Professional analysis of the
<a href="http://www.tfhrc.gov/safety/pedbike/ctanbike/24.pdf">http://www.tfhrc.gov/safety/pedbike/ctanbike/24.pdf</a>
<a href="http://www.tfhrc.gov/safety/pedbike/ctanbike/24b.pdf">http://www.tfhrc.gov/safety/pedbike/ctanbike/24b.pdf</a>
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