Sorry, mocanic, you're also incorrect. A 2011 study by U.S. PIRG found that gas taxes, auto registration, tolls, and the like cover roughly half of highway construction costs. The rest is general appropriation. And since the gas tax hasn't increased since the early 1990s, the proportion of (my) taxpayer dollars filling that gap is ever increasing. Consider also that most bicyclists also own cars and pay the appropriate licensing fees, etc. And to take your straw man argument to its logical conclusion: If motorists are dismayed that their user fees go to bike paths, would they really prefer NO bike paths and all those cyclists on the road instead? So again -- bicyclists are already paying their fair share.