Also provided in hard copy if a SASE was sent. Via the Internet using various bicycle mailing lists. Several bike clubs announced it in their newsletters. Not a statistical or random sample of BCs. No attempt was made to estimate the total number of BCs.
Results represent a subset of all BCs.
A written questionnaire was prepared. Contained 36 questions with the maximum number of responses equal to 95. For some questions multiple responses permitted. Comments were permitted at the end. Number of BC trips per week.