There are many references that are free for downloading. These include the latest publications from the National Academies Press that includes outputs from the National Academies of Sciences, Engineering and Medicine. I am sharing here and posting also as a reference for me to return to a new publication from the National Cooperative Highway Research Program:

NCHRP Research Report 941: Bicyclist Facility Preferences and Effects on Increasing Bicycle Trips by Watkins, Clark, Mokhtarian, Circella, Handy and Kendall.

https://www.nap.edu/catalog/25792/bicyclist-facility-preferences-and-effects-on-increasing-bicycle-trips?utm_source=NASEM+News+and+Publications&utm_campaign=79720e1f2f-NAP_mail_new_2020_05_04&utm_medium=email&utm_term=0_96101de015-79720e1f2f-106035917&goal=0_96101de015-79720e1f2f-106035917&mc_cid=79720e1f2f&mc_eid=ac92e6afc0

The research was supported by the American Association of State Highway and Transportation Officials (AASHTO) in cooperation with the Federal Highway Administration (FHWA).

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