I though some people might be intersted in this:

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A comparison of cycling rates and policies in the six largest Canadian cities.

"All six of the Canadian case study cities examined in this article
have made impressive efforts to encourage more and safer
cycling. The result is bicycling shares of urban travel roughly
three times as high as in American cities of comparable size. For
all metropolitan areas in aggregate, the bike share of work trips
in Canada was 1.2% in 2001, compared to only 0.4% in the
United States (Statistics Canada, 2003; Pucher and Renne,
2003). That is particularly impressive given the long, harsh
winters in most Canadian cities."