests. Most are from State people who are interested in the experiences of other States, particularly the effectiveness of various devices and technologies. Growney says a good deal of the discussions and information posted on the site center on improving motorist safety without adversely affecting bicyclist safety.
Bicyclists travel on most primary and secondary roads, and on some freeways and expressways.
Many bicyclists prefer to ride on the shoulder rather than in the travel lane of high-speed roadways, and thus they often oppose rumble strips in the shoulder. The Web site discusses these options and provides a range of solutions from around the United States. Rumble strips, such as these in New York State, create an audible rumbling sound and a vibration in the steering wheel when a vehicle drives over them.